Calculate the molarity of pure water (d = 1 g/L)

Question

Calculate the molarity of pure water (d = 1 g/L) (A) 555 M (B) 5.55 M (C) 55.5 M (D) None

Tardigrade Admin · Accepted Answer

Consider 1000 mL of water Mass of 1000 mL of water =1000× 1=1000 grams Number of moles of water =(1000/18)=55.5 Molarity = (textNo. of moles of water/ textVolume in litre) =(55.5/1) =55.5 M

Q. Calculate the molarity of pure water $(d = 1 g / L)$

$555 M$

$5.55 M$

$55.5 M$

None

Consider 1000 mL of water
Mass of 1000 mL of water $= 1000 \times 1 = 1000$ grams
Number of moles of water $= \frac{1000}{18} = 55.5$
Molarity $= \frac{t e x t N o . o f m o l eso f w a t er}{Volume in litre}$
$= \frac{55.5}{1}$
$= 55.5 M$

Q. Calculate the molarity of pure water (d=1g/L)

555M

5.55M

55.5M