Question

Nitrogen monoxide (NO) is a bioactive molecule in blood. Low NO concentrations cause respiratory distress and the formation of blood clots. Doctors prescribe nitroglycerin, C3H5N 309. and isoamyl nitrate. (CH3)2CHCH2CH20N02, to increase NO. If each compound releases one molecule of NO per atom of N. calculate the mass percent of NO in each medicine.

Answer 1

Answer:

Mass percentage of NO in nitroglycerin is 39.63%.

Mass percent of NO in  isoamyl nitrate is 22.55\%.

Explanation:

Molar mas of nitroglycerin ,$C_3H_5N_3O_9=227.08 g/mol$

Molar mas of isoamyl nitrate,$C_5H_{11}NO_3=117.15 g/mol$

Given: If each compound releases one molecule of NO per atom of N.

1)In nitroglycerin, there are 3 nitrogen atoms. then number of NO will be :

3 × 1= 3 NO molecules

Mass percent of NO in $C_3H_5N_3O_9$

$\% NO=\frac{3\times (14 g/mol+16 g/mol)}{227.08 g/mol}=39.63\%$

2)In  isoamyl nitrate. , there are 1 nitrogen atom. then number of NO will be :

1 × 1= 3 NO molecules

Mass percent of NO in $C_3H_5N_3O_9$

$\% NO=\frac{1\times (14 g/mol+16 g/mol)}{133 g/mol}=22.55\%$