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3 years ago

Aballoon is filled with 3.60 L of H2 gas at STP. If the balloon is

Chemistry

1 answer:

AVprozaik [17]3 years ago

5 0

Answer:

the new volume is 1.49 L

Explanation:

stp is 0 degrees C and 1 atm.

you need to use the combined gas law formula and solve for v2

i converted the C to Kelvin

v2=p1(v1)(t2)/p2(t1)

v2=1atm(3.6L)(283.15K)/2.5atm(273.15K)

v2=1.49

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Fill in the left side of this equilibrium constant equation for the reaction of benzoic acid (HC_6H_5CO_2) with water.

il63 [147K]

Answer:

[C₆H₅COO⁻][H₃O⁺]/[C₆H₅COOH] = Ka

Explanation:

The reaction of dissociation of the benzoic acid in water is given by the following equation:

C₆H₅-COOH + H₂O ⇄ C₆H₅-COO⁻ + H₃O⁺ (1)

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Where the dissociation constant of the acid (Ka) is equal to the ratio of the concentration of the dissociated forms of the acid, [A⁻][H⁺], and the concentration of the acid, [HA].

So, starting from the equations (2) and (3), the constant equation for the dissociation reaction of benzoic acid in water, of the equation (1), is:

$K_{a} = \frac{[C_{6}H_{5}COO^{-}][H_{3}O^{+}]}{[C_{6}H_{5}COOH]}$

I hope it helps you!

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3 years ago

If the mass is 10g and the volume is 2cm3 what is the density?

SSSSS [86.1K]

Answer:

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Explanation:

The density (δ) is the ratio between the mass and the volume of a compound:

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