% problems
How many g of KCl and water are present in 225g of 8.00% m/m solution of KCl?
18 g of KCl and 207 g of water
Calculate the volume in mL of 3.5% solution prepared by diluting 45 mL of 7.0% KOH solution
90mL
HCl + H2O -> H3O+ + Cl-
Acid = HCl and Base = H2O
Cu(OH)2
Copper (II) Hydroxide
Nitric Acid
HNO3
How many mL of 5.46% v/v propyl alcohol solution are needed to get 23.6 mL of propyl added?
432 mL of solution
What is the final concentration of a solution prepared by diluting 50.0 mL of 8.00% m/v solution of NaOH to 200. mL?
Final Concentration is 2.00%
NH3 + H2O <-> NH4+ +OH-
Acid: H2O and Base: NH3
HBr
Hydrobromic Acid
Aluminum Hydroxide
Al(OH)3
Calculate %m/V for a 750mL CaCl2 solution prepared by dissolving 74.3 g of CaCl2
9,91% m/v CaCl2
Calculate initial molarity if 75 mL of initial solution is diluted to 0.450 L with molarity of 2.15 M
Initial molarity is 12.9 M
HCO2- + H2O -> HCOOH + OH-
Acid: H2O and Base: HCO2-
H3PO4
Phosphic Acid
Carbonic Acid
H2(CO3)
Calculate 40.% v/v alcohol solution. How many mL of alcohol are present in a 0.750L bottle of brandy?
300 mL
How many liters of water and a 24% stock solution of the chemical are needed to dilute down to form 135 L of a 7% solution
40 L of water
H2PO4- + HCO3- -> H2CO3 + HPO4-2
Acid: H2PO4- and Base: HCO3-
Fe(OH)3
Iron (III) Hydroxide
Zinc Hydroxide
Zn(OH)2
How many grams of water are present in the 5.21% m/m solution of KCl made by dissolving 16.4g KCl?
314 grams of KCl and 298 grams of water
You have a stock solution of concentration 5.0 M, but your patient needs a solution with a concentration of 2.5 M. How many mL of the stock solution should you use to create 500. mL of the 2.5M solution?
250 ml of stock solution
HCl + NH3 -> NH4+ + Cl-
Acid: HCl and Base: NH3
HI
Hydroiodic acid
Hydrobromic acid
HBr