For the titration of 45.0 ml of 0.350 m nh3 with 0.500 m hcl at 25 °c, determine the relative ph at each of these points.
(a) before the addition of any hcl
(b) after 18.0 ml of hcl has been added
(c) after 33.0 ml of hcl has been added

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

Helium decays to form lithium. which equation correctly describes this decay?

Salt in oceans comes from and of rocks