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Grace [21]
3 years ago
11

State what method you would use the separate water from a potassium iodide solution​

Chemistry
2 answers:
tia_tia [17]3 years ago
4 0

Answer:

<u>distillation</u> is the method used to separate water from a potassium iodine solution

Explanation:

hope it helps !!

Pachacha [2.7K]3 years ago
3 0

Answer:

You can separate the Iodine from the water and convert the potassium iodide into elemental Iodine by mixing 1 part of a 5–13% solution of Iodine/Potassium Iodide with 1 part distilled water and 1 part 3% Hydrogen Peroxide Solution followed by 1/12 part 32.45% hydrochloric (Muriatic) acid.

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How much heat is required to increase the temperature of 10.0 grams of water 6.0oC? (The specific heat of water is 4.18 J/g x oC
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3 years ago
A volume of 25.36 ± 0.05 mL 25.36±0.05 mL of HNO 3 HNO3 solution was required for complete reaction with 0.8311 ± 0.0007 g 0.831
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Answer:

MOLARITY= 0.3092mol/l

ABSOLUTE UNCERTAINTY= 0.000873

Explanation:

The equation of reaction is

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QUESTION1: CALCULATION FOR MOLARITY;

Molarity= gram mole of solute ÷ liters of solution

Where;

Mole of solute= mass ÷ molar mass

Therefore;

Mole of solute= 0.8311g ÷ 105.988g/mol= 0.0078515mol

MOLARITY= 0.0078415mol ÷ 25.36ml = 0.0003092mol/ml = 0.3092mol/l

This is the Molarity of the solution

QUESTION2: CALCULATION FOR ABSOLUTE UNCERTAINTY;

Uncertainty (u) =√([0.05 ÷ 25.36]^2 + [0.001 ÷ 105.988]^2 + [0.0007 ÷ 0.8311]^2) × Molarity

Solving brackets gives

(0.00197161+0.00000943503+0.00084226) ×Molarity

Adding up gives

0.002823×Molarity

Therefore;

ABSOLUTE UNCERTAINTY= 0.002823×0.3092= 0.000873

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