Please help!
Stoichiometry DBA
1. 33 grams of Calcium Sulfate reacts with 28 grams of Alumin...
Please help!
Stoichiometry DBA
1. 33 grams of Calcium Sulfate reacts with 28 grams of Aluminum Phosphate to form Calcium
phosphate and Aluminum Sulfate
Write balanced equation here -
2. Which of the two reactants will limit the production of Calcium Phosphate. Show work here.
3. How much of the Aluminum Sulfate would be produced? Show work here. 4. 44 grams of Zinc Nitrate reacts with 59 grams of Iron(III) Hydroxide to form Zinc Hydroxide
and Iron(III) Nitrate.
Write balanced equation here -
5. Which of the two reactants will limit the production of Iron(III) Nitrate . Show work here.
6. How much excess reactant will you have left over?
Answers: 1
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Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
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