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hydrogen chloride = H+1, Cl-1 = HCl

H = 1.008

Cl = 35.453

HCl = 36.458 g/mol

21.1 g x 1 mol HCl/36.458g = .579 mol HCl

The ions of hydrogen chloride balance out so the formula is HCl. You add the atomic weights of the individual elements to get a grams/mole for the molecule HCl. You take the information that was given, 21.1g of HCl, and multiply it by the fact that 1 mole of HCl is 36.458g. Grams cross out and you're left with 21.1 x 1 mol / 36.458 = .579 mol. This is how many moles are in 21.1g of HCl.

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How many chlorine atoms are present for every atom in a hydrogen chloride molecule?

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How many mols of NaCl are present in 1 liter of a 0.1M solution of sodium chloride?

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How many moles of hydrogen chloride can be produced from 0.490 grams of Hydrogen and 50.0 grams of chlorine?

The atomic mass of hydrogen is 1.008 and that for chlorine is 35.45. The moles of hydrogen available are therefore 0.490/1.008 = 0.486 and the moles of chlorine available, 50/35.45, are greater than 1. Each molecule of hydrogen chloride requires one atom each of chlorine and hydrogen. Therefore, with the specified conditions, hydrogen is stoichiometrically limiting, and 0.486 moles of HCl can be made.


How many moles of sodium chloride solute are in 155 grams of an 85.5 percent by mass solution?

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How many mols of NaCl are present in 1 liter of a 0.1M solution of sodium chloride?

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How many moles of hydrogen chloride acid are in 3.45g?

To find the number of moles of hydrogen chloride in 3.45g, you need to divide the mass by the molar mass of HCl. The molar mass of HCl is approximately 36.46 g/mol. So, 3.45g / 36.46 g/mol = 0.0945 moles.


How many grams of hydrogen chloride can be produced from 0.490 g of hydrogen and 50.0 g of chlorine?

The Atomic Mass of hydrogen is 1.008 and that for chlorine is 35.45. The moles of hydrogen available are therefore 0.490/1.008 = 0.486 and the moles of chlorine available, 50/35.45, are greater than 1. Each molecule of hydrogen chloride requires one atom each of chlorine and hydrogen. Therefore, with the specified conditions, hydrogen is stoichiometrically limiting, and 0.486 moles of HCl can be made.


How many moles of hydrogen chloride can be produced from 0.490 grams of Hydrogen and 50.0 grams of chlorine?

The atomic mass of hydrogen is 1.008 and that for chlorine is 35.45. The moles of hydrogen available are therefore 0.490/1.008 = 0.486 and the moles of chlorine available, 50/35.45, are greater than 1. Each molecule of hydrogen chloride requires one atom each of chlorine and hydrogen. Therefore, with the specified conditions, hydrogen is stoichiometrically limiting, and 0.486 moles of HCl can be made.


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The answer is 0,175 moles.