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3 years ago

What is the atomic mass of mercury?

Chemistry

2 answers:

wlad13 [49]3 years ago

8 0

The answer is 80 atomic mass

myrzilka [38]3 years ago

5 0

The atomic mass of mercury is 200.59 amu.

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Calculate the solubility of ( = ) in moles per liter. Ignore any acid–base properties. s = mol/L Calculate the solubility of ( =

BaLLatris [955]

This is an incomplete question, here is a complete question.

Calculate the solubility of each of the following compounds in moles per liter. Ignore any acid-base properties.

CaCO₃, Ksp = 8.7 × 10⁻⁹

Answer : The solubility of CaCO₃ is, $9.33\times 10^{-5}mol/L$

Explanation :

As we know that CaCO₃ dissociates to give $Ca^{2+}$ ion and $CO_3^{2-}$ ion.

The solubility equilibrium reaction will be:

$CaCO_3\rightleftharpoons Ca^{2+}+CO_3^{2-}$

The expression for solubility constant for this reaction will be,

$K_{sp}=[Ca^{2+}][CO_3^{2-}]$

Let solubility of CaCO₃ be, 's'

$K_{sp}=(s)\times (s)$

$K_{sp}=s^2$

$8.7\times 10^{-9}=s^2$

$s=9.33\times 10^{-5}mol/L$

Therefore, the solubility of CaCO₃ is, $9.33\times 10^{-5}mol/L$

4 0

3 years ago

“What types of friction occur between your bike tires and the ground when you ride over cement, through a puddle, and when you a

Kruka [31]

The right answer is= rolling, fluid, and sliding

4 0

3 years ago

If 2.1 moles of NaCl is dissolved in a solution with a total volume of 7.3 liters, what is the molarity of the solution? Round t

Arturiano [62]

Answer:

The molarity of the solution is 0.29 $\frac{moles}{liter}$

Explanation:

Molarity, or molar concentration, is a measure of the concentration of a solute in a solution, be it some molecular, ionic or atomic species. It is defined as the number of moles of solute that are dissolved in a given volume.

Molarity is calculated as the quotient between the number of moles of solutes and the volume of the solution:

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

Molarity is expressed in units $\frac{moles}{liter}$ .

In this case:

number of moles of solute= 2.1 moles
volume= 7.3 liters

Replacing:

$Molarity=\frac{2.1 moles}{7.3 liters}$

Molarity= 0.29 $\frac{moles}{liter}$

The molarity of the solution is 0.29 $\frac{moles}{liter}$

5 0

2 years ago

Read 2 more answers

Which material does not melt at any temperature?

lord [1]

Answer: Option (c) is the correct answer.

Explanation:

Wood is a mixture of different substances. Primarily it consists of cellulose, lignin, water etc.

When we heat wood then all these substance oxidize into the atmosphere even before they could melt.

Whereas iron, sodium chloride and ethanol all are the substances which can melt at any temperature.

Thus, we can conclude that out of the given options, wood, a mixture of different substances is a material that does not melt at any temperature.

6 0

3 years ago

Pls do this and don't just do it for the points pls help me I need it

White raven [17]

Answer:

what do you want me to do my friend my best friend who is a dreamer

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3 years ago