Correct Answer: Option A

Explanation

The two numbers must be expressed in the same unit. To convert 495g to kg, it will be divided by 1000

  495g = \(\frac{495}{1000}\)

  = 0.495kg

  To express in percentage, 0.495 will be divided by 16.5 and then multiplied by 100

  % will be added to the answer \(\frac{0.4950}{16.5}\) x 100

  = 3%

There is an explanation video available below.

• If 350cm of a gas at stp has a mass of 0.3g what is the molar mass? Answer this

  2 Answers   ·   Chemistry   ·   4 hours ago
• name the elements which does not contain all the three particles in it's atom? Answer this

  1 Answers   ·   1 hour ago
• what are the subjects am going to write if I want to study gynecology? Answer this

  0 Answers   ·   1 hour ago