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How many moles of hydrogen atoms are present in a sample that contains 3.64 moles of water, H2O?

answer = ___________ mol H

How many moles of H2O molecules are present in a sample that contains 5.54 moles of hydrogen atoms?

answer = ___________ mol H2O

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07:08

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How many molecules of water are there in a $10.0-\mathrm{g}$ sample of water? How many hydrogen atoms are there in this sample?

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One mole of water molecules consists of 1 mole of oxygen $(16 \mathrm{g})$ and 2 moles of hydrogen $(1 \mathrm{g} \text { each }) .$ You combine 1 kg of oxygen with 1 kg of hydrogen to make water. How many moles of water did you make? What is the mass of the water? What is the mass of the element that is left over?

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(I) How many moles of water are there in 1.000 $\mathrm{L}$ ? How many molecules?

Transcript

Hello everyone. So in this question we have been given 3.64 moles of water in a sample. And we need to calculate what will be the amount of moles of hydrogen atoms present in that sample. And also we have 5.54 moles of hydrogen atoms in a sample and we need to calculate the number of corresponding molecules of water in it. So for the first part we have that for each molecule of water. You know that for each molecular of water we have two hydrogen atoms in it. All right, two items of hydrogen. So For one mole of water molecules We shall have two moles of hydrogen items. So We have been given 3.64 moles of water. So for that we will have Two times the quantity that is 2.2, and it will be equal to 7.28 moles of hydrogen atoms. Therefore for the first part we have the answer that for 3.64 moles of water, we have 7.28 moles of hydrogen atoms. For the next part we can write that for one mole of hydrogen atoms, it contains aggregated number of…

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