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4 years ago

What is the largest mass that can be measured in the balance

Chemistry

1 answer:

Alexandra [31]4 years ago

5 0

610grams that is the maxium because if you do 100+500+10 which is 610

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The equilibrium constant, Kc, for the following reaction is 9.52×10-2 at 350 K. CH4 (g) + CCl4 (g) 2 CH2Cl2 (g) Calculate the eq

stiks02 [169]

Answer: The equilibrium concentration of $CH_4\text{ and }CCl_4$ is 0.377 M and equilibrium concentration of $CH_2Cl_2$ is 0.116 M

Explanation:

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$

For Methane:

Volume of solution = 1 L

Moles of methane = 0.377 moles

Putting values in above equation, we get:

$\text{Molarity of }CH_4=\frac{0.377mol}{1L}\\\\\text{Molarity of }CH_4=0.377M$

For carbon tetrachloride:

Volume of solution = 1 L

Moles of carbon tetrachloride = 0.377 moles

Putting values in above equation, we get:

$\text{Molarity of carbon tetrachloride}=\frac{0.377mol}{1L}\\\\\text{Molarity of carbon tetrachloride}=0.377M$

For the given chemical equation:

$CH_4(g)+CCl_4(g)\rightarrow 2CH_2Cl_2(g)$

The expression for $K_c$ for the given equation follows:

$K_c=\frac{[CH_2Cl_2]^2}{[CH_4][CCl_4]}$

We are given:

$K_c=9.52\times 10^{-2}\\[CH_4]=0.377M\\[CCl_4]=0.377M$

Putting values in above equation, we get:

$9.52\times 10^{-2}=\frac{[CH_2Cl_2]^2}{(0.377)\times (0.377)}$

$[CH_2Cl_2]=0.116M$

Hence, the equilibrium concentration of $CH_4\text{ and }CCl_4$ is 0.377 M and equilibrium concentration of $CH_2Cl_2$ is 0.116 M

8 0

3 years ago

Which of the following will sink in a container of mercury with a density of 13.6 g/mL?

Rashid [163]

We are given the density of mercury which is equal to 13.6 g/ml. Substances which sink in this metal should have densities higher than the density of the metal, otherwise they would float. The substance thta would sink in mercury is C. gold

4 0

4 years ago

Methane burns in oxygen to produce carbon dioxide and water. Which of the following represents a preliminary, unbalanced equatio

german

The correct option is: CH4 + O2 → CO2 + H2O.

In writing chemical equations, the reactants are usually written to the left of the equation of the reaction while the products are written to the right of the reaction. An arrow pointing in the right direction shows the direction of the reaction. In the question given above, methane and oxygen are the reactants while carbon dioxide and water are the products. The options that states the chemical reaction correctly is option 1.

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3 years ago

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describe in terms of ions, what happens during a neutralisation reaction- include the ionic equation for the formation of water

avanturin [10]

Basically, the hydrogen and oxygen react forming the liquid substance we all now know as WATER

8 0

3 years ago

5) Why do elements in the same family generally have similar properties?

Sever21 [200]

Answer: Elements in the same family generally have similar properties because they contain the same number of the electrons, for instance.

Hope this helped!

4 0

3 years ago