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Reil [10]
3 years ago
10

What is the mass of 2.60 ×10^22 formula units of NaOH (Molar mass = 40.0 g/mol)?

Chemistry
1 answer:
Nataliya [291]3 years ago
5 0

Answer:

1.728 g NaOH

Explanation:

Convert molecules to moles.

  • 2.60 ×10^22 molecules NaOH / 6.02 x 10^23 molecules per mol = .043 mol

Convert moles to grams.

  • .043 mol x 40.0 g/mol = 1.728 g
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What stresses will shift the reaction to increase the products
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Answer:

Change in molarity, temperature, volume/pressure depending on the conditions given

Explanation:

It really depends on the type of a reaction, however, we may apply general trends and see every possibility:

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7 0
3 years ago
You have 17 liters of gas at STP. If the temperature rises to 94C and while the volume decreases to 12 liters, what will the ne
fenix001 [56]

Answer:

P_2=1.90atm

Explanation:

Hello!

In this case, according to the ideal gas equation ratio for two states:

\frac{P_1V_1}{P_2V_2} =\frac{n_1RT_1}{n_2RT_2}

Whereas both n and R are cancelled out as they don't change, we obtain:

\frac{P_1V_1}{P_2V_2} =\frac{T_1}{T_2}

Thus, by solving for the final pressure, we obtain:

\frac{P_2V_2}{P_1V_1} =\frac{T_2}{T_1}\\\\P_2=\frac{T_2P_1V_1}{V_2T_1}

Now, since initial conditions are 1.00 atm, 273.15 K and 17 L and final temperature and volume are 94 + 273 = 367 K and 12 L respectively, the resulting pressure turns out to be:

P_2=\frac{367K*1.00atm*17L}{12L*273.15K}\\\\P_2=1.90atm

Best regards!

7 0
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