Question

A sample of NH3 contains 10.0 grams of nitrogen and 25.00 grams of oxygen. Find its percent composition.

N= 0=

Answer 1

`\%N=28.6\%\\\\\%O=71.4\%`

Step-by-step explanation:

Hello there!

In this case, according to the given information, it is possible to calculate the percent compositions, by dividing the mass of each element by the sum of the masses of the elements as shown below:

`\%N=(m_N)/(m_N+m_O) *100\%\\\\\%O=(m_O)/(m_N+m_O)*100\%`

Thus, we plug in the given masses to obtain:

`\%N=(10.0g)/(10.0g+25.00g) *100\%=28.6\%\\\\\%O=(25.00g)/(10.0g+25.00g)*100\% =71.4\%`

Regards!