How many grams of hydrogen would be contained in #4.53 × 10^24# molecules of HCl?

Please write out the conversion factor for me

1 Answer
Mar 28, 2018

#"7.52 g"#

Explanation:

#"1 mol" = 6.022 × 10^23\ "molecules"#

#4.53 × 10^24\ "molecules" = 4.53 × 10^24 cancel"molecules" × "1 mol"/(6.022 × 10^23 cancel"molecules") = "7.52 mol"#

#"1 mol HCl"# contains #"1 g"# hydrogen and #"35.5 g"# chlorine.

#"7.52 mol HCl"# will contain

#7.52 cancel"mol" × "1 g Hydrogen"/(1 cancel"mol") = "7.52 g Hydrogen"#