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4 years ago

5

What is the scientific explanation of boiling point elevation?

1 answer:

nadezda [96]4 years ago

5 0

Explanation:

Boiling-point elevation describes the phenomenon that the boiling point of a liquid (a solvent) will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent. This happens whenever a non-volatile solute, such as a salt, is added to a pure solvent, such as water.

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Mama L [17]

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3 years ago

A student successfully neutralizes 25.0mL of HCl(aq) during a titration experiment with 18.5mL of 0.150M NaOH(aq). What is the c

son4ous [18]

Answer:

The concentration is 0.111 M.

Explanation:

Use dimensional analysis to solve the problem. Since both HCl and NaOH are strong, the dissociate completely in solution.

For this neutralization, the reaction is HCl + NaOH = NaCl + HOH

18.5 mL x $\frac{1 L}{1000 mL}$ x $\frac{0.150 moles NaOH}{1 L}$ x $\frac{1 mole HCl}{1 mole NaOH}$ = 0.002775 moles HCl

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3 years ago

What is the full electric configuration for cadmium?

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Explanation:

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4 years ago

What is the % yield when 12g of Mg react with HCl to produce 0.2g of H2?

goblinko [34]

Answer:

The yield is 20 %.

Explanation:

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(12 g Mg) / (24.30506 g Mg/mol) x (1 mol H2 / 1 mol Mg) x (2.015894 g H2/mol) = 0.9953 g H2.

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3 years ago

The net force on an object that is accelerating at a rate of 4 m/sec is 255 N. What is the mass of the object in kg?

aleksklad [387]

Answer:

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