Question

calculate no of moles of calcium hydroxide of 4.5 L of 2M solution ​

Answer 1

Answer:

plz rank mark bhad do

Explanation:

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

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