A compound contain oxygen ; carbon and sodium in the Ratio 12:7:5. If the weight of Oxygen is 15g in the compound What will be weight of compound
Answers
Let,
Weight of oxygen in compound = 12 x
Weight of carbon in compound = 7 x
Weight of sodium in compound = 5 x
In the question, it is already given that the weight of oxygen in the compound is 15 g , so 12 x should be equal to 15 g as both are the weights of oxygen in the compound.
Therefore,
15 g = 12 x
15 / 12 g = x
5 / 4 g = x ---- : ( 1 )
Weight of the compound will be sum of the weight of the elements present in it, so weight of compound = weight of oxygen + weight of carbon + weight of sodium ⇒ 12 x + 7 x + 5 x = x ( 12 + 7 + 5 ) = 24 x
Weight of compound = 24 x
Putting the value of x from ( 1 )
Weight of the compound = 24 × ( 5 / 4 ) g
= 6 × 5 g
= 30 g
Thus,
Weight of the compound is 30 g.