Calculate the pH of a solution that is 0.20 M in sodium hypobromite and 0.10 M in hypobromous acid. (HOBr Ka = 2.5 x 10-9)

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?

What is the polyatamic ion of borate

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?