Question

Question text

A limiting reagent is Choose...consumed completelyleft over in excess during a chemical reaction, and it Choose...decreasesincreases the possible amount of product that can be formed.

Question 2

Not yet answered

Points out of 1

Flag question

Question text

A student used 7.15 g of CaCl₂ and 9.25 g of K₂CO₃ to make CaCO₃. The reaction is:

K₂CO₃(aq) + CaCl₂(aq) = CaCO₃(s) + 2KCl(aq).

Based on the masses of the two reactants given, the limiting reagent is Choose...CaCl2K2CO3 .

Question 3

Not yet answered

Points out of 2

Flag question

Question text

Based on the data, the balanced equation, and the limiting reagent in question 2, what is theoretical yield in grams of CaCO₃? Give your answer to the correct number of significant figures. Just type in the number. Do not include the units in your answer.

Answer:

Question 4

Not yet answered

Points out of 2

Flag question

Question text

Go back to the data, the balanced equation, and the limiting reagent in question 2, as well as the theoretical yield in question 3. If the actual yield of CaCO₃ is 6.15 grams, what is the percent yield of the reaction? Give your answer to the correct number of significant figures. Do not include the percent (%) sign.

Answer:

Question 5

Not yet answered

Points out of 1

Flag question

Question text

If well water (containing calcium ions in addition to other minerals) is used rather than deionized water to prepare the reactant solutions, the experimental / actual yield of calcium carbonate:

Select one:

increases

decreases

stays the same

Answer 1

is a completely reagent during a Ilmiting which chemical - It Product reagent consumed reaction decreases than can amount of the be possible formed ka t cach I more mole 138-2019_ 11098.4 cach + Ziccl. Imole 100-08699 mo mol moles cach, z mass a motor mot 7.159 To-989 ar can 2 0-0644 give 0.0644 moles moles of caco maes hw z 0.0669 moles 9.259 a 138-2019 0.0669 moles wot at can give of cace care produced from cach, is moles less - so cach acts as limiting reactant so The ovencal moles of caso a (moles o-obry moles from ca The ovencal yield 2 moles x molar mass 0-06 44 moles x 100-08699 4.) I veld 2 actual yield xlooy. Theoretical Yield 6.159 & root. & 6.459 2 95.3

s here our excess reactant is kg So v reacts with cat lons present اعوميا عSعکلمعلمكلا عامة more caces So our caso a actual increases . yield of