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Daniel [21]
3 years ago
10

The gas in a 350 mL balloon has a pressure of 0.85 atm. If the temperature remains constant, what will be the pressure of the ga

s in the balloon if the volume increases to 450 mL?
Chemistry
1 answer:
Lina20 [59]3 years ago
8 0

Answer:

<h2>0.66 atm </h2>

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we're finding the new pressure

P_2 =  \frac{P_1V_1}{V_2}  \\

We have

P_2  =  \frac{350 \times 0.85}{450}  =  \frac{297.5}{450}  \\  = 0.661111...

We have the final answer as

<h3>0.66 atm</h3>

Hope this helps you

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Explanation:

This question involves the Elevation of boiling point

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Moles NaCl : mass/ molar mass --> 130g /58,45 g/m = 2,22 m

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3 years ago
What does the axiom "like dissolves like” mean? There
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Solution:

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Henderson–Hasselbalch equation describes the derivation of pH as a measure of acidity by using pKa, the negative log of the acid dissociation constant in biological and chemical systems. The equation is also useful for estimating the pH of a buffer solution and finding the equilibrium pH in acid-base reaction.  

The equation is given by:

 

Here, [HA] is the molar concentration of the un dissociated weak acid, [A⁻] is the molar concentration (molarity, M) of this acid's conjugate base and pKa is −log10 Ka where Ka is the acid dissociation constant, that is:

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