# Question #e4858

##### 1 Answer

Balanced equation:

as per the equation , one mole of

I can write this as ( 1 mol

I have started with 5 g of Propane. In terms of moles # of moles of propane = mass of propane / molar mass of propane

moles = (5g / 44 g

moles of propane = 0.114 moles.

0.114 moles of

I can write this as ( 0.114 mol

The two ratios are equal ( for making a cake I need two eggs and 3 cups of sugar.For making three such cakes , I will need 6 eggs and 9 cups of sugar, the ratio of sugar to flour will remain the same , it will not change with the # of cakes I want to make, but what will definitely change is the amount of the ingredients, but the ratio will stay the same.) Using the same logic the two ratios are equal.

( 1 mol

Cross multiply

1 . x = 4 x 0.114

x = 0.456moles

0.114 moles ( or 5g ) of

one mole of water has mass 18 g /

so the amount of water actually obtained was 0.80 x 8.208 = 6.556 g.