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BaLLatris [955]
3 years ago
8

Determine the molar solubility for pb3(po4)2 in pure water. ksp for pb3(po4)2 is 1.0 x 10-54.

Chemistry
1 answer:
hoa [83]3 years ago
7 0
Dissociation of Pb₃(PO₄)₂ is;
                       Pb₃(PO₄)₂(s)     ⇆      3Pb²⁺(aq)     +     2PO₄³⁻(aq)
initial                                                    -                          -
change               -X                            +3X                     +2X
Equilibrium                                          3X                        2X

Ksp            =       [Pb²⁺(aq)]³ [PO₄³⁻(aq)]²
1.0 x 10⁻⁵⁴ =         (3X)³ (2X)²
1.0 x 10⁻⁵⁴ =        108X⁵
         X      =        6.21 x 10⁻¹² M

Hence the molar solubility of Pb₃(PO₄)₂ is 6.21 x 10⁻¹² M.
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A sample of rutile, an ore of titanium consisting principally of TiO2(s), was found to be 65.2% TiO2(s) by mass, with the remain
Ivan

A sample of rutile, an ore of titanium consisting principally of TiO2(s), was found to be 65.2% TiO2(s) by mass, with the remainder being sand impurities. what is the minimum number of metric tons of the ore that must be processed to obtain 10.0 metric tons of titanium

Explanation:

Ore contains ---- 65.2% TiO_2

Mass% of titanium in TiO2 can be calculated as shown below:

mass percentage of Ti in TiO2=\frac{mass of Ti}{mass of TiO_2} *100\\=(47.86g/79.866g)* 100\\=59.9

Given 10.0 metric tons of titanium is required.

The mass of ore that should be processed can be calculated as shown below:

Mass of Ti = ore x TiO2 % x Ti mass %

10.0 x 1000 kg = M (mass of ore) x (65.2/100) x (59.9/100) Ti

=>M=(10.0 metric tons) / (0.652 x 0.599)

=>M=25.6 metric tons

Hence, the mass of ore required is 25.6 metric tons.

5 0
2 years ago
According to Le Chatelier’s principle, a change in pressure affects the chemical equilibrium of the reaction system under what c
Marysya12 [62]
A change in pressure will affect the equilibrium position of the reaction if one or more of the reactants or products are in the gaseous phase.

Le Chatelier's principle states that whenever a change is brought about to a system under chemical equilibrium, the equilibrium shifts in a manner to reverse this change. So if the pressure of a reaction mixture is increased, the equilibrium will shift towards the side with the lower number of molecules, and if the pressure is reduced, the equilibrium will shift to the side with the greater number of molecules.
8 0
3 years ago
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How many moles of iron are in 50.0g of iron? How many iron atoms are in 59.0g of iron?
Julli [10]

Answer:

50.0 \div 59.0 = 10

right

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2 years ago
Using the Erlenmeyer flask and its contents from part A, continue with
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It’s b for sure that’s the answer
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3 years ago
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The half-life of carbon-14 is 5,730 years. How many grams of parent material will remain from a 200-gram sample after 3 half-liv
Alex17521 [72]

Answer:

The answer to your question is 25 grams

Explanation:

Data

half-life = 5730 years

sample = 200 g

after 3 half-lives

Process

Calculate the amount of sample after one, two and three half-lives.

After each half-life, that of sample is half the previous amount.

                         Number of half-lives           Amount of sample

                                       0                                        200 g

                                        1                                         100 g

                                        2                                          50 g

                                       3                                           25 g

4 0
3 years ago
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