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Gnoma [55]
3 years ago
9

if you are traveling at 65 mph, how many feet will you have traveled in 22 minutes? Answer in dimensional analysis please.

Chemistry
1 answer:
Mashutka [201]3 years ago
4 0

Answer:

125840ft

Explanation:

65miles=343200ft

343200/60

=5720ft/min

22×5720

=125840

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A mixture of 14.0 grams of H2, 84.0 grams of N2, and 64.0 grams of O2 are placed in a flask. The partial pressure of the O2 is 7
Hitman42 [59]

Answer:

P_{tot}=465.27torr

Explanation:

Hello there!

In this case, according to the given information, it will be possible for us to use the Dalton's law, in order to solve this problem. However, we first need to calculate the mole fraction of oxygen by firstly calculating the moles of each gas:

n_{H_2}=\frac{14.0g}{2.02g/mol} =6.93mol\\\\n_{N_2}=\frac{84.0g}{28.02g/mol}=3.00mol\\\\n_{O_2}=\frac{64.0}{16.00g/mol}  =2.00mol

Next, we calculate such mole fraction as follows:

x_{O_2}=\frac{2}{6.93+3+2} =0.168

Then, given the following equation:

P_{O_2}=P_{tot}*x_{O_2}

So we solve for the total pressure as follows:

P_{tot}=\frac{P_{O_2}}{x_{O_2}} \\\\P_{tot}=\frac{78.00torr}{0.168} \\\\P_{tot}=465.27torr

Regards!

6 0
3 years ago
List 2 units of mass
marishachu [46]

Kilograms and grams. They're both commonly used to measure mass.

7 0
4 years ago
In a 4.00 L pressure cooker, water is brought to a boil. If the final temperature is 115 °C at 3.10 atm, how many moles of steam
Olenka [21]

Answer: 0.39mol of the steam are in the cooker.

Explanation:Please see attachment for explanation

7 0
4 years ago
Which of the following would you expect to be ionic?
belka [17]

Answer:

Co

H20 somewhat ionic as well as covalent

SO2 is covalent

K2O is ionic

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5 0
4 years ago
What is the process in which coal is heated in the absence of air? Name the process.
olya-2409 [2.1K]

Answer:

The process of heating coal in the absence of air is called the destructive distillation of coal. ... When coal is heated in the absence of air, a number of products are obtained. 0.0.

Explanation:

5 0
4 years ago
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