Astudent wants to prepare 250.0 ml of 0.10 m nacl solution. which procedure is most appropriate? (formula molar mass of nacl = 58.4 g/mol)a) add 5.84 g of nacl to 250. ml of h2ob) add 1.46 g of nacl to 250. ml of h2oc) dissolve 5.84 g of nacl in 50 ml of h2o and dilute to 250. mld) dissolve 1.46 g of nacl in 50 ml of h2o and dilute to 250. ml

The correct answer is option B, that is, add 1.46 grams of NaCl to 250 milliliters of H₂O.

First there is a need to find the moles of NaCl in 250 ml of 0.10 M NaCl,

Moles of NaCl = molarity × volume = 0.10 M × (250/1000L) = 0.025 mol

The corresponding mass of NaCl is,

Mass of NaCl = moles × molar mass = 0.025 mol × 58.5 g/mol = 1.46 g

Thus, there is a need to dissolve 1.46 grams of NaCl solid into 50 ml of H₂O and dilute to 250 ml.

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