Questions from General Chemistry

Q: Consider the reaction represented by the chemical equation C(s

Consider the reaction represented by the chemical equation C(s) + O2(g) CO2(g) Because the coefficients of the balanced chemical equation are all equal to 1, we know that exact...

Q: The of a substance is the mass (in grams) of

The of a substance is the mass (in grams) of 1 mole of the substance.

Q: Describe in your own words how the molar mass of the compound

Describe in your own words how the molar mass of the compound below may be calculated.

Q: “Smelling salts,” which are used to revive someone who has

“Smelling salts,” which are used to revive someone who has fainted, typically contain ammonium carbonate, (NH4)2CO3. Ammonium carbonate decomposes readily to form ammonia, carbon dioxide, and water. T...

Q: Calcium carbide, CaC2, can be produced in an electric furnace

Calcium carbide, CaC2, can be produced in an electric furnace by strongly heating calcium oxide (lime) with carbon. The unbalanced equation is CaO(s) + C(s) CaC2(s) + CO(g) Calcium...

Q: Boron nitride reacts with iodine monofluoride in trichlorofluoromethane at 230°C

Boron nitride reacts with iodine monofluoride in trichlorofluoromethane at 230°C to produce pure nitrogen triiodide and by-product (BF3). BN + 3IF NI3 + BF3 a. What mass of iodine mono...

Q: If baking soda (sodium hydrogen carbonate) is heated strongly,

If baking soda (sodium hydrogen carbonate) is heated strongly, the following reaction occurs: 2NaHCO3(s) Na2CO3(s) + H2O(g) + CO2(g) Calculate the mass of sodium carbonate that wi...

Q: Define the amu. What is one amu equivalent to in grams

Define the amu. What is one amu equivalent to in grams?

Q: Write the formula and calculate the molar mass for each of the

Write the formula and calculate the molar mass for each of the following substances. a. carbon dioxide b. aluminum phosphate c. iron(III) carbonate d. lead(II) nitrate e. strontium chloride

Q: Although we usually think of substances as “burning” only in

Although we usually think of substances as “burning” only in oxygen gas, the process of rapid oxidation to produce a flame may also take place in other strongly oxidizing gases. For example, when iron...