Respuesta :

Answer:

.018 M

Explanation:

grams/MM=ans./volume(L) = M

4/58.45=ans./3.8=.018 M

The molarity of 4g of NaCl in 3,800 mL of solution is 0.018M.

HOW TO CALCULATE MOLARITY:

  • The molarity of a solution can be calculated by dividing the number of moles by its volume. That is;

  • molarity (M) = no. of moles (mol) ÷ volume (L)

  • no. of moles = 4g ÷ 58.45g/mol = 0.068 mol

  • Molarity = 0.068mol ÷ 3.8L

  • Molarity = 0.018M

  • Therefore, the molarity of 4g of NaCl in 3,800 mL of solution is 0.018M.

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