how many grams of NaCl are needed to prepare a solution of 500 mL if it's Molarity has to be 0.20
Molarity= number of moles/ volume in L
0.20 M= number of moles/ 0.5 L
Number of moles= 0.2 M* 0.5 L = 0.1 moles
Mass of NaCl= number of moles* molar mass
Mass of NaCl= 0.1 mol* 58.5 g. Mol-1 = 5.85 g
how many grams of NaCl are needed to prepare a solution of 500 mL if it's...
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