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Rina8888 [55]
2 years ago
13

Cu2O reacts with Cu2S to produce Cu and SO2 gas. How many moles of SO2 is produced when 0.48 mol Cu is produced in this reaction

?
Chemistry
1 answer:
nika2105 [10]2 years ago
3 0

Answer:

2.88moles

Explanation:

To solve this question adequately, we need to have a balanced chemical equation

2Cu2O + Cu2S → 6Cu + SO2

From the chemical equation, we can see that the mole ratio of the sulfur oxide to the Cu is 6 to 1.

This means that if 0.48 mole is sulfur oxide is produced, then 6 of this number of moles would have been produced in the case of Cu.

Hence, to get the number of moles of copper produced, we simply multiply 0.48 by 6 to give 2.88 moles

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Compound X contains only carbon, hydrogen, nitrogen, and chlorine. When 1.00 g of X is dissolved in water and allowed to react w
iogann1982 [59]

Answer:

C_{3}H_{12}N_{2}Cl_{2}

Explanation:

Lets say the formula of the compound is:

C_{a}H_{b}N_{c}Cl_{d}

Experiment 1:

With 1.00 g of the compound you get 1.95 g of AgCl

The molar mass of AgCl is 143.32 g/mol.

The moles of AgCl in 1.95g are:

moles = \frac{1.95}{143.32} = 0.0136

Also the moles of Cl are 0.0136 because 1 mol of AgCl has 1 mol of Cl

Experiment 2:

With 1.00 g of the compound you get 0.900 of CO2 and 0.735 g of H2O

The molar mass of CO2 is 44 g/mol

The molar mass of H2O is 18 g/mol

moles\ CO_{2} = \frac{0.900}{44} = 0.0205 \\moles\ H_{2}O = \frac{0.735}{18} = 0.0408

moles of C are 0.0205

moles of H are 0.0816 (2 times the moles of H2O)

With the given information so far you get that in 1.00 g of the compound there are 0.0136 moles of Cl, 0.0205 moles of C and 0.0816 moles of H.

In mass you have:

Mass Cl = 0.0136 * 35.5 = 0.4828 g

Mass C = 0.0205 * 12 = 0.246 g

Mass H = 0.0816 * 1 = 0.0816 g

Total mass = 0.4828 + 0.246 + 0.0816 + mass N

1.00 = 0.8104 + Mass N

Mass N = 0.1896

moles\ N =\frac{0.1896}{14} =0.0135

Now you divide all moles for the least

Cl: 0.0136 / 0.0135 = 1.0007

C: 0.0205 / 0.0135 = 1.52

H: 0.0816 / 0.0135 = 6.04

N: 0.0135 / 0.0135 = 1

multiplying by 2 to get an integer for C

Cl = 2

C = 3

H = 12

N = 2

C_{3}H_{12}N_{2}Cl_{2}

7 0
2 years ago
In chemistry we did a lab examining iron nails corroding in agar. One of the nails was wrapped in zinc, and the nail did not rus
forsale [732]

Answer:

Zn(OH)₂

<em>Explanation: </em>

Zn is above Fe in the activity series, so it is more readily oxidized:

Zn(s) ⟶ Zn²⁺(aq) + 2e⁻

The zinc ions go into solution.

The electrons travel from the Zn to the surface of the iron nail, where they reduce the water to hydrogen and hydroxide ions.

2H₂O(ℓ) + 2e⁻ ⟶ H₂(g) + 2OH⁻(aq)

Neither the zinc ions nor the hydroxide ions can move far through the gel.

Their concentration builds up around the hail. The ions find each other and form a precipitate.

Zn²⁺(aq) + 2OH⁻(aq) ⟶  Zn(OH)₂(s)

4 0
2 years ago
If the coefficient 2 is placed in front of the product tetraiodine nonaoxide (I4O9), then, how many atoms of each element must b
Svetlanka [38]
The coefficient of any substance in a chemical equation indicates the number of moles of that substance which are present. We can see from its chemical formula that tetraiodine nonaoxide contains four iodine atoms and nine oxygen atoms. If the coefficient is two, then the total iodine atoms will be eight and  the total oxygen atoms will be 18. Because the law of conservation of mass holds, an equal amount must be accounted for on the other side of the chemical equation. Therefore, the first option is correct.
3 0
1 year ago
How does 0.5 m sucrose (molecular mass 342) solution compare to 0.5 m glucose (molecular mass 180) solution?
mash [69]

Answer : Both solutions contain 3.011 X 10^{23} molecules.

Explanation : The number of molecules of 0.5 M of sucrose is equal to the number of molecules in 0.5 M of glucose. Both solutions contain 3.011 x 10^{23} molecules.

Avogadro's Number is  N_{A} =  6.022 X 10^{23} which represents particles per mole and particles may be typically molecules, atoms, ions, electrons, etc.

Here, only molarity values are given; where molarity is a measurement of concentration in terms of moles of the solute per liter of solvent.

Since each substance has the same concentration, 0.5 M, each will have the same number of molecules present per liter of solution.

Addition of molar mass for individual substance is not needed. As if both are considered in 1 Liter they would have same moles which is 0.5.

We can calculate the number of molecules for each;

Number of molecules  = N_{A} X M;

∴  Number of molecules =  6.022 X 10^{23} X 0.5 mol/L X 1 L which will be  = 3.011 X 10^{23}

Thus, these solutions compare to each other in that they have not only the same concentration, but they will have the same number of solvated sugar molecules. But the mass of glucose dissolved will be less than the mass of sucrose.

7 0
1 year ago
Read 2 more answers
When 64.0 g of methanol (CHOH) is burned, 1454 kJ of energy is produced. What is the heat of combustion for methanol?
andreev551 [17]

 The heat  of combustion  for  methanol   is 727  kj/mol


    <em><u>calculation</u></em>

 calculate the moles  of methanol (CH3OH)

moles = mass/molar  mass

molar mass of methanol =  12 +( 1 x3)  +16 + 1= 32 g /mol

moles is therefore= 64.0 g / 32 g/mol =  2 moles


Heat of combustion  is therefore = 1454 Kj / 2 moles =  727  Kj/mol

6 0
2 years ago
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