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ArbitrLikvidat [17]
3 years ago
8

Which mixture can be classified as a homogeneous mixture?

Chemistry
1 answer:
kramer3 years ago
4 0
Concrete is classified as a homogeneous mix
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This hypothesis is specific, can be tested (though perhaps not easily), and is well set up.

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What reagents can be used to test for unsaturation of hydrocarbons?​
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Two solutions are created by mixing one solution containing lithium nitrate with one containing sodium phosphate.
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Answer:

Solution A that will form a precipitate with Ksp = 2.3 x 10−4

Explanation:

                                  Li₃PO₄ ⇄ 3 Li⁺(aq) + PO₄³⁻(aq)

                                                     3S               S

Where S = Solubility(mole/lit) and Ksp = Solubility product

⇒ Ksp = (3S)³ x (S)

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⇒ S = 0.05 mol/lit

Concentration of Li₃PO₄ precipitate = 0.05

<u>Solution A </u>

0.500 lit of a 0.3 molar LiNO₃ contains 0.5 x 0.3 = 0.15 mole

0.4 lit of a 0.2 molar Na₃PO₄ contains = 3 x 0.4 x 0.2 = 0.24 mole

                                     3 LiNO₃ + Na₃PO₄ → 3 NaNO₃ + Li₃PO₄

(Mole/Stoichiometry)    \frac{0.15}{3}                \frac{0.24}{1}

                                   = 0.05            = 0.24

Since from (Mole/Stoichiometry) ratio we can conclude that LiNO₃ is limiting reagent.

So concentration of Li₃PO₄ is equal to 0.05.

                       

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A student finds that an unknown element reacts with elements from Group 2 (IIA). To which group does the unknown element most li
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Answer:

Explanation:

A because a

8 0
3 years ago
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