Meaning of a neutral solution.

Can a neutral solution be at pH 8 ? Explain pH.

hydrogen peroxide/ catalase -- investigating substrate concentration--- michaelis equation query?

I have come across a major stumbling block with my kinetics (michaelis equation). Aim: I am investigating the changes of hydrogen peroxide concentration on the rate of decomposition of catalase. Outline of method: The apparatus involve yeast(catalase), hydrogen peroxide, a 100cm3 gas syringe to collect oxygen. I ...continues

Dalton's Law application. Calculation of pressure in a container

What is the pressure in a 10 L container that is at 27o C and which contains 3 mol of H2 gas and 8 mol of He gas?

Determining the amount of mass produced from a given chemical reaction.

Determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water according to the following equation: Mass-Mass Li3N + 3 H2O ---> NH3 + 3LiOH

Determining the empirical formula for a compound based on the grams of each element it contains.

A compound contains carbon, hydrogen, and oxygen. A 10 g sample is analyzed for carbon and hydrogen. It contains 1.315 g hydrogen and 5.213 g carbon. What is the empirical formula for this compound?

Application of Charles's Law (one of the derived basic gas laws) to calculate volume at a different temperature.

A certain mass of calcium carbide, CaC2, reacts completely with water to produce 64.5 L of acetylene, C2H2, at 50 degrees C and 1 atm. If the same reactants react completely at 300 degrees C and 1 atm, what will be the volume of acetylene?

Balancing a chemical equation and calculating the reactant quantity based on the reaction stoichiometry.

Balance the following equation: Cu(s)+ AgNO3(aq) = Ag(s) + Cu(NO3)2(aq) ("s" and "aq" in parantheses refers to the phase of the reactants and products, i.e. solid and aqueous, respectively.) What is the amount of Cu (in grams) necessary to precipitate 0.50 g of Ag in the presence of excess AgNO3?

Determining the limiting reactant based on the chemical equation and the available quantity of the reactants.

For the balanced reaction: N2H4 + 2H2O2 = N2 + 4H2O 12.0 g N2H4 is reacted with 23.0 g H2O2. Which is the limiting reactant?

Review Practice Problems 1 problem

Chemistry practice problems

Review Practice Problem

Chemistry review problems