Answer:
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Explanation:
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The molarity of a 250. mL H2SO4 solution that was made from a 20.0 mL of a 10.0 M stock solution is 0.8M.
<h3>How to calculate molarity?</h3>
The molarity of a solution can be calculated using the following expression:
CaVa = CbVb
Where;
- Ca = concentration of acid
- Cb = concentration of base
- Va = volume of acid
- Vb = volume of base
In this question;
- Ca = ?
- Va = 250mL
- Cb = 10M
- Vb = 20mL
Ca × 250 = 10 × 20
250Ca = 200
Ca = 200/250
Ca = 0.8M
Therefore, the molarity of a 250. mL H2SO4 solution that was made from a 20.0 mL of a 10.0 M stock solution is 0.8M.
Learn more about molarity at: brainly.com/question/2817451
Answer:
But it is not used as domestic fuel, due to several reasons : Hydrogen is not easily available and cost of production is high Unlike other gases, hydrogen is not readily available in the atmosphere. It requires processes like electrolysis of water for its production. This is a very costly process and time consuming.
Explanation:
If the solute fails to dissolve in the lauric acid, the molar mass that can be calculated based on the concentration of the solute dissolved in the lauric acid would be too low. This is because there are unaccounted masses that cannot be included in the calculation. This is a case of underestimation of the molar mass.
To avoid that this happens, ensure that all of the solute dissolves well in solvent by mechanical means (stirring, shaking, etc) or introducing heat.
