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How many mole of h2 will be produced from the complete reaction of 20 mole of al?
20 moles of Al will react with water to form 60 moles of H2 and 30 moles of O2, because of the stoichiometry 2:1 in getting H2 en O2 from water, and Al needing an oxidationstate of 3+, so 1 mole is oxidized by 3 moles of H2O.
What is the mass of hydrogen gas released from 3.70 g of aluminum metal and hydrochloric acid 2 Al(s) plus 6 HCl(aq) 2 AlCl3(aq) plus 3 H2(g)?
1. Write the balanced equation: 2Al(s) + 6HCl(aq) ==> 2AlCl3(aq) + 3H2(g)2. Convert 3.70 g Al to moles of Al: 3.70 g x 1 mol/26.98 g 3. Use stoichiometric ratios in balanced equation to find moles H2 produced: answer from step 2 (moles Al) x 3 moles H2/2 moles Al = moles H2 produced 4. Convert moles H2 produced found in step 3 to grams H2 using molar mass of H2
How many moles K are needed to react with 15 moles of Cl2?
H2 +Cl2---------------->2HCl Since H2 and Cl2 react in 1:1 mole ratio the number of moles of H2 reacting is equal to the number of moles of Cl2 which is equal to 0.213
How many moles of H2 are there if 0.845 L of H2 is collected at 25 degrees Celsius and 782 mmHg?
To find the number of moles of H2, we need to use the ideal gas law equation: PV = nRT. Convert 0.845 L to 0.845/22.4 = 0.0377 moles. Convert 782 mmHg to atm by dividing by 760: 782/760 = 1.03 atm. Plug in the values and solve for n: n = (1.03 atm * 0.0377 moles) / (0.0821 Latm/(molK) * 298 K) ≈ 0.0016 moles of H2.
How many moles of H2 are needed to produce 12.36 of NH3?
You can make a simple balance. There are (12.36 * 3) moles of H You have 2*H to form H2. So take the total from ammonia and divide by two to find the moles of H2 required.
calculate the number of moles in H2 molecules in 4g H2?
2 moles.
How many molecules (not moles) of NH3 are produced from 5.95104 g of H2?
To find the number of molecules produced, first calculate the number of moles of H2 using its molar mass. Then, use the balanced chemical equation to relate the number of moles of H2 to NH3. Finally, convert the moles of NH3 to molecules using Avogadro's number, which is 6.022 x 10^23 molecules/mol.
How many mole of h2 will be produced from the complete reaction of 20 mole of al?
20 moles of Al will react with water to form 60 moles of H2 and 30 moles of O2, because of the stoichiometry 2:1 in getting H2 en O2 from water, and Al needing an oxidationstate of 3+, so 1 mole is oxidized by 3 moles of H2O.
What is the mass of hydrogen gas released from 3.70 g of aluminum metal and hydrochloric acid 2 Al(s) plus 6 HCl(aq) 2 AlCl3(aq) plus 3 H2(g)?
1. Write the balanced equation: 2Al(s) + 6HCl(aq) ==> 2AlCl3(aq) + 3H2(g)2. Convert 3.70 g Al to moles of Al: 3.70 g x 1 mol/26.98 g 3. Use stoichiometric ratios in balanced equation to find moles H2 produced: answer from step 2 (moles Al) x 3 moles H2/2 moles Al = moles H2 produced 4. Convert moles H2 produced found in step 3 to grams H2 using molar mass of H2
Find the number of moles of h2 in 1420mL H2 gas?
To find the number of moles of H2 gas in 1420 mL, you need to use the ideal gas law. Given that the molar volume of gas at STP is approximately 22.4 L, you can convert 1420 mL to liters (1420 mL = 1.42 L) and then calculate the number of moles using the formula n = V/22.4, where n is the number of moles and V is the volume in liters.
How many molecules of H2(g) are there in a 21.25 gram sample?
To calculate the number of molecules, you first need to determine the number of moles of H2 in the 21.25 gram sample using the molar mass of H2 (2 grams/mol). Then, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules.
How many moles K are needed to react with 15 moles of Cl2?
H2 +Cl2---------------->2HCl Since H2 and Cl2 react in 1:1 mole ratio the number of moles of H2 reacting is equal to the number of moles of Cl2 which is equal to 0.213
How many molecules (not moles) of NH3 are produced from 5.69104 g of H2?
The reaction would be H2 + 3N2 ==>2NH3moles H2 used = 5.69104 g x 1 mole/2.00 = 2.84552 moles H2moles NH3 produced (assuming N2 is NOT limiting) = 2 moles NH3/mole H2 x 2.84552 moles H2 = 5.69104 moles NH3 producedMolecules of NH3 produced = 5.69104 moles x 6.02x10^23 molecules/mole = 3.4x10^24 molecules
How many moles of H2 are there if 0.845 L of H2 is collected at 25 degrees Celsius and 782 mmHg?
To find the number of moles of H2, we need to use the ideal gas law equation: PV = nRT. Convert 0.845 L to 0.845/22.4 = 0.0377 moles. Convert 782 mmHg to atm by dividing by 760: 782/760 = 1.03 atm. Plug in the values and solve for n: n = (1.03 atm * 0.0377 moles) / (0.0821 Latm/(molK) * 298 K) ≈ 0.0016 moles of H2.
How many moles of molecules are there in 40.5 g of H2?
To determine the number of moles in 40.5 g of H2, first find the molar mass of H2, which is 2 grams per mole. Next, divide the given mass by the molar mass to find the number of moles. In this case, 40.5 g / 2 g/mol = 20.25 moles of H2.
How many moles of H2 are needed to produce 12.36 of NH3?
You can make a simple balance. There are (12.36 * 3) moles of H You have 2*H to form H2. So take the total from ammonia and divide by two to find the moles of H2 required.
How many moles of hydrogen gas contained in 9.03x1023?
Given/Known:1mole of H2 = 2.01588g H21mole of H2 = 6.022 x 1023 molecules H21) Convert molecules of H2 to moles of H2 by doing the following calculation.9.4 x 1025 molecules H2 x (1mol H2/6.022 x 1023 molecules H2) = 156mol H22) Convert the moles of H2 to mass in grams of H2.156mol H2 x (2.01588g H2/1mol H2) = 314g H2
