The molecular mass for O2(g) is 32.0. By experiment a student measured the mass of O2(g)
to be 28.0. What is the percent error in the student's
result?
A) 1.25%
C) 12.5%
B) 1.43%
D) 14.3%

What is the formula for the molecular compound nitrogen monoxide

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.

Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+