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What mass of NaCl is required to dissolve 100 g NaCl to prepare a 1.50 m solution?
Wiki User
∙ 10y ago
Remember the moles equations.
moles = mass(g) / Mr = [conc] x vol(mL) / 1000
Hence
mass(g) = [conc] x vol(mL) x Mr / 1000 (be algebraic rearragnement)
conc = 0.05 M
Mr = 23 + 35.5 = 58.5
vol(mL) = mass (g) = 150 g =150 mL (NB THis is the standard for water at STP)
Substituting
mas9g) = 0.05 x 58.5 x 150 / 1000
mass(g) = 0.43875 g ~ 0.44 g
lenpollock
Wiki User
∙ 9y agoThe term molecule is not adequate for an ionic compound; correct is formula unit.
150 g NaCl contain the equivalent of 2,5667 formula units.
Wiki User
∙ 10y agoTo prepare a 1,5 M sodium chloride solution we need 87,659 g NaCl.
Wiki User
∙ 10y agoThe answer is 87,66 g NaCl.
Wiki User
∙ 9y agoThe answer is 0,44 g NaCl.
Wiki User
∙ 7y agoThis mass is 0,438 g.
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