Anurse needs 525 g of 2.00 % sterile saline solution (nacl). she has two sterile stock solutions of nacl: 5.000% and 0.5000 % by mass, but no sterile water. how much of the 5.000 % and the 0.5000 % solutions he needs to make the required solution? (a) 150 g of the 5.000 % solution and 375 g of the 0.5000 % solution (b) 175 g of the 5.000 % solution and 350 g of the 0.5000 % solution (c) 185 g of the 5.000 % solution and 340 g of the 0.5000 % solution (d) 200 g of the 5.000 % solution and 325 g of the 0.5000 % solution

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned