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2 years ago

Lisa’s book measures 40 cm x 10 cm x 2 cm. What is the volume of her book

Chemistry

2 answers:

notsponge [240]2 years ago

8 0

The volume would be 800 because volume=lxwxh

White raven [17]2 years ago

3 0

$\text{Hello there! :)}$

$\large\boxed{V = 800cm^{3} }$

$\text{Formula for the volume of a rectangular prism:}\\\\V = l * w * h\\\\\text{In this instance:}\\\\l = 40 cm\\w = 20 cm\\h = 10cm\\\\\text{Use the formula to solve for the volume:}\\V = 40 * 10 * 2\\\\V = 800cm^{3}$

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BARSIC [14]

Answer:

$2.557\times 10^{-2}\ molal.$

Explanation:

Given , molarity of glycerol= $2.55\times 10^-^2\ M.$

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Therefore, No of moles of glycerol= $molarity\times volume\ in\ liters=2.55\times 10^-^2\ moles.$

Now, volume of water needed, V=998.8 mL.

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1 year ago

A 23.74-mL volume of 0.0981 M NaOH was used to titrate 25.0 mL of a weak monoprotic acid solution to the stoi- chiometric point.

Dmitrij [34]

Answer:

Molar concentration of the weak acid solution is 0.0932

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Using the formula: $\frac{C_aV_a}{C_bV+b} = \frac{n_a}{n_b}$

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Since the acid is monopromatic, 1 mole of the acid will require 1 mole of NaOH. Hence, na = nb = 1

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= 0.093155 M

To 4 significant figure = 0.0932 M

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