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2 years ago

Which of these is an example of a literal equation?

Chemistry

2 answers:

Ganezh [65]2 years ago

8 0

Answer:

Explanation:

well if you calculate it,

12 - 9 = 3x

3 = 3x

x = 1

you can find the answer for x but in the other choices you have no inputs for the values therefore all of them are wrong, and D is just wrong because 6 + 30 doesnt equal 62

Papessa [141]2 years ago

4 0

6 + 30 = 62 is literal equation.

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Will give lots of points if answered correctly. Determine the kb for chloroform when 0.793 moles of solute in 0.758 kg changes t

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Answer: The value of $K_{b}$ for chloroform is $3.62^{o}C/m$ when 0.793 moles of solute in 0.758 kg changes the boiling point by 3.80 °C.

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Given: Moles of solute = 0.793 mol

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As molality is the number of moles of solute present in kg of solvent. Hence, molality of given solution is calculated as follows.

$Molality = \frac{no. of moles}{mass of solvent (in kg)}\\= \frac{0.793 mol}{0.758 kg}\\= 1.05 m$

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$\Delta T_{b} = i\times K_{b} \times m$

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$K_{b}$ = molal boiling point elevation constant

Substitute the values into above formula as follows.

$\Delta T_{b} = i\times K_{b} \times m\\3.80^{o}C = 1 \times K_{b} \times 1.05 m\\K_{b} = 3.62^{o}C/m$

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