What is the approximate mass percentage of oxygen in H₂O?
H₂O में oxygen का mass percentage लगभग कितना है?
Show answer and explanation
Correct Answer
D. 88.89% / 88.89%
Explanation
Step 1: In percentage composition divide element mass by compound mass. Step 2: H₂O mass is 18 and oxygen mass is 16 so 16/18×100 = 88.89%. Step 3: Always use total molar mass for percentage.
Step 1: Percentage composition में element mass को compound mass से divide करते हैं। Step 2: H₂O का mass 18 और oxygen का mass 16 है इसलिए 16/18×100 = 88.89%। Step 3: Percent निकालते समय कुल molar mass जरूर लें।
