How many atoms of hydrogen-1 are in a 1.007-g sample?

10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

How do scientists think that gravity affected the formation of our solar system?