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lakkis [162]
3 years ago
9

Lead(II) sulfide, PbS, reacts with oxygen gas to produce lead(II)oxide and dioxide. If 0.500 moles of O2 were consumed using thi

s chemical reaction, how much of lead(II)would be produced?
Chemistry
1 answer:
Brrunno [24]3 years ago
3 0
The balanced chemical reaction is written as:

PbS<span> + 3/2</span>O2<span> = PbO + SO2

We  are given the amount of oxygen to be consumed in the reaction. We use this amount for the calculations. We do as follows:

0.500 mol O2 ( 1 mol PbO / 3/2 mol O2) = 0.33 mol PbO is to be produced</span>
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How much charged is required to reduced 2 moles of cr6+ to cr3+
BartSMP [9]

Answer:

6e⁻

Explanation:

Charge in reducing 2 mole of Cr⁶⁺ to Cr³⁺

              Cr⁶⁺   +      xe⁻           →       Cr³⁺

The numbers 6+ and 3+ on the chromium atoms are the oxidation number of the atom.

It shows the number of electrons that has been lost by chromium in an oxidation state.

         Cr⁶⁺ shows that it has lost 6 electrons. When an atom loses electrons, the number of protons becomes more. This makes it positively charged in nature.

      This analogy goes for Cr³⁺

 Therefore, in going from reactants to products, chromium

                                6+      →    3+

 In this kind of expression, the number of atoms must be conserved and the charges too;

                        2Cr⁶⁺   +      xe⁻           →       2Cr³⁺

    given 2 moles of Cr;

               To balance the charge;

               2(6+) + x(-) = 2(3+)

                   12 - x = 6

                          x  = 6

A charge of 6e⁻ is required to reduce 2 mole of Cr⁶⁺ to Cr³⁺

6 0
4 years ago
How many grams of O₂ can be prepared from the thermal decomposition of 4.27 kg of HgO? Name and calculate the mass (in kg) of th
babymother [125]

Mass of Oxygen is: 0.784gm

Potassium chlorate is KClO3 and the decomposition looks like this...

2KClO3 ==> 2KCl + 3O2

4.50 g KClO3 x 1 mole/122.55 g = 0.0367 moles

0.0367 moles KClO3 x 3 moles O2/2 moles KClO3 = 0.0245 moles O2 (see mole ratio in balanced equation)

mass of O2 = 0.0245 moles O2 x 32 g/mole = 0.784 g O2 formed

<h3>What is the pressure of a mixture of CO2 and KR?</h3>

A mixture of CO2 and Kr weighs 37.0 g and exerts a pressure of 0.737 atm in its container. is expensive, you wish to recover it from the mixture.

<h3>How much oxygen is created when one mole of potassium chlorate breaks down?</h3>

in the reaction 2K C lO3 2K C l + 3O2 K C lO3? This demonstrates that 3 moles of oxygen gas are created for every 2 moles of degraded potassium chlorate.

<h3>How is high pressure liquid CO2 produced?</h3>

High pressure liquid CO 2 is produced by compressing the gaseous CO 2 in multistage compressors to pressures in the neighbourhood of 69 bar (1000,76 psi) pressure, then cooling it to around 18 °C (64,4 °F). It is customarily filled into specially constructed steel cylinders.

Learn more about decomposition HgO:

brainly.com/question/15066243

#SPJ4

5 0
2 years ago
I need help bad bro i have a 30 cs this is missing
Nat2105 [25]

Answer:  11.02 moles of Ag can be formed.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} Cu=\frac{350.00g}{63.55g/mol}=5.51moles

The balanced chemical equation is:

Cu+2AgNO_3\rightarrow Cu(NO_3)_2+2Ag  

According to stoichiometry :

1 moles of Cu produces =  2 moles of Ag

Thus 5.51 moles of Cu will produce=\frac{2}{1}\times 5.51=11.02moles  of Ag  

Thus 11.02 moles of Ag can be formed.

4 0
3 years ago
Which of the following breaks and forms bonds?
svp [43]
Your answer would be "Chemical Change"
7 0
3 years ago
Student exploitation: electron configuration
adell [148]

E:2

M ummmmm

<em>try</em><em> </em><em>simplifying</em>

4 0
4 years ago
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