Question

how many gram of calcium hydroxide are needed to make 500ml of 0.125M solution​

Answer 1

Answer:

please mark me as brainliest and follow me

Explanation:

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