X has valency 3 and oxide ion has valency 2
So, the formula of oxide will be X
2
O
3
1 is 7 and a half!
I hope this helps you!
The mass percentage of hydrogen in 300 g of sucrose is 9.75%
From the question given above, we were told that:
2 g of sucrose contains 6.50% (ie 0.065) hydrogen
Thus, we can obtain the percentage of hydrogen in 300 g of sucrose as follow:
2 g of sucrose contains 0.065 hydrogen.
Therefore,
300 g of sucrose will contain =
= 9.75% of Hydrogen.
Thus, 300 g of sucrose contain 9.75% of Hydrogen.
Learn more: brainly.com/question/16559402