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The chemical equation for hydrogen gas and oxygen gas combining to form water is as follows: 2H2 (g) + O2 (g) ---> 2H2O (l). This means that for every 1 mole of oxygen gas reacting, two moles of hydrogen gas are needed. So if 0.50 moles of oxygen gas react to form one mole of water, then one mole of hydrogen gas was used.

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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.


How many bond pairs electrons H2O2?

In H2O2, there are two O-H bonds and two O-O bonds, resulting in a total of four bond pairs of electrons.


How many moles of O in CuSO4?

moles of what?


What is the formula of h2o2 after it is decomposed?

H2O2 is dissociate into water and oxygen.So fomula is H2O+O


How many moles of N are in 0.161g of N2O?

There are 0.003659 N2O moles. So there are o.007318 moles of N.


Is H2O2 a chemical compound or an element?

H2O2 is a chemcial COMpound. It is formed from atoms of the elements oxygen and hydrogen combining together. H2O2 is hydrogen peroxide. Structure is H-O-O-H Compare with H2O is water . Structure is H-O-H


What is the molecular formula of a substance that decomposes into 1.33 g of H and 21.3 g of O and was found to have a molar mass of 34.1 g?

The molar mass of the substance is 34.1 g/mol. Given that it decomposes into 1.33 g of H and 21.3 g of O, we can calculate the moles of each element (H and O). From there, we can determine the molecular formula as H₂O (water) because the ratio of moles of H to O corresponds to that in water.


How many moles of o are in 8.25g of o?

0.515 moles


How many moles of oxygen would be needed to react with 4.52 moles of CO?

To determine the number of moles of oxygen needed to react with 4.52 moles of carbon monoxide (CO), we refer to the balanced chemical equation for the reaction: 2 CO + O₂ → 2 CO₂. From the equation, 2 moles of CO react with 1 mole of O₂. Therefore, to find the moles of O₂ required, we can use the ratio: (4.52 moles CO) × (1 mole O₂ / 2 moles CO) = 2.26 moles of O₂. Thus, 2.26 moles of oxygen are needed to react with 4.52 moles of CO.


HOW MANY MOLES OF O2 ARE NEEDED TO MAKE 3 MOLE OF WATER?

3 moles of O, so that must be 6 moles of O2


How many moles of electrons are gained when three moles of oxygen atoms are reduced to oxide ions?

When three moles of oxygen atoms (O) are reduced to oxide ions (O²⁻), each oxygen atom gains two electrons. Therefore, for three moles of oxygen atoms, the total number of moles of electrons gained is 3 moles of O × 2 moles of electrons per mole of O, which equals 6 moles of electrons. Thus, 6 moles of electrons are gained in this reduction process.


How many moles are in Li2O?

1 mole of Li₂O contains 2 moles of lithium (Li) atoms and 1 mole of oxygen (O) atoms. Therefore, in 1 mole of Li₂O, there are a total of 3 moles of atoms.