How many grams of sodium chloride are present in a 0.75 M solution with a volume of 500.0 milliliters?
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Molar mass of sodium chloride (NaCl) = 23 + 35.5 = 58.5 g/mol
0.75M solution means a solution that contains 0.75 moles of NaCl in one litre
1000 ml = 1 litre
∴ 500 ml ≡ 500/1000 = 0.5 litres
Number of moles in 0.5 litres = 0.5 x 0.75 = 0.375
Mass = number of moles x molar mass
mass of NaCl = 0.375 x 58.5
= 21.94 g
0.75M solution means a solution that contains 0.75 moles of NaCl in one litre
1000 ml = 1 litre
∴ 500 ml ≡ 500/1000 = 0.5 litres
Number of moles in 0.5 litres = 0.5 x 0.75 = 0.375
Mass = number of moles x molar mass
mass of NaCl = 0.375 x 58.5
= 21.94 g
Answered by
5
Answer:
Explanation:
Molar mass of sodium chloride (NaCl) = 23 + 35.5 = 58.5 g/mol
0.75M solution means a solution that contains 0.75 moles of NaCl in one litre
1000 ml = 1 litre
∴ 500 ml ≡ 500/1000 = 0.5 litres
Number of moles in 0.5 litres = 0.5 x 0.75 = 0.375
Mass = number of moles x molar mass
mass of NaCl = 0.375 x 58.5
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