How much calcium hydroxide (#Ca(OH)_2#), in grams, is needed much produce 1.5 L of a 0.25M solution?

1 Answer
Apr 8, 2017

Answer:

27.75 gm

Explanation:

molarity is defined as = moles of solute / litres of solution

to produce 1.5 L of 0.25 M solution ,
moles of calcium hydroxide needed are = # 0.25*1.5 #
= 0.375 mol
now amount of calcium hydroxide in grams needed can be calculated by multiplying moles by molar mass : # 0.375*74 #
= 27.75 gm