7. What is the molarity, M, of the dilution solution of KBr, given: a. Molarity of the stock solution is 0.500 M KBr
b. Volume of the stock solution is 20.00 mL
c. Volume of the dilute solution is 100.00 mL

22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!