Drake is back in the lab doing titrations, but he's tired from his sold out post- pandemic world tour and overdid it! He titrated 25.0 mL sample of 0.140 M of the
. weak base CH3NH2 with 100. mL 0.250 M of the strong acid HBr, which is way past
the equivalence point. Note these values are different than they were in the
previous question!
What is the pH of the solution?

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

How many grams of iron can be made from 16.5 grams of fe2o3

How many moles are in 7.2 x 10^23 carbon molecules?