What is the percentage composition of each element in dinitrogen monoxide, n2o?

a. 58.32% n; 41.68% o
b. 60.55% n; 39.45% o
c. 63.64% n; 36.36% o
d. 62.66% n; 37.34% o

What is the percentage of hydrogen in nitrogen trihydride

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.