A student investigated the reactions of copper carbonate and copper oxide with dilute hydrochloric acid. How can a sample of copper chloride crystals be made from copper carbonate and dilute hydrochloric acid?

Md Ariful Islam

0 like 0 dislike
1 views
Share with your friends

1 Answers

Md Ariful Islam

Call

$CuCO_3(s) + 2HCl(aq)rarrCuCl_2(aq) + CO_2(g)uarr + H_2O(l)$

Or...........

$CuO(s) + 2HCl(aq)rarrCuCl_2(aq) + H_2O(l)$

For each acid base reaction the product is the beautiful blue-coloured $[Cu(OH_2)_6]^(2+)$ ion, which is commonly represented by $Cu^(2+)(aq)$, i.e. the $"aquated cupric ion......"$

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
When 2 moles of potassium chlorate crystals decompose to potassium chloride crystals and oxygen gas at constant temperature and pressure, 44.7 kJ are given off. What is the thermochemical equation?

A thermochemical equation is simply a chemical equation that contains information about the change of reaction, $DeltaH_"rxn"$. The first thing to do when writing a thermochemical equation is to...

1 Answers 1 views
Decomposing calcium carbonate yields calcium oxide and dioxide. What information is needed to calculate the mass of calcium oxide that can produced from 4.7 kg of calcium carbonate?

The balanced chemical equation The molar mass of $"CaCO"_3$ The molar ratio of $"CaO"$ to $"CaCO"_3$ The molar mass of $"CaO"$ Your strategy has four steps:...

1 Answers 1 views
Magnesium and dilute hydrochloric acid react to produce magnesium chloride solution and hydrogen: $Mg(s) + 2HCl(aq) -> MgCl_2(aq) + H_2(g)$ What are two observations that could be made during the reaction?

There would also be some heat evolved as the metal reacted. But this is no substitute for doing the experiment yourself (safely of course, while you wear safety specs to...

1 Answers 1 views
Calcium carbonate decomposes to form calcium oxide and carbon dioxide gas. If 44.5 grams of calcium oxide is produced, how many grams of calcium carbonate had to decomposez?

We need a stoichiometric reaction that represents the decomposition of calcium carbonate: $CaCO_3(s) + Delta rarr CaO(s) + CO_2(g)uarr$ And thus calcium oxide and calcium carbonate are present in equimolar...

1 Answers 1 views
Hydrogen was passed over heated 2g copper oxide till only copper was left. The mass of copper obtained was was 1.6 grams. What is the percentage of oxygen in copper oxide?

There is a loss of 0.4 grams. $ 2.0 -1.6$ = 0.4 grams $ 0.4/2.0 xx 100 $ = 20% The Hydrogen will combine with the Oxygen in...

1 Answers 1 views
A mixture of magnesium carbonate and magnesium oxide of mass $12.46*g$ underwent fierce heating. After heating, there were $8.43*g$ of salt remaining. What were the masses of magnesium carbonate, and magnesium oxide in the original sample?

$MgCO_3(s)+DeltararrMgO(s) + CO_2(g)$ And we would have to heat the magnesium salt VERY fiercely to get complete decarboxylation. $"Moles of carbon dioxide LOST"$ $=$ $(4.40*g)/(44.01*g*mol^-1)$ $=0.010*mol$ And therefore in...

1 Answers 1 views
An oxide of copper contains 2.118 g of copper and 0.2666 g of oxygen. Another oxide of copper contains the same mass of copper but 0.5332 g of copper. What are the empirical formulas of the oxides?

The empirical formulas are $"Cu"_2"O"$ and $"CuO"$. Oxide 1 $color(white)(mmmmml)"Cu" +color(white)(m) "O" → "Oxide 1"$ $"Mass/g":color(white)(l) 2.118color(white)(ll) 0.2666$ Our job is to calculate the ratio of the moles of...

1 Answers 1 views
Zinc oxide reacts with hydrochloric acid to produce zinc chloride and dihydrogen monoxide. If 3.6 moles of zinc oxide reacts with an excess of hydrochloric acid, then how many grams of zinc chloride were produced?

The reaction happening in solution is the following: $ZnO(aq)+2HCl(aq)->ZnCl_2(aq)+H_2O(l)$ Since the hydrochloric acid ($HCl$) is in excess, therefore, the number of moles of Zinc oxide ($ZnO$) will determine the mass...

1 Answers 1 views
Which would cause more damage to skin, conc. hydrochloric acid, or dilute hydrochloric acid?

Hydrochloric acid is an oxidizing acid. Conc, hydrochloric acid would give you an horrendous burn if it splashed on you. Dilute hydrochloric acid would still hurt, but you would have...

1 Answers 1 views
How do I write the neutralization reactions between: (a) calcium carbonate and hydrogen bromide; (b) cadmium oxide and hydrogen chloride; (c) ferric oxide and nitric acid; (d) sodium oxide and water?

$b.$ $CdO(s) + 2HCl(aq) rarr CdCl_2(aq) + H_2O(l)$ $("cadmium chloride")$ $c.$ $Fe_2O_3(s) + 6HNO_3(aq) rarr 2Fe(NO_3)_3(aq) + 3H_2O(l)$ $("ferric nitrate or iron(III) nitrate")$ $d.$ $Na_2O(s) + H_2O(l) rarr 2NaOH(aq)$ $("sodium...

1 Answers 1 views
X