The theoretical yield of zinc oxide in a reaction is 486 g. What is the percent yield if 399 g is produced?
A. 122%
B. 82.1%
C. 29.6%
O D. 4.93%

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m

The name for subatomic particles in an atom is called a proton