0
249.72 g/mol
Christop Hodkiewicz
Wiki User
∙ 13y agomass = moles x relative molecular mass
mass = 5 x (2+16)
mass = 5 x 18
mass = 90g
while n= number of moles; m= mass; <and> M= molar mass; the mass of 5.0 mol H2O is:
m = n x M
= 5 x [(H x 2) + (O x 1)]
= 5 x [(1 x 2) + (16 x 1)]
= 5 x (2+16)
= 5 x 18
= 90
.: the mass of 5.0 mol H2O is 90g
Wiki User
∙ 8y agoThe mass in grams of 3 moles of water molecules is 48 g.
Wiki User
∙ 13y ago5.0 mol × (18.0 g/mol) = 90. grams H2O
Wiki User
∙ 8y agoThis mass is 56 g for H2O.
Wiki User
∙ 8y agoThis mass is 54 g.
Wiki User
∙ 7y agoThis mass is 54 g,
Wiki User
∙ 14y ago90g
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