3 years ago

What’s the difference in kinetic energy of solids, liquids, and gases.

1 answer:

4 0

Answer:

Solids have the lowest kinetic energy so vibrate very little. Liquids have more kinetic energy so particles slide past each other. Gases have the most kinetic energy so fly around in the air

Explanation:

Brainliest much appricated

Have a good day!

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If a buffer solution is 0.130 M in a weak acid (K_a = 1.7 x 10^-5) and 0.590 M in its conjugate base, what is the pH?

Serggg [28]

Use the Henderson-Hasselbach equation:
pH = pKa + log[base]/[acid]
pH = -log(1.7 x 10^-5) + log(0.590/0.130) = 5.43

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3 years ago

What is the volume of 300. g of mercury vapor at 822K and 0.900 atm?

Dominik [7]

Answer:

112.2L

Explanation:

Volume (V) = 300g

Temperature (T) = 822K

Pressure (P) = 0.9atm

using the ideal gas equation;

$PV = nRT\\\\ V = \frac{nRT}{P}$

Molar gas constant (R) = $0.0821L.atm/mol.K$

Mole (n) = $\frac{Mass (m)}{Molar mass (M)}$ Molar mass of Mercury = 200.59g/mol

$n = \frac{300g}{200.59 g/mol} \\$

= 1.496mol

Now, the volume can be calculated;

V = $\frac{1.496mol* 0.0821L.atm/mol.K*822K}{0.9atm}$

∴Volume of mercury = $112.2L$

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2 years ago

I need help ASAP please giving brainliest!!

Mashutka [201]

Explanation:

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3 years ago

Classify the type of this chemical reaction: C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g)

sweet-ann [11.9K]

The given reaction is a combustion reaction, since a hydrocarbon is burning in presence of oxygen

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3 years ago

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How many grams are in 0.5 moles C6H12O6? Show work please!

Nitella [24]

Molar mass of C6H12O6 = 6x12 + 12x1 + 6x16 = 180g

SO mass of 1 mole of C6H12O6 = 180g

mass of 0.5 mole of C6H12O6 = 0.5 x180g = 90g

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3 years ago