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Luba_88 [7]
3 years ago
12

Typically, a solid chloride unknown (not the AgCl product) for analysis is dried in an oven to remove absorbed water before the

analysis. How would the % Cl determined be affected (Would the calculated %Cl be too high or too low?) if the unknowns had not been dried? Explain
Chemistry
1 answer:
tatyana61 [14]3 years ago
7 0

Answer:

%Cl would be too high if not dried.

Explanation:

Cl (chlorine) is a liquid. During the process of drying AgCl, the chlorine particles evaporate and chlorine is lost.

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Calculate the morality for the following<br> 10.5 kg of Na2 SO4. 10H2O in 18.60 L
Serggg [28]

Answer:

1.75M

Explanation:

The problem deals with finding the molarity of the given compound.

 The compound is:

             Na₂SO₄.10H₂O

Mass of the compound  = 10.5kg  = 10500g

Volume of the compound  = 18.6L

Molarity is the number of moles of solute in a solution;

     Molarity  = \frac{number of moles }{volume}  

 Number of moles  = \frac{mass}{molar mass}  

 Molar mass of   Na₂SO₄.10H₂O  = 2(23) + 32 + 4(16) + 10[2(1) + 16]

                                                       = 322g/mol

 Now;

    Number of moles  = \frac{10500}{322}   = 32.6mole

So;

  Molarity  = \frac{32.6}{18.6}   = 1.75M

5 0
3 years ago
The molar mass of barium nitrate (ba(no3)2) is 261.35 g/mol. what is the mass of 5.30 × 1022 formula units of ba(no3)2? 0.0900 g
liberstina [14]

Molar mass is the ratio of the mass to that amount of the substance. The mass of the barium nitrate in the formula unit is 23.0 grams.

<h3>What is mass?</h3>

The mass of a substance is the product of the molar mass of the compound and the number of moles of the compound.

Given,

Molar mass of barium nitrate = 261.35 g/mol

If, 6.022 \times 10^{23} have a mass of 261.35 g/mol then, 5.30 \times 10^{22} formula units will have a mass of,

\begin{aligned}& = \dfrac{261.35 \times 5.30 \times 10^{22}}{6.022\times 10^{23}}\\\\&= 23.0\;\rm gm\end{aligned}

Therefore, option C. 23.0 gm is the mass of barium nitrate.

Learn more about mass here:

brainly.com/question/24958554

6 0
2 years ago
Which equation shows how to calculate how many grams (g) of KCL would be produced from 4 mol KOH the balanced reaction is mgcl2
Tresset [83]
First of all, we need tô calculate moles of KCl
next, mass=mol×molar mass

8 0
4 years ago
Read 2 more answers
True or false. test tubes, spot and/or well plate will be used to combine substances in bottles and form a reaction. group of an
tresset_1 [31]

Test tubes, spot and/or well plate will be used to combine substances in bottles and form a reaction is referred to a true statement.

<h3>What is a Chemical reaction?</h3>

This is the reaction which involves substances known as reactants combining new substances which are referred to as products. This is usually done in the laboratory and equipment and tools such as test tubes, thermometer etc are used.

Test tubes, spot and/or well plate are often used to combine substances in bottles and form a reaction which must be handled with care to ensure it doesn't spill.

This is therefore the reason why the option true was chosen as the most appropriate choice.

Read more about Chemical reaction here brainly.com/question/11231920

#SPJ1

4 0
2 years ago
Necesito las caracteristicas fisicas y quimicas de la teoria inorganica del petroleo
Margarita [4]

Answer:

de lapora en ciesta coma bodre sin una jacsinis loadera comastora jingla belaa

Explanation:

7 0
3 years ago
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