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3 years ago

Just a curious question to the Chemists,

Chemistry

1 answer:

Vikki [24]3 years ago

8 0

Answer:

well the world would be shocked

Explanation:

and suprise

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What do these two changes have in common?

Arada [10]

Answer: Both are only physical changes. •

Explanation:

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2 years ago

A student dissolves 4.5 G of sodium chloride into 75 grams of water which of the following statements is correct regarding the r

Jobisdone [24]

"The vapor pressure will decrease and the boiling temperature will increase." When sodium chloride is added to water, the vapor pressure above the resulting salt solution is less than the vapor pressure above the pure water, and the boiling point of the salt solution will be greater than the boiling point of pure water. This results from the introduction of salt molecules to water, in which the salt solution needs a higher temperature for the vapor pressure to be equal to the pressure of the atmosphere.

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3 years ago

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What's the best way to get friends on this website?

krok68 [10]

To help them. Kindly.

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3 years ago

In an acid/base titration where NaOH(aq) is the titrant and HCl(aq) is the analyte, what is true about the moles of each reactan

ElenaW [278]

$\huge{\color{magenta}{\fcolorbox{magenta}{black}{\huge{\color{white}{\fcolorbox{aqua}{black}{✿ᴀɴsᴡᴇʀ✿}}}}}}$

A) The moles of NaOH are equal to moles of HCl.

Explanation:

NaOH + HCl ↦NaCl + H20

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3 years ago

Predict the boiling point of water at a pressure of 1.5 atm.

Lina20 [59]

Answer:

100.8 °C

Explanation:

The Clausius-clapeyron equation is:

$ln\frac{P_{1} }{P_{2}} =$ -Δ $\frac{H_{vap}}{r} (\frac{1}{T_{2}}-\frac{1}{T_{1}} )$

Where 'ΔHvap' is the enthalpy of vaporization; 'R' is the molar gas constant (8.314 j/mol); 'T1' is the temperature at the pressure 'P1' and 'T2' is the temperature at the pressure 'P2'

Isolating for T2 gives:

$T_{2}=(\frac{1}{T_{1}} -\frac{Rln\frac{P_{2}}{P_{1}} }{Delta H_{vap}}$

(sorry for 'deltaHvap' I can not input symbols into equations)

thus T2=100.8 °C

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3 years ago