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3 years ago

What is the pressure in atmospheres exerted by a 0.500 mole sample of nitrogen gas in a 10.0 L container at 25.0°C?

Mathematics

1 answer:

drek231 [11]3 years ago

6 0

Answer:

1.2218 atm

Step-by-step explanation:

From ideal gas formula,

PV=nRT

Where n= number of moles

V= volume

T= temperature=25.0°C

= (273 + 25) = 298 K

R= gas constant = 0.082 l atm /K mol.

Making P subject of formula we have

P= [nRT] /V

Then substitute the values we have

P= [0.5 x 0.082 x 298] / 10

P= 1.2218 atm

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One number is 4 less than 3 times a second number. If 3 more than two times the first

Lelechka [254]

Answer:

The first number (x) = 8

Step-by-step explanation:

Let x = the first number

Let y = the second number

x = 3*y - 4

2x + 3 - 2y = 11 Subtract 3 from both sides

2x - 2y = 11 - 3

2x - 2y = 8 Divide by 2

x - y = 4 Add y to both sides

x = y + 4 Now go back to the very first equation. Substitute for x

y + 4 = 3y - 4 Subtract y from both sides

4 = 3y - y - 4

4 = 2y - 4 Add 4 to both sides

4 + 4 = 2y

8 = 2y Divide by 2

8/2 = y

y = 4

x = 3y - 4

x = 3*4 - 4

x = 12 - 4

x = 8

7 0

3 years ago

Which statement about the histogram is true a The majority of Maria's runs were between five and six miles. b At least 15 of Mar

kirill115 [55]

Answer:D

Step-by-step explanation:

7 0

3 years ago

In order to raise funds to attend upcoming competitions, the debate team is selling hot chocolate at a football game. They hope

konstantin123 [22]

Answer:

125 cups

Step-by-step explanation:

We're given a total of 250 as the goal, and the product being sold is 2 per, hence, we'll use the following inequality:

$2x\geq 250$

To find the amount of hot chocolate they need to sell to satisfy the inequality, we solve for x:

$2x=250\\x=125$

The debate team has to sell atleast 125 of the product to meet their goal.

<em>Hope this helped! Have a good day.</em>

6 0

3 years ago

Simplify 6/10 + 8.75?

PilotLPTM [1.2K]

First do 6 divided by 10

then add 8.75 to that

6 0

4 years ago

Read 2 more answers

Slope for (2,-5) (1,5)

Readme [11.4K]

Answer:

Slope (m) = 0

Step-by-step explanation:

8 0

3 years ago