# chemistry

which reactant in the reaction of sodium carbonate and calcium chloride dihydrate is the limiting reactant if 1.00 gram of each reagent is used?

a. sodium carbonate
b. calcium chloride dihydrate

1. 👍
2. 👎
3. 👁
1. Most limiting reagent problems are done the same way.
1. Write the equation and balance it.
2a. Convert 1 g Na2CO3 to moles. moles = grams/molar mass.
2b. Convert 1 g CaCl2.2H2O to moles. same procedure.
3a. Using the coefficients in the balanced equation, convert moles Na2CO3 to moles CaCO3.
3b. Same procedure, convert moles CaCl2.2H2O to moles CaCO3.
3c. It is quite likely that moles from 3a and 3b will not be the same which means one of them is wrong. In limiting reagent problems, the correct answer is ALWAYS the smaller value and the reagent producing that value is the limiting reagent.
4. You aren't asked to calculate grams of the product, but you can convert the value from 3c to grams. g = moles x molar mass.

1. 👍
2. 👎

## Similar Questions

1. ### Chemistry

Take the reaction: NH3 + O2 ---> NO + H2O. In an experiment, 3.25 g of NH3 are allowed to react with 3.50 g of O2. Which reactant is the limiting reagent? You may either write the formula or the name of the limiting reactant.

2. ### CHEM-last part prob.

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2Al(s) + 3Cl2(g) -> 2AlCl3(s) You are given 19.0g of aluminum and 24.0g of chlorine gas. a)If you had excess chlorine, how many moles of of

3. ### CHEM

My balanced equation is: a) 2C8H18(g) + 25O2(g) -> 16CO2(g) + 18H2O(g) b) 0.290 mol of octane is allowed to react with 0.670mol of oxygen. Which is the limiting reactant? (((Which I found Oxygen to be the limiting reactant.))) I

4. ### Chemistry

For each of the following unbalanced equations, suppose that exactly 15.0g of each reactant is taken. Determine which reactant is limiting, and calculate what mass of each product is expected. assume the limiting reactant is

1. ### Last Question Plz helppp:((im soo sleepy!!:(

1)The reaction between solid sodium and iron(III) oxide, Fe2O3(s), is one in a series of reactions that occurs when an automobile air bag inflates. 6Na(s) + Fe2O3(s) -> 3Na2o(s) + 2Fe(s) If 100.0 g of iron(III) oxide are used in

2. ### Chem

For each unbalanced equation below, calculate how many grams of each product would be produced by complete reaction of 12.5g of the reactant indicated. Indicate clearly the mole ratio used for the conversion. A.

3. ### Chemistry

1.The reaction of nickel (II) chloride solid with sodium hydroxide aqueous solution occurs according to the balanced reaction equation given below. NiCl2 (s) + 2 NaOH(aq) → Ni(OH)2(s) + 2 NaCl(aq) If 28.37 g of solid NiCl2 are

4. ### Chemistry

Calcium Chloride reacts with sodium carbonate (aq) to form solid calcium carbonate and aqueous sodium chloride. Determine the volume of a 2.00M Calcium chloride solution that would be needed to exactly react with 0.0750L of 1.00M

1. ### *Chemistry

Hydrogen reacts w/ sodium to produce solid sodium hydride, NaH. A reaction mixture contains 6.75 g Na and 3.03 g H2. A. Which reactant is limiting? B. What is the theoretical yield of NaH from the above reaction mixture? C. What

2. ### CHEMISTRY

CaCO3(s)+2HCl(aq)>CaCl2(aq)+H2O(l)+CO2(g) how many grams of calcium chloride will be produced when 30 g of calcium carbonate are combined with 13 g of hydrochloric acid? Which reactant is in excess and how many grams of this

3. ### Chemistry

Calcium reacts with nitrogen to form calcium nitride. Indicate which reactant is limiting, calculate the mass of calcium nitride formed when 50.0g of calcium reacts with 50.0g of Nitrogen. How much excess reactant do you have?

4. ### Chemistry

1.The Volume of oxygen required for the complete combustion of 500ML of ethyne at STP..A)2.00ML B)1.25 C)1.71 D)1.00 2.A Chemical Engineer finds that 250ml CuSO4 reacts with excess NaOH to create 2.37g of precipitate.Calculate the