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Lostsunrise [7]
3 years ago
9

If a certain compound has a formula XCl₃ what is the valency of X?

Chemistry
1 answer:
asambeis [7]3 years ago
6 0

The general form of a compound can be written in the form of:

[X(a) Y(b)] ^ c

Where a and b are subscripts, and c is the superscript of the whole formula.

The relationship that we can derived here between the constants is:

(valence of X) * a + (valence of Y) * b = c

Since the formula obviously has no superscript, therefore c = 0. We also know in chemistry class that the valence of Cl is -1, therefore:

valence of X * 1 + (-1) * 3 = 0

valence of X - 3 = 0

<span>valence of X = 3</span>

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A vial is filled with room temperature water, and blue cold water has been placed at the bottom. A warm water bag sits next to t
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What is the Ionic Equation and Net Ionic Equation for BaCl2 + Al2(SO4)=&gt; 3Ba(SO4) + 2AlCl3?
Nikitich [7]
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8 0
3 years ago
What is the molarity (M) of .5 liter of a solution that has 205 g of NaCl dissolved in it?
jeka94

Answer:

<h2>Molarity = 7 mol / L</h2>

Explanation:

Since the mass of NaCl and it's volume has been given we can find the molarity by using the formula

<h3>C =  \frac{m}{M \times v}</h3>

where

C is the molarity

m is the mass

M is the molar mass

v is the volume

From the question

v = 0.5 L

m = 205 g

We must first find the molar mass and then substitute the values into the above formula

M( Na) = 23 , M( Cl) = 35.5

Molar mass of NaCl = 23 + 35.5 =

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So the molarity of NaCl is

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C = 7.00854

We have the final answer as

<h3>Molarity = 7 mol / L</h3>

Hope this helps you

8 0
3 years ago
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