chemistry
how many moles of nh3 are produced from 16 grams of n2 ?
CHEM-PLEASE HELP
1- Calculate the equilibrium concentration for H+, HSO4- and SO4^2- , given a .150M H2SO4 solution. the Ka for HSO4- is 1.20*10^-2
CHEM HELP PLEASE
1- the vinegar soltion sold in the store is about 5% acetic acid. Assuming that the solution has a density of 1.01 g/mL, calculate the pH of vinegar.
physics
Q 4_1? 4_2? 4_3? plz help.
physics
problem E2_2 Strain, boundary conditions, displacement and elongation: Part I Plz help.
stoichiometry
what is the mole ratio of oxygen to water
Physics
plz help problem 4_1?
Physics
thanks regz.
Physics
E2_2: E2_3: PLZ help
Physics
E2_2: E2_3: PLZ help
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