Question

-/12 points v WAS OSGENCHEM1 4.3.WA.002. My Notes Aluminum carbide is a solid that reacts with water to form aluminum hydroxide and methane gas. The reaction can be represented by the following chemical equation. Al,C3(5) + 12 H2001) + 4 Al(OH)3(s) + 3 CH49) If 0.250 mol Al Ccompletely reacts with water in this manner, calculate the following. (a) the number of moles of CH produced 49 mol (b) the mass in grams of CH4 produced -/8 points v My Notes Nickel, a common metal used in a variety of alloys, is purified via the Mond process to a very high (> 99.99% purity. One of the steps in the Mond process involves the reaction of solid nickel with carbon monoxide to produce Ni(CO), as shown in the unbalanced equation below. Ni(s) + CO(g) → Ni(CO)49) How much carbon monoxide, in grams, is required to purify an impure sample containing 3.85 kg of nickel? (pay attention to the units!) 4.9 CO

Answer 1

Aluminium Carbide ud a solid that deacts with cuatere form aluminium hydroxide and methane gas. The duaction can be de presented by the following Chemical Equation. Nuczot 12 H₂Old) HALCOH), (S) 3 CH₂ (9) 4x78Jm 3 x 16.04 Im © 12x18ymo 143. 95 zm/mol -Imol 143.95 gm =lmole of Aluca duacth with water to give 3x16.04 = 48.12 3 mole of CHY And 9 of 0.250 mol of Alula completely deacts with matur: The Number of moles of cry produced :- mole of Aly (3 (6) gives - 3 moles of Chly (9) 0.250 mol of Alucz gived - 3 x 0.250 moles of Chulg) - 10.750) moles of T chy(g) And B) The mass of chy Produced = ? Since moles of CHy produced 0.750 moles Imole of chyrg) = Da 16.04 gm. 0.750 mole of Coty = 16.04 x 0.7500, 12:03 am And of metha

3 =lmole I gm. Nickel, a common metal used in variety of Alloys, us Purified via the Mond Proces to very high (>99.99%) pasity. One of the steps in the Mond proces involves the duaction of Solid nickel with carbon Monoxide to produce Niccola as shown in Equation Unbalanced Equation - Nics) + Corg) Nicco), (g) Balanad Equation? - Ni (8) Thco(9) - Niccodu (9) 58.699m 4 x 28.01 = 112.04 1 170.73 Im of Nics)! = 4 mole I of I of colg) 1 Niccoli - 1 mole According to Balanad Chemical Equation:- 58. 69gm purified by of Nils) 4 mole of = 1 mole CO(g) = 112.04 gmot Cola) 3.85kg = 3.85 x 1000gm. - 3850 gm

of co weight in gram Required to purify 3.85kg = 3850gm of Ni - 58.69 gm of Nics) 112.04 gm of Colg) required to purify 1gm of Ni (s) Purified Whing - 2 58.69 gm of CO(g) 3850gm of Nils) Purified Wring = 112.04 x 3850gm 58.69 of colo) 17349.70 I gm of Cous Ansuur required to purify 3.86 kg of Nico)