To find the pressure in the scuba diver's tank, you can use the Ideal Gas Law. Convert the provided quantities into appropriate units (g to moles, °C to K, etc), then substitute into the Ideal Gas Law equation to solve for pressure.
Explanation:To calculate the pressure in the scuba diver's tank, it is necessary to apply the Ideal Gas Law, which states PV = nRT. Here, P is pressure, V is volume, n is moles of the gas, R is the ideal gas constant and T is temperature in Kelvin.
First, you need to convert all the given values into compatible units. 0.29 grams of Oxygen need to be converted to moles. We know that the molar mass of Oxygen is about 32 g/moles, hence, 0.29 g is approximately 0.00906 moles. The volume of 2.3L is appropriate as is, and the temperature needs to be converted from Celsius to Kelvin by adding 273.15 to the °C value. Thus, the temperature will be 9 + 273.15 = 282.15 K.
Substituting the found values and the ideal gas constant (which is about 0.0821 L·atm/(K·mol) in this case) in the equation P = nRT / V, we have:
P = (0.00906 moles * 0.0821 L·atm/(K·mol) * 282.15K) / 2.3L
By calculating the above expression, we can get the pressure in the diving tank.
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To find the pressure in the scuba tank, you can use the ideal gas law equation (PV=nRT). Convert the given temperature to Kelvin and the given mass of oxygen to moles. Plug the values into the equation to solve for the pressure, which is approximately 0.110 atm.
Explanation:To find the pressure in the scuba tank, we can use the ideal gas law equation, which is PV = nRT. In this equation, P represents the pressure, V represents the volume, n represents the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.
We first need to convert the given temperature of 9°C to Kelvin. To do this, we add 273.15 to the Celsius temperature, giving us 9 + 273.15 = 282.15 K.
Next, we convert the given mass of oxygen (0.29g) to moles. Since the molar mass of oxygen (O₂) is 32 g/mol, we divide the mass by the molar mass: 0.29g / 32 g/mol = 0.009 mol.
Now we can plug the values into the ideal gas law equation and solve for the pressure:
PV = nRT
P * 2.3L = 0.009 mol * 0.0821 L·atm/mol·K * 282.15 K
P = (0.009 mol * 0.0821 L·atm/mol·K * 282.15 K) / 2.3L
P ≈ 0.110 atm
Therefore, the pressure in the scuba tank at 9°C is approximately 0.110 atm.
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What are the negative impacts global warming has on coastal communities?
Answer:
Climate change can affect coastal areas in a variety of ways
Explanation:
Final answer:
Global warming leads to sea level rise and extreme weather, threatening coastal communities with flooding, erosion, loss of habitat, and freshwater scarcity. Infrastructure must adapt, but preventive action, including reducing greenhouse gas emissions, is essential.
Explanation:
The negative impacts of global warming on coastal communities are profound and long-lasting. With current sea levels rising by approximately 0.25 meters, coastal cities face increased vulnerability to storm surges, which are exacerbated by high tides and heavy waves during storms. This not only threatens human structures but also contributes to the loss of biodiversity as ecosystems are disrupted. Furthermore, as the planet warms, polar ice caps and glaciers continue to melt, leading to a predicted rise in sea levels of two to four feet by 2100. This would result in widespread inundation of shorelines, reduction of island sizes, and possible disappearance of some islands. The alteration in the freeze-thaw cycle of the poles and glaciers may also lead to a lack of freshwater resources and an abundance of saltwater.
Changing patterns of precipitation due to climate change will require reconstruction of water management and food production infrastructures, with further impacts on ecosystems. The changing water flows can lead to the clearing of new areas for agriculture, road construction, and other developments, potentially impacting natural habitats and leading to a shift in biodiversity. Additionally, warming could introduce new economic activities in previously inaccessible Arctic regions, inevitably leading to further environmental degradation through infrastructure development.
A pressure cooker contains 0.355 mole of air, which occupies a volume of 5.68 liters. The temperature inside the pressure cooker is 394 K. What is the absolute pressure of the air in the pressure cooker? The pressure of the air is_ pascals. Express you answer to three significant figures.
Answer:
We will use ideal gas equation in this problem
PV = nRT
Where
P = pressure of gas or air = ?
V = volume of air = volume of pressure cooker = 5.68 L
T = temperature = 394 K
n = moles of air = 0.355
R = ideal gas equation = 0.0821 L atm / mol K
Putting values
Pressure = nRT / V = 0.355 X 0.0821 X 394 / 5.68 = 2.02 atm.
Before a Bill can move to "floor consideration" in the General Assembly, it must first pass through
Answer:I believe it is the Senate
Explanation:
Answer:
C) committee consideration.
Explanation:
Have a nice day :)
A student was given four unknown solutions each was checked for conductivity and tested with phenolphthalein the results below
Based on data in table which unknown solution could be 0.1M NaOH
The solution which could be with 0.1 M NaOH is solution "C"
Explanation:
I have attached the snapshot of the table for the reference.Based on the data from the table, the solution which could be in the 0.1 M of NaOH will be the solution "c" the conductivity is good and the colour with the Phenolphthalein..Since the NaOH pH value is always greater than seven.And the chemical solution NaOH is based in nature when it is dissolved in nature separates into Na+ and OH- ions. NaOH is always a strong base because it completely divides in water to yield hydroxide ions.
Question 2
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Hydrochloric acid reacts faster with powdered zinc than with an equal mass of zinc strips because the greater the surface area of the powdered zinc
decreases the frequency of particle collisions
2.
decreases the activation energy of the reaction
increases the frequency of particle collisions
increases the activation energy of the reaction
There is an increase in the frequency of particle collisions which leads to the increased rate of the reaction.
Explanation:
Hydrochloric acid reacts faster with the powdered zinc than with the equal mass of zinc strips.
Since the surface area of the Zinc particle increases when it is powdered and has more active spots when compared to less number of active sites in Zinc strips and so the number of collision between the Zinc particles and the particles of Hydrochloric acid also increases and consequently the rate of the reaction also enhances.
So there is an increase in the frequency of particle collisions.
When 100. mL of 6.00 M HCl is diluted to 300. mL, the final concentration is ________.
A - 3.00 M
B- 12.0 M
C- 2.00 M
D- 18.0 M
E- 1.00 M
Answer:
2.00 M
Explanation:
The concentration of a solution is given by
[tex]M=\frac{m}{V}[/tex]
where
m is the mass of solute
V is the volume of the solution
At the beginning, the solution has:
M = 6.00 M is the concentration
V = 100 mL = 0.1 L is the volume
So the mass of solute (HCl) is
[tex]m=MV=(6.00)(0.1)=0.6g[/tex]
Then, the HCL is diluted into a solution with volume of
V = 300 mL = 0.3 L
Therefore, the final concentration is:
[tex]M=\frac{m}{V}=\frac{0.6}{0.3}=2.00 M[/tex]
Answer:
The final concentration is 2 M
Explanation:
Dilution is the procedure to prepare a less concentrated solution from a more concentrated one. It consists of adding more solvent.
The amount of solute (the solute is the solid, liquid or gaseous substance that dissolves in the solvent to produce a homogeneous mixture known as a solution and is generally found in a smaller proportion) does not vary. The volume of the solvent varies, so that the concentration of the solute decreases, as the volume of the solution increases.
In summary, dilution is a procedure by which the concentration of a solution is decreased, generally with the addition of a diluent.
One way to calculate concentrations or volumes in dilutions is through the expression:
Ci * Vi = Cf * Vf
where
Ci = initial concentrationVi = Initial volumeCf = Final concentrationVf = Final volumeIn this case:
Ci= 6 MVi= 100 mL= 0.1 L (1 L=1000 mL)Cf= ?Vf= 300 mL= 0.3 LReplacing:
6 M* 0.1 L= Cf*0.3 L
Solving:
[tex]Cf=\frac{6 M* 0.1 L}{0.3 L}[/tex]
Cf=2 M
The final concentration is 2 M
What is occurring to the butane molecule to form a molecule of carbon dioxide
Answer:
chlorine gas and oxygen
1. Identify a conjugate acid-base pair in the reaction
NH3 + H2O + NH4+ + OH-
A. H20 and OH
B. NH3 and H20
C. NH3 and OH
D. H20 and NH4+
What other objects are often arranged by their properties
Answer:
Metaloids and metals.
hi:) i need help with q17. Thanks in advance:)
Answer:
Q17. D
Explanation:
A single line between 2 atoms represent a single covalent bond between a pair of electrons. There are 17 lines in the diagram hence there are 17 bonding pairs of electrons in the molecule.
Do count the double bond as 2 bonding pairs of electrons.
PLEASE HELP ASAP
covalent compounds form structures called crystals
TRUE OR FALSE
Final answer:
The statement that covalent compounds form crystals is TRUE in the context of covalent network crystals, such as diamond or quartz, but FALSE when referring to typical molecular compounds, which exist as discrete units but can also form molecular crystals held by weaker forces.
Explanation:
The statement 'Covalent compounds form structures called crystals' can be both TRUE and FALSE depending on the context. Unlike ionic compounds, which are known for their crystal lattice structures, molecules of covalent compounds typically exist as discrete units. However, there are also covalent network crystals, such as diamond and quartz, where atoms are covalently bonded in a continuous three-dimensional network, forming a crystalline structure. Additionally, there are molecular crystals that do not form a covalent network but are held together by weaker intermolecular forces.
Atoms arrange themselves into lattices to form a crystal because of a net attractive force between their constituent electrons and atomic nuclei. These crystalline structures are categorized into ionic, covalent, and metallic, based on their bonding. It's important to distinguish between molecular crystals and covalent network crystals when discussing covalent compounds in crystal structures.
The relative energies and forces that hold crystals together are case-dependent, with factors like ionic sizes and stoichiometries influencing the structure of ionic crystals. Covalent network crystals have very high melting and boiling points, are hard and brittle, and do not conduct electricity because they are composed of atoms, not ions.
Answer:False
Explanation:
It’s false
A 50 gram object with a specific heat of 0.3825 J/g*C releases 4593 joules of heat.
If the initial temperature was 235.16C, calculate the final temperature.
Answer:
475.26°C
Explanation:
Given parameters:
Mass of object = 50g
Specific heat = 0.3825J/g°C
Quantity of heat = 4593Joules
Initial temperature = 235.16°C
Unknown:
Final temperature = ?
Solution:
The quantity of heat absorbed by a body is a function of the mass, specific heat capacity and temperature change the body undergoes.
Mathematically, this relationship is given as;
H = m c Ф
where H is the quantity of heat
m is the mass of the body
c is the specific heat capacity
Ф is the temperature difference
Ф = final temperature - initial temperature
Since we are solving for final temperature, let us substitute for other given parameters;
H = m c ( final temperature - initial temperature)
4593 = 50 x 0.3825 x (F - 235.16)
F - 235.16 = 240.1
F = 240.1 + 235.16 = 475.26°C
PLZ HELP WILL GIVE BRAINLIEST
Which three temperature readings all mean the same thing?
373 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit
273 Kelvin, 0 degrees Celsius, 212 degrees Fahrenheit
100 Kelvin, 0 degrees Celsius, 32 degrees Fahrenheit
273 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit
Answer:
The answer is A
Explanation:
I checked on a temperature converter calculator.
Answer:
100 Kelvin, 0 degrees Celsius, 32 degrees Fahrenheit.
Explanation:
How many chlorine atoms are on the products side of the reaction 2Al + 6HCl → 2AlCl3 + 3H2?
Answer:
6
Explanation:
According to the balanced chemical equation, there are six chlorine atoms on the product side.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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How much resistance is there in a circuit where 48 volts is pushing 6 Amps through the circuit?
Group of answer choices
288 ohms
54 ohms
8 ohms
42 ohms
Resistance is equal to 8 ohms according to ohm's law.
Explanation:
Ohm's law describes the relationship between the voltage, current and resistance.
Ohm's law states that current is directly proportional to voltage and inversely proportional to resistance.
According to Ohm's law V = I × R
The units of voltage are measured in volts, current in amperes, and resistance in ohms.
Given data : Voltage = 48 volts
Current = 6 Amps
Substituting given data in ohm's law
48 = 6 × R
R = 8 ohms
Therefore, resistance is equal to 8 ohms fro the given data.
She found that the electromagnet picked up the entire pile of paper clips the instant she turned it on. Which of the following might allow Charlotte's electromagnet to pick up a single paper clip at a time? A. increasing the distance between the electromagnet and the paper clips B. increasing the number of batteries supplying voltage to the electromagnet C. increasing the number of loops in the electromagnet's coil D. removing the iron nail from the core of the electromagnet
Answer:
Increasing the distance
Explanation:
I dont know if this is right but i think it is since the magnets works at a distance so moving it away is the answer i think.
Answer:
it D and A
Explanation:
I solved this on study island before
What type of plate motion (together, apart, or sliding) has occurred at the Himalayas?
Many organisms in Kingdom Fungi grow best in warm, moist conditions.
Which other characteristic is common to organisms in Kingdom Fungi?
Answer:
Kingdom Fungi refers to the group of eukaryotic organisms like fungi, mushrooms, molds and yeasts.
Explanation:
The fungi kingdom is made up of eukaryotic organisms whose cell walls are made of chitin.
Next I will name some characteristics of these organisms:
They are not plants or animals .They are responsible for absorbing nutrients from other organisms, which they use as food .Some, like mushrooms and yeast, are edible. They present cellular orguils and vacuoles .They lack chloroplasts .They produce spores .They are able to break down dead matter .They develop in humid and dark areas .Penicillin is obtained from these organisms.Answer:
sorry but i need the ptsm because I only have ten
Explanation:
which of the following views of weather is an example of systems thinking
Answer:
Explanation:
Climate
Convert 765 torr to atm
Answer:
1.00658 atm
Explanation:
765 torr is equal to 1.0079 atm using the conversion factor: 1 atm = 760 torr.
Pressure can be measured in various units depending on the system of measurement being used. Some common units of pressure include:
Atmosphere (atm)Pascal (Pa)Kilopascal (kPa)Millimeter of Mercury (mmHg or torr)Bar (bar)Pound per square inch (psi)Newton per square meter (N/m²)Each unit of pressure has its specific conversion factors to other units. For example, 1 atm is approximately equal to 101.325 kPa or 760 mmHg. It's essential to use the appropriate unit for the specific application and to ensure consistency when comparing or converting pressure measurements.
The conversion factor:
1 atm = 760 torr.
765 torr ÷ 760 torr/atm = 1.0079 atm
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Elements are arranged left to right, top to bottom, from smallest to largest, by ____________ _____________ .
Answer: increasing atomic number
Explanation: Elements are arranged left to right, top to bottom, from smallest to largest, of increasing atomic number.
What is hexaboron monosilicide formula
The molecular formula for hexaboron monosilicide is B6Si, which indicates the compound contains six boron atoms and one silicon atom.
Explanation:The hexaboron monosilicide formula is B6Si. This formula denotes that there are six atoms of boron (B) and one atom of silicon (Si) in a molecule of hexaboron monosilicide.
It is identified as hexaboron because of the prefix 'hexa-' which signifies six in chemical nomenclature, referring to the six boron atoms. Similarly, the use of 'mono-' in monosilicide represents one silicon atom.
This compound exists in crystalline form as a superhard material, and is often studied in the field of material science.
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which of Newton's laws state that an object's acceleration is directly related to the net force applied and inversly related to the mass
At which temperature would an object radiate the least amount of electromagnetic energy?
1the boiling point of water (100°C)
2the temperature at the stratopause (0°C)
3the temperature of the North Pole on December 21 (-60°F)
4room temperature (293 K)
At the temperature of the North Pole on December 21 (-60°F) an object radiates the least amount of electromagnetic energy.
What are electromagnetic radiations?Electromagnetic radiation consists of waves of the electromagnetic field, which pass through space and carry radiant energy. It involves microwaves, radio waves, infrared, visible light, UV radiation, X-rays, and gamma rays.
Electromagnetic radiation exhibit electromagnetic waves, which oscillate with the electric as well as magnetic fields. Electromagnetic waves are generated due to periodic motion in the electric field or magnetic field.
Depending on the periodic change in these waves that happens and the power formed, different wavelengths of the electromagnetic spectrum are generated. The effects of electromagnetic radiation on chemical compounds and biological organisms depend on the power of electromagnetic radiation and its frequency.
In order of increasing frequency of radiations and decreasing wavelength of radiations, these waves are arranged in the electromagnetic spectrum.
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A scientist collects 0.24 mole of hydrogen gas in a balloon. The temperature of the hydrogen is 35 degrees Celsius, and the pressure in the balloon is 1.05 atmospheres. what is the volume of the balloon? the volume of the balloon is_ liters. Express your answer to two significant figures.
Answer:
5.77 L
Solution:
Data Given:
Moles = n = 0.24 mol
Temperature = T = 35 °C + 273 = 308 K
Pressure = P = 1.05 atm
Volume = V = ?
Formula Used:
Let's assume that the hydrogen gas in balloon is acting as an Ideal gas, the according to Ideal Gas Equation,
P V = n R T
where; R = Universal Gas Constant = 0.082057 atm.L.mol⁻¹.K⁻¹
Solving Equation for V,
V = n R T / P
Putting Values,
V = (0.24 mol × 0.082057 atm.L.mol⁻¹.K⁻¹ × 308 K) ÷ 1.05 atm
V = 5.77 L
In a titration, 10.0 ml of 0.0750 M HCl(aq) is exactly neutralized by 30.0 ml of KOH(aq) of unknown concentration. What is the concentration of the KOH(aq)solution?
Answer: 0.0250
Explanation: 10 X 0.0750 = .75
.75 / 30 = 0.0250 M
The concentration of KOH(aq) solution is 0.025 M.
Explanation:In this titration, the volume and concentration of HCl(aq) are given as 10.0 ml and 0.0750 M, respectively. The volume of KOH(aq) is given as 30.0 ml. To find the concentration of KOH(aq) solution, we can use the concept of stoichiometry and the balanced equation for the reaction:
HCl(aq) + KOH(aq) → H2O(l) + KCl(aq)
From the balanced equation, we can see that the ratio of moles of HCl to KOH is 1:1. Therefore, the moles of KOH can be calculated as:
moles of KOH = moles of HCl = volume of HCl × concentration of HCl
Substituting the values:
moles of KOH = 10.0 ml × 0.0750 M = 0.750 mol
The concentration of KOH(aq) solution can be calculated using the moles of KOH and the volume of KOH(aq) solution:
concentration of KOH = moles of KOH / volume of KOH(aq)
Substituting the values:
concentration of KOH = 0.750 mol / 30.0 ml = 0.025 M
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Jaką maksymalną ilość gramów azotanu (V) potasu można rozpuscic w 300g wody w temperaturze 90 C
Proszę o pomoc!!!
Answer:
609gExplanation:
The translated question is:
What maximum amount of grams of potassium nitrate (V) can be dissolved in 300g of water at 90 °C
Solution
To answer the question you need to consultate the solubiity information for potassium nitrate (V), KNO₃.
The attached table contains the solutibility table for KNO₃ at different temperatures.
At 90ºC it is 203g / 100g water.
Then, to calculate the maximum amount of grams of potassium nitrate (V) that can be dissolved in 300g of water at 90 °C, just multiply by the amount of water:
203g / 100g water × 300 g water = 609g ← answerTrue or false : A glacier can only form in an area where more snown falls than melts
Answer:
True
Explanation:
Glaciers are form when the snow is melted and starts to run down the lake or in form of water making it the glacier.
Answer:true
Explanation: graciers need to move
Please help me out, picture attached
Answer:
the number of atoms in the product is the same as the number of atoms in the reactant
Explanation:
In the product, there are a total of 10 atoms, whereas in the reactant, there are also a total of 10 atoms, the number of atoms in the product is the same as the number of atoms in the reactant.
Based on the equation below, how many moles of aluminum sulfate (Al2(SO4)3) will be produced from the reaction of 5.8 moles of aluminum hydroxide (Al(OH)3) and excess sulfuric acid (H2SO4)?
2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O
A. 2.9 moles of aluminum sulfate
B. 3.9moles of aluminum sulfate
C. 5.8 moles of aluminum sulfate
D. 11.6 moles of aluminum sulfate
Answer:
a is the correct answer
Explanation:
i just did this question and it said a was right
The number of moles of aluminum sulfate produced from the 5.8 moles of aluminum hydroxide and excess sulfuric acid is 2.9 moles.
The balanced chemical equation can be given as:
2 Al(OH)₃ + 3 H₂SO₄ [tex]\rightarrow[/tex] Al₂(SO₄)₃ + 6 H₂O
In the above reaction, the stoichiometry of the amounts of each compound participating in the reaction is:
Al(OH)₃ - 2 moles
H₂SO₄ - 3 moles
Al₂(SO₄)₃ - 1 mole
H₂O - 6 moles
From the above observation, it can be assumed that for every 2 moles of aluminum hydroxide produce 1 mole of aluminum sulfate.
Then, the number of moles produced by 5.8 moles of aluminum hydroxide is x.
[tex]\text{moles of Al}_{2} (\text{SO}_{4} ){3} =\dfrac{\text{5.8moles of Al(OH)}_{3} \times \text {1 mole of Al}_{2} (\text {SO}_{4} ){3}}{\text {2moles of Al(OH)}_{3}}[/tex]
Thus, 2.9 moles of aluminum hydroxide will be produced from the 5.8 moles of aluminum hydroxide.
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