Question

What is the difference in mass (in grams) of Nitric acid and water, if their mass ratio is $3:8$ in total of $330$ grams of acidic solution mixture?

• A. $150$
• B. $90$
• C. $240$
• D. $140$

Answer 1

Answer: (A)

$150$

Given the difference in mass (in grams ) of Nitric acid and water ratio $3:8$

Then total mass of mixture as per ratio $=3+8=11$

But given the mass total mixture solution is $330$ grams

As per ratio difference in mass of nitric acid and water $=8-3=5$

So difference in mass of nitric acid and water $=$ $\frac{5}{11}\times 330=150$