Chemistry, 14.07.2019 15:00, franky2871

The reusable booster rockets of the u. s. space shuttle employ a mixture of aluminum and ammonium perchlorate for fuel. a possible equation for this reaction is3al1s213nh4clo41s2hal2o31s21alcl3 1s213no1g216h2o1g2what mass of nh4clo4 should be used in the fuel mixture for every kilogram of al?

Answers: 1

Show answers

Answers

answered: maddy6882

- 4.35 kg of ammonium perchlorate are required for every kg of Al.

Solution:- It's a stoichiometry problem. The balanced equation for this problem is....

$3Al + 3NH_4ClO_4\rightarrow Al_2O_3 + AlCl_3 + 3NO + 6H_2O$

From balanced equation, there is 3:3 that is 1:1 mol ratio between aluminum and ammonium perchlorate.

Given mass of Al is 1 kg and we are asked to calculate the mass of ammonium perchlorate for it.

Molar mass of Al is 26.98 g/mol and molar mass of ammonium perchlorate is 117.49 g/mol.

1 kg = 1000 g

Grams of Al are converted to moles and then moles of ammonium perchlorate are calculated using mol ratio and finally on multiplying with molar mass we get the mass of ammonium perchlorate.

1000 g Al x (1mol Al/26.98 g Al) (1mol ammonium perchlorate/1mol Al) (117.49 g ammonium perchlorate/1mol ammonium perchlorate)

= 4354.7 g that is 4.35 kg of ammonium perchlorate

answered: Guest

Answerthis solution will not form a precipitateexplanationsolubility equilbrium: pbf₂(s) ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is $k_{sp} = [\text{pb}^{2+}][\text{f}^- ]^2 = 4 \times 10^{-8}$ (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as $q = [\text{pb}^{2+}]_{\text{initial}} \cdot [\text{f}^- ]^2_{\text{initial}}$ then, we can interpret q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product: $\begin{aligned} q & = [\text{pb}^{2+}]_{\text{initial}} \cdot [\text{f}^- ]^2_{\text{initial}} \\ & = (1.9 \times 10^{-3} ) (3.8\times 10^{3})^2 \\ & = 2.7 \times 10^{-8} \end{aligned}$ since q = 2.7 × 10⁻⁸ < ksp = 4 × 10⁻⁸, a precipitate will not form.

answered: Guest

Idont really know sorry

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 06:30, noathequeen

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

Answers: 3

continue

Chemistry, 22.06.2019 13:30, xojade

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.

Answers: 1

continue

Chemistry, 22.06.2019 23:00, stoog7352

What is the name of the enzyme that forms at the start of transcription?

Answers: 1

continue

Chemistry, 23.06.2019 06:00, Nannie60

Nthis lab, you will do experiments to identify types of changes. using the question format you learned (shown above), write an investigative question that you can answer by doing these experiments

Answers: 3

continue

Do you know the correct answer?

The reusable booster rockets of the u. s. space shuttle employ a mixture of aluminum and ammonium pe...