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What is the mass of 5 moles H2?
The molar mass of H2 is 2 g/mol. To find the mass of 5 moles of H2, you would multiply the molar mass by the number of moles: 2 g/mol * 5 mol = 10 grams.
How many moles of H2 are there in 49.8 grams of H2?
To find the number of moles of H2 in 49.8 grams, divide the given mass by the molar mass of H2. The molar mass of H2 is approximately 2 g/mol. Thus, 49.8 grams of H2 is equal to 24.9 moles (49.8 g / 2 g/mol = 24.9 mol).
How many grams of H2 in A 31.6ml sample?
To determine the grams of H2 in a 31.6 ml sample, we need to know the pressure, temperature, and molecular weight of H2. By using the ideal gas law (PV=nRT), we can calculate the number of moles of H2 in the sample and then convert it to grams using the molar mass of H2 (2.016 g/mol).
State one way in which molecues of hydregen and molecues of oxygen different?
The molar mas of H2 is 16; the molar mass of O2 is 32.
What happeneds to the mass when mageisum is added to hydrochoric acid?
The mass remains constant during the reaction. HCl + Mg → MgCl + H2
What mass of H2O can be made from 24gO oxygen and 16g H2?
The molar mass of O is 16 g/mol and H is 1 g/mol. From the given masses, we calculate moles: 24 g O / 16 g/mol = 1.5 mol O and 16 g H2 / (2 g/mol) = 8 mol H2. The balanced chemical equation for the formation of water from hydrogen and oxygen is 2H2 + O2 -> 2H2O, so we need twice as many moles of H2 as O2. Hence, 1.5 mol O2 would require 3 mol H2, which is 3/2 * (2 g H2O/mol) = 3 g H2O.
Which element has lowest destiny?
Hydrogen is the element with the lowest density. With the atomic mass of the H atom being 1, the molecular mass of hydrogen gas, H2 is 2. This molar mass is lower than any other element in the periodic table.
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.
What is the mass of 4 moles of hydrogen molecules (H2)?
8.086g
How many grams of H2 are needed to produce 14.84 g of NH3?
To find the grams of H2 needed, we first calculate the moles of NH3 using its molar mass. Then, we use the balanced chemical equation to determine the mole ratio of H2 to NH3. Finally, we convert moles of H2 to grams using its molar mass.
What is the molar mass of gas h2?
The molar mass of hydrogen gas (H2) is approximately 2 grams per mole. This is calculated by adding the atomic masses of two hydrogen atoms (1 gram/mol each) together.
Calculate the number of mole of hydrogen in 37.66gm?
37.66 (g H2) / 2.016 (g/mol H2)= 18.68 mole H2Molar mass of hydrogen: 2.016 (g/mol H2)
