# chemistry

1.92g sample of hydrogen peroxide solution generates 37.8mL O2 at 759 torr and 35 C. What is the percent strength of the peroxide solution?

how would you solve this problem and which equations would you use?

1. 👍
2. 👎
3. 👁
1. Write the equation.
Use PV = nRT and solve for n, the number of mols O2. Convert mols O2 to grams O2, then %O2 = (g O2/g solution)*100 = ??
check my thinking.

1. 👍
2. 👎

## Similar Questions

1. ### Chemistry

Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, , can be titrated against a solution of potassium permanganate, . The following

2. ### Chemistry

Hydrogen Peroxide decomposes to produce oxygen gas and water, What mass of hydrogen peroxide (H2O2) nust decompose to produce 0.77 grams of water?

3. ### Chemistry

The following reaction represents the decomposition of hydrogen peroxide: 2H2O2 -> O2 (g) + 2H2O (l) How many molecules of water are produced from the decomposition of 3.4g of hydrogen peroxide, H2O2? Please help, I got 0.02

4. ### AP Chem

A solution of hydrogen peroxide, H2O2, is titrated with a solution of potassium permanganate, KMnO4. It requires 51.7 mL of 0.145 M KMnO4 to titrate 20.0 g of the solution of hydrogen peroxide. What is the mass percentage of H2O2

1. ### Chemistry

Some hydrogen gas is collected over water at 20.0 Cel. and the levels inside the container is the same. The partial pressure of hydrogen is 742.5 torr. What is the barometric pressure as the time the gas was collected. My answer

2. ### oxidation

In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water, the oxidizing agent is... ? Fe(II) ==> Fe(III) H2O2 ==> H2O. Fe goes from +2 to +3, that is a loss of electrons, so it is

3. ### chemistry

Calculate the mass of solute of hydrogen peroxide in a 35% solution if 450 ml of solution is being used

4. ### Chemistry

Hydrogen peroxide(H2O2) slowly decomposes to form water and oxygen gas. Calculate the mass of Hydrogen peroxide needed to obtain 0.460L of oxygen gas at STP

1. ### Science

Hydrogen peroxide, H2O2, is unstable under certain conditions and decomposes as follows: 2 H2O2 → 2 H2O + O2 ? g 34.00 g 15.98 g What mass of hydrogen peroxide, to the nearest hundredth of a gram, is decomposed in this reaction?

2. ### Chemistry

The density of hydrogen peroxide, H2O2, is 1.45 g/mL. How many molecules of H2O2 are in 0.350 L of hydrogen peroxide? The molar mass of H2O2 is 34.01 g/mol.

3. ### Chemistry

How would I calculate the mass of 20ml of a 3% hydrogen peroxide from a 30% H2O2 solution?

4. ### Chemistry

I have .8ml of 35% by weight hydrogen peroxide. The hydrogen peroxide density is 1.14 g/ml. how many moles of hydrogen peroxide are there?