A17.0 g sample of ammonia contains 14.0 g of nitrogen and 3.0 g of hydrogen . what is the mass % of hydrogen in ammonia

% age of hydrogen = 17.65%

Explanation:

Given data:

Mass of ammonia = 17.0 g

Mass of hydrogen = 3.0 g

Mass of nitrogen = 14.0 g

Percentage of hydrogen = ?

Solution:

Formula:

% age of hydrogen = mass of hydrogen / mass of ammonia × 100

Now we will put the values:

% age of hydrogen = 3.0 / 17.0 × 100

% age of hydrogen = 17.65%

For oxygen:

% age of hydrogen = mass of hydrogen / mass of ammonia × 100

Now we will put the values:

% age of hydrogen = 14/ 17.0 × 100

% age of hydrogen = 82.35%

Total percentage =  17.65% + 82.35%

Total percentage = 100%

the answer is 0.42 is that is an option. this question provides no info