how many moles of o2 are required to react with 2.0 moles h2?
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Notice that the reaction requires 2 moles of hydrogen gas and 1 mole of oxygen gas to produce 2 moles of water.
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We can just as easily read this chemical equation as “two moles of hydrogen react with one mole of oxygen to make two moles of water.” All balanced chemical reactions are balanced in terms of moles.
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The equation says that for every 1O2 , there are 2H2O produced. Therefore, if you have 2.2O2 , you must have 2.2⋅2H2O , or 4.4 moles of H2O .
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There are 6.022×1023 O2 molecules in a mole of O2. Since you have 2 oxygen atoms in one O2 molecule, there are 2×6.022×1023 O atoms in a mole of O2.
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Now, in two moles of H2, 12.044 × 10^(23) molecules are present and in 1 molecule of H2, two H atoms are present.
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The molecular masses of hydrogen, oxygen and water are 2 g/mole, 32 g/mole and 18 g/mole respectively. 2×2=4 g of hydrogen reacts with 1×32=32 g of oxygen to form 2×18=36 g of water.
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Expert Answers info 1 mole of water requires 1 mole of hydrogen (H2) and 0.5 moles of oxygen (O2). This requires 100/18 moles of hydrogen. As the molar mass of hydrogen is 2, it requires 200/18 = 100/9 g of hydrogen. It requires 100/9 g of hydrogen gas and 800/9 g of oxygen gas to make 100 g of water.
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Well, one mole is equal to Avogadro's Number, or 6.02210 x 10^23 particles. Since you are not talking about the amount of oxygen atoms in 3 moles of O2, no extra multiplication is needed to compensate for that. 3 moles x (6.02210 x 10^23) O2 molecules per mole = 1.80663 x 10^24 O2 molecules.
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A mole of oxygen molecules contains 2 moles of oxygen atoms. For elements that exist as molecules, it is best to explicitly state whether molecules or atoms are meant. Thus "1 mole of oxygen molecules" means 6.022 x 1023 O2 molecules, or 2 x 6.022 x 1023 O atoms; "1 mole of oxygen atoms" means 6.022 x 1023 O atoms.
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How many water molecules are produced when 5.2 g O2are reacted? 5.2 g O2* 1 mol O2* 2 mol H2O* 6.02 *1023molecules H2O= 1.96 * 1023molecules H2O32 g O21 mol O21 mol H2O 32.
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Assuming that the gas is at standard temperature and pressure (STP), one mole of any gas occupies 22.4 L . This means the number of moles of O2 is 222.4=0.089 mol .
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Reaction of hydrocarbon with oxygen is called combustion reaction. Complete combustion reaction of hydrocarbon produce CO2 and H2O. so based on the equation, each mol of C4H10 need 6.5 moles of O2 to be completely reacted.
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Explanation: Know that one mole of any gas at STP takes up 22.4 liters. So 2.4 L of hydrogen is 0.107142857molsH2 .
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1 mole of oxygen reacts with 2 moles of carbon to produce 2 moles of CO. Now 0.245g of CO = 0.245/28 = 0.0088 mole and this will require 0.0088/2 = 0.0044 mole of oxygen. Every mole of oxygen contains 6.022 x 10^23 molecules of oxygen.
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In one mole of H2 there are 6.023*10^23. So in two moles there will be 12.046*10^23 molecules of H2.
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One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.
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If a mole of hydrogen gas (H2) contains 6.02×1023 6.02 × 10 23 molecules, how many molecules are there in 10.0 moles of hydrogen gas?