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A nonmetal oxide dissolves in water to give an acid. Show this for gaseous carbon dioxide by writing a balanced chemical equation. (b) A metal oxide dissolves in water to give a base. Show this for solid potassium oxide by writing a balanced chemical reaction.
You have 500.0 mL of a buffer solution containing 0.30 M ammonia (NH3) and 0.20 M ammonium chloride (NH4Cl). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M HCl solution? [Kb = 1.8 x 10-5]
Liquid acetone was placed in a 3.00L flask, then vaporized at 95'C and 1.02 atm. The vapor filling the flask weighed 5.87g. Calculate the molar mass of acetone.
0.0010 mg of H, 0.0116 mg of C, and 0.0310 mg of O. It was also determined that the unknown compound had a molecular weight of 90.0 g/mol.
draw the structure of a compound C5H8O that reacts with 2,4-dinitrophenylhydrazine, decolorizes bromine in dichloromethane, but does not give a positive iodoform test.
when 50.0 gram of metal at 75.0 C is added to 100 grams of water at 15.0 C the temperature of the water rises to 18.3 C. Assume that no heat is lost to the surroundings. What is the specific heat of this metal
acetic acid has one carbon- oxygen bond that is 1.36 A nd another 1.23 A however sodium acetate has two equal carbon- oxygen bonds
A sample of neon gas used in a neon sign occupies a volume of 1.50 L at a pressure of 630 torr. Calculate the volume of the gas if the pressure in the glass tube of the sign is 793 torr.
Two compounds have the same empirical formula. one substance is a gas, the other is a viscous liquid. how is.. it possible for two substances with the same empirical formula
containing too little oxygen to allow complete combustion of the fuel is called a rich mixture. A high-performance heater that burns propane, C3H8(g), is adjusted so that 100.0 g of O2(g) enters the system for every 100.0 g of propane. Is this mix..
A graduated cylinder contains 10.0ml of water. If the volume of a single water molecule is 2.99 x 10e-23 cm e3, how many molecules are in the graduated cylinder?
In a concentration cell established using 0.120 M Ag+ solution and a saturated AgCN solution, the measured Ecell is 0.8500 V. Calculate the molarity of the Ag+ ion in the saturated solution.
Calculate Enthalpy of HNCO given that the enthalpy of the following reaction is -221.4 KJ/mol.
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