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Mass of hydrogen = 1 g/mol
Mass of oxygen = 16 g/mol
There are 2 hydrogen in H2O2 and 2 oxygen in H202, so
(1x2) + (16x2) = 34 g/mol
Wiki User
∙ 15y ago
Anonymous
Determine the molar mass of H2O2 (the solute) in a 1.5M aqueous solution of H2O2
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What if a 50.0 mL o a 0.500 M solution of H2O2 is decomposed what mass of O2 will be produced?
The chemical equation for the decomposition of H2O2 is 2 H2O2 -> 2 H2O + O2. This shows that two moles of H2O2 are required to produce each mole of O2. By definition, a 0.500 M solution of H2O2 contains 0.500 moles of H2O2 in each liter of solution. Solutions are always homogeneous; therefore, 50,0 mL of such a solution will contain (0.500)(50.0/1000) or 0.0250 moles of H2O2. As noted in the first paragraph, this will produce half as many, or 0.0125, moles of O2. The gram molar mass of O2 is twice the gram atomic mass of oxygen, or 31.9988. Therefore, decomposition of this amount of H2O2 will produce 31.9988 X 0.0125 or 0.400 gram of O2, to the justified number of significant digits.
What is the molarity of a 3.0 percent hydrogen peroxide H2O2 aqueous solution when the density is essentially 1.0g over mL?
If the density is 1.0 g/ml, one liter of the solution will weigh 1000 grams. 3.0 % of this mass or 30 grams of it is constituted of H2O2. The molar mass of H2O2 is 2 (1.008 + 15.999) = 34.014. The molarity of this solution is therefore 30/34.014 = 0.88, to the justified number of significant digits.
A certain amount of hydrogen peroxide was dissolved in 100 ml of water and then titrated with 1.68m kmno4 how much h2o2 was dissolved if the titration required 22.3 ml of the kmno4 solution?
Mass of H2O2 = 0.637 g
How much water would I add to a 50percent solution of H2O2 to make 500 ml of 3percent H2O2?
30 ml to 470 ml of water
How do calculate molarity example being calculate molarity of 6.5g of hcl solution per liter solution?
All you have to do is convert the 6.5 g HCl solution into moles, and then plug that value into the molarity formula. If you need help, here are the formulas: # mol = (mass of substance)/(molar mass) - the molar mass is just the molecular mass of the substance expressed in grams :) Molarity (M) = (# mol solute)/(# L solution) - the solute, in this case, is the HCl, and the solution is just one, based on your question Happy Calculating!!!
What if a 50.0 mL o a 0.500 M solution of H2O2 is decomposed what mass of O2 will be produced?
The chemical equation for the decomposition of H2O2 is 2 H2O2 -> 2 H2O + O2. This shows that two moles of H2O2 are required to produce each mole of O2. By definition, a 0.500 M solution of H2O2 contains 0.500 moles of H2O2 in each liter of solution. Solutions are always homogeneous; therefore, 50,0 mL of such a solution will contain (0.500)(50.0/1000) or 0.0250 moles of H2O2. As noted in the first paragraph, this will produce half as many, or 0.0125, moles of O2. The gram molar mass of O2 is twice the gram atomic mass of oxygen, or 31.9988. Therefore, decomposition of this amount of H2O2 will produce 31.9988 X 0.0125 or 0.400 gram of O2, to the justified number of significant digits.
What is the molarity of a 3.0 percent hydrogen peroxide H2O2 aqueous solution when the density is essentially 1.0g over mL?
If the density is 1.0 g/ml, one liter of the solution will weigh 1000 grams. 3.0 % of this mass or 30 grams of it is constituted of H2O2. The molar mass of H2O2 is 2 (1.008 + 15.999) = 34.014. The molarity of this solution is therefore 30/34.014 = 0.88, to the justified number of significant digits.
A certain amount of hydrogen peroxide was dissolved in 100 ml of water and then titrated with 1.68m kmno4 how much h2o2 was dissolved if the titration required 22.3 ml of the kmno4 solution?
Mass of H2O2 = 0.637 g
What is pirana solution?
30% h2o2+h2so4
What is the balanced equation for potassium iodide and H2O2 solution?
H2O2 + 2 KI --> 2 KOH + I2
Calculate the mole fraction of benzene in solution containing 30 percent by mass in carbon tetrachloride?
calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetra chlorid
H2o2 used to give stress?
H2o2 is used to give stress. The is also called hydrogen peroxide solution.
Calculate the mass (in grams) of sodium sulfide that is needed to make 360ml of a 0.50 mol/L solution?
Calculate the mass (in grams) of sodium sulfide that is needed to make 360ml of a 0.50 mol/L solution
A solution of hydrogen peroxide is heated?
H2o2 --> h20 + o2
HOW DO I CALCULATE THE PERCENTAGE BY MASS OF ETHANOL IN A MIXTURE?
- making a chemical analysis of the solution
How do you calculate the kinetic equation when H2O2 exist in environment?
Not enough information
What mass is required to make 2N solution of Na2co3 calculate mass of sodim carbonate which will be dissolved in 500 ccc?
50ml
