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Mila [183]
3 years ago
6

A substance contains 36.1 percent calcium and 63.9 percent chlorine by weight. What is the empirical formula of the given compou

nd?
A.
CaCl

B.
Ca0.9Cl1.8

C.
CaCl2

D.
Ca2Cl4
Chemistry
2 answers:
Margaret [11]3 years ago
5 0

Answer:

C

Explanation:

Alika [10]3 years ago
4 0

Answer:C-CaCl2

Explanation:The answer is C because the chemical formula of calcium chloride is CaCl2.

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The solubility of the ionic compound MX3, having a molar mass of 288 g/mol, is 3.60 x 10-2 g/L. Calculate the KSP of the compoun
GarryVolchara [31]

K_{sp} of the compound is found to be  5.04 ×10^{-10}.

Solubility :Solubility can be define as the amount of a substance that dissolves or mixes in a given amount of solvent at specific conditions.

Solubility equilibrium

Ksp = [A^{+} ]^{a} [B^{-} ]^{b}

Ksp = solubility product constant

A+ = cation in an aquious solution

B- = anion in an aqueous solution

a, b = relative concentrations of a and b

Given,

Solubility = s = 3.60 × 10^{-2} g/L

molar mass = 288 g/ mol

∴ s= 3.60 × 10^{-2} g/L ÷ 288 g/ mol = 1.25 ×10^{-4} mol/ L

Reaction:

MX3 ⇄ M + 3X

           s       3s

K_{sp} =[ M^{+3}] [ X^{-1}]^{3} = solubility product

∴ K_{sp} =[s]^{} [3s]^{3}

∴ K_{sp} = 3 s^{4}

∴ K_{sp} = 3 × (3.60 × 10^{-2} )^{4}

∴ K_{sp} = 503.8848 ×10^{-8}  = 5.04 ×10^{-10}

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7 0
2 years ago
Draw the lewis dot structure of C4H8N2O3
Mrac [35]

Explanation:

Refer to the attachment

Extrashots:-

C4H8N2O3 is called asparagine .

7 0
3 years ago
The reaction CO2+H2O=H2OCO3 is classified as
Otrada [13]
It would be classified as decomposition reaction
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The pressure of Cl2 gas in a 2.0-L cylinder is 300. kPa at 25°C. What is the pressure (in kPa) when this gas is released into a
Veronika [31]

The Final Pressure of the gas is 6 kPa

<h3>What is Boyle's Law ?</h3>

At constant Temperature , the absolute pressure exerted by the gas is inversely proportional to the volume of the gas.

\rm P_1V_1 = P_2V_2

It is given that

\rm P_1 = 300k.Pa\\T_1 = 25 \; Degree\\V_1 = 2L\\V_2 = 100L\\T_2 = 25 Degree\\P_2 = ?

To determine Final Pressure , Boyle's Law will be applied

300 * 2 = P₂ * 100

P₂ = 300 * 2 / 100

P₂ =6 kPa

Therefore the Final Pressure of the gas is 6 kPa.

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2 years ago
An ordered list of chemical substances is shown.
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