How to find the density of a liquid given only volume and molecular weight?

Answers

Answer 1

If you’re given molecular weight, you know that density is mass/volume. You need to convert the molecular weight to volume. If you know what molecule it is, use the gram formula mass to convert it into grams.

Related Questions

what is the mass of a 1.00cm3 piece of iron having a density of 7.90g/cm3

Answers

7.90g/cm³ = 7.90g/1cm³ - this density means that 1 cm³ has mass = 7.90 g

Or you can do it another way
1.0 cm³*7.90 g/cm³= 7.90 g

Answer:

Mass of iron = 7.90 g

Explanation:

Given:

Volume of iron, V = 1.00 cm3

Density of iron, D = 7.90 g/cm3

To determine:

Mass of iron, M

Explanation:

Density of a substance is the mass occupied by it in a given volume

I.e. [tex]Density = \frac{Mass}{Volume}[/tex]

[tex]Mass = Density*Volume[/tex]

For the given piece of iron:

[tex]Mass = 7.90 g/cm3 * 1.00 cm3 = 7.90 g[/tex]

Know how you would determine the percent yield of a reaction if you have the given amount of the reactants and the amount of the product actually collected in the lab.

Answers

First, use the given amount of reactants to calculate the theoretical amount of products that should be formed based on stoichiometry. Next, divide the actual amount of obtained product by that theoretical amount, and multiply by 100%. This gives the percent yield of the reaction.

When only one pair of shared electrons is involved in a covalent bond, the linkage is called a ________ bond. triple double single resonant?

Answers

The answer is Single. When only one pair of shared electrons is involved in a covalent bond, the linkage is called a single bond. A single bond is usually a σ bond.

A hydrocarbon that includes a triple covalent bond is classified as _____.

Answers

Hydrocarbons with triple bonds are classified as Alkynes.

Alkynes have one or more triple bonds between two Carbon atoms but the general formula is CnH2n-2. One is σ bond and rests are π bonds. Hence, alkynes are called as unsaturated hydrocarbons.

What is the mass of aluminum metal that releases 22.4 l of hydrogen gas at stp from hydrochloric acid? __al(s) + __hcl(aq) → __alcl3(aq) + __h2(g) 18.0 g 81.0 g 9.00 g 40.5 g 27.0 g?

Answers

The mass of Al metal that releases 2.4 L of hydrogen gas at STP is calculated as below

AT STP 1 mole =22.4 l
what about 22.4l =? moles
(22.4 L x 1 mole) /22.4 L= 2mole

write the reacing reaction

2Al+ 6 HCL = 2AlCl3 + 3H2
by use of mole ratio between Al to H2 which is 2 : 3 the mole Al = 1 x2/3 = 0.667 moles
mass =moles x molar mass
=0.667 mole x27 g/mol= 18 grams

What is the ionic form of this unbalanced equation? mno2 + hno2 → mn(no3)2 + h2o?

Answers

The ionic form of the unbalanced equation

MnO2 +HNO2 = Mn(NO3)2 +H2O is as below

MnO2(s) + H^+(aq) + NO2^-(aq) = Mn^2+(aq) + No3^-(aq) + H20(l)

MnO2 does not dissociate since it is in solid state. In addition H2O is in liquid state thus does not dissociate in to ions

How many moles of h2so4 are needed to neutralize 1.56 moles of koh?

Answers

the balanced equation for the above neutralisation reaction is as follows;
2KOH + H₂SO₄ --> K₂SO₄ + 2H₂O
stoichiometry of KOH to H₂SO₄ is 2:1
neutralisation is the reaction between H⁺ ions and OH⁻ ions to form water which is neutral
number of KOH moles - 1.56 mol
2 mol of KOH require 1 mol of H₂SO₄ for neutralisation
therefore 1.56 mol of KOH require - 1/2 x 1.56 mol = 0.78 mol
0.78 mol of H₂SO₄ are required for neutralisation

What binary compound would be formed from barium ions and fluoride ions?

Answers

Barium fluoride (BaF2) - Also known as Barium(II) fluoride - because it's a combination of two different kinds of ions (binary = two).

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