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Calculate the hydronium ion, H3O+ , and hydroxide ion, OH− , concentrations for a 0.0111 M HCl solution.
[H3O+]=
[OH−]=
Calculate the pH for each H3O+ concentration.
[H3O+]=1×10−6 M
pH=
[H3O+]=0.1 M
pH=
[H3O+]=1×10−11 M
pH=
Calculate the H3O+ concentration for each pH.
pH=11[H3O+]=
pH=2[H3O+]=
pH=5[H3O+]=
Complete these Brønsted–Lowry reactions.
HCO−3+H+↽−−⇀
HCO−3+OH−↽−−⇀
Complete and balance the three equations according to acid and base behavior in water. Phase labels are optional.
HNO3(aq)+H2O(l)⟶
Ba(OH)2(s)−→−−H2O
HF(aq)+H2O(l)↽−−⇀
Give the name for the acid with the formula H3PO4 .
How would you prepare 500ml of 28% w/v (weight/volume) KOH (potassium hydroxide) solution? From this stock, how would you prepare a 0.1M working solution?
The characteristic odor of pineapple is due to ethyl butyrate. Combustion of 2.78 mg of ethyl butyrate yields 6.32 g of CO2 and 2.58 g of H20. The property of the compound suggest that the molar mass should be between 100 and 150g/mol. What is the molecular formula?
5.00 g of a nonvolatile compound was dissolved in 100 g of water at 30oC.The vapor pressure
of the solution was measured and found to be 31.20 Torr. The vapor pressure of pure water
at 30oC is 31.82 Torr. Calculate the molar mass of the unknown solute.
Use Raoult’s Law to determine the vapor pressure of an aqueous solution when 164 g of
glycerin (C3H8O3) is added to 338 mL of H2O at 39.8 °C. The normal vapor pressure of pure
H2O at 39.8 °C is 54.74 torr. Density of H2O at 39.8 °C is 0.992 g/mL
#331389 on Nov 2022