When 50cm³ of a saturated solution of sugar (molar mass 342.0g) at 40^oC was evaporated to dryness, 34.2g of dry solid was obtained. The solubility of sugar at 40^oC is

Jambjay000

7 years ago

Solubility is thesame as molarity, both measured in mol/dm³
...solubility=number of moles / volume(dm³)
= 34.2/342 divided by 50/1000
0.1 / 0.05
2mol/dm³

teebreezy101

7 years ago

50cm3 produced 34.2g
no of moles produced=34.2/342=0.1 mole
1000cm3 will produce: 1000/50 *0.1= 2 moles/dm3

Doclord

3 years ago

1000 is constant when dealing with measuring volumes

Anela

1 year ago

m=34.2
mm= 342
vol.=50cm³

sol.= m/mm × 1000/vol

= 34.2/342 × 1000/50
= 34200/17100
= 2(ANS)

THE 1000 IN THE FORMULA IS TO CONVERT THE VOLUME FROM "cm to dm³"

Hilal001

4 years ago

pls where did u get the 1000