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1 year ago

What ions are present in the KSCN(aq) solution

Chemistry

1 answer:

ra1l [238]1 year ago

4 0

We have the compound: KSCN, Potassium thiocyanate, in an aqueous solution.

The dissociated reaction of the salt:

KSCN (aq) => K+ + SCN-

It has 2 ions. One of them is the potassium ion, K+ (cation) and the other one is the thiocyanate ion, SCN- (anion).

Answer:

K+, the potassium ion

SCN-, the thiocyanate ion

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Explanation:

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4 years ago

There are three stable isotopes of magnesium. Their masses are 23.9850, 24.9858, and 25.9826 u. If the average atomic mass of ma

olganol [36]

Answer:

²⁵ Mg = 10.00%

²⁶ Mg = 11.0%

Explanation:

Given that:

Magnesium ²⁴Mg has an abundance of 78.99%

Hence, (100 - 78.99)% = 21.01%

21.01% is the abundance of ²⁵ Mg and ²⁶ Mg

Suppose,

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²⁶ Mg = (21.01 - x)%

Then;

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∴

$24.3050 \times 100 = {78.99}(23.9850)+\dfrac{x}{100}(24.9858) +\dfrac{21.01-x}{100}(25.9826)$

2430.5 = 2440.46915 -0.9968 x

0.9968x = 2440.46915 - 2430.5

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x = 9.96915/0.9968

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²⁵ Mg = x

²⁶ Mg = (21.01 - x)%

²⁵ Mg = 10.00%

²⁶ Mg = (21.01 - 10.00)%

²⁶ Mg = 11.0%

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