calculate the molar concentration a solution containing 3.0 moles of nacl in 1405 milliliters of water.
calculate the molar concentration a solution containing 3.0 moles of nacl in 1405 milliliters of water.
Answer
Explanation:
Step1: Convert volume to liters
Since (1\space L = 1000\space mL), then (V=1405\space mL=\frac{1405}{1000}\space L = 1.405\space L)
Step2: Use molarity formula
Molarity (M=\frac{n}{V}), where (n = 3.0\space mol) (moles of solute) and (V = 1.405\space L) (volume of solution). So (M=\frac{3.0\space mol}{1.405\space L}\approx2.135\space mol/L)
Answer:
(2.14\space molar) (rounded to two decimal places)