2 years ago

What is the molar mass of a gas if 1.30g of the gas has a volume of 245mL at STP? ...?

1 answer:

5 0

First, we assume this as an ideal gas so we use the equation PV=nRT. Then, we use the conditions at STP that would be 1 atm and 273.15 K. We calculate as follows:

PV= nRT
PV= mRT/MM

1 atm (.245 L) =1.30(0.08206)(273.15) / MM
MM = 118.94 g/mol <--- ANSWER

You might be interested in

What units do physicists use to measure heat energy and electrical energy?

vagabundo [1.1K]

Physicists use certain units to measure heat energy and electrical energy:

- Joule (Watt sec )
- Watt - hour
- Kilowatt- hour
- Calorie

Hope this helps!

6 0

3 years ago

The magnetic circuit below is excited by a 100-turn coil wound over the central leg. The mean length of the central leg is 5.5cm

Dafna11 [192]

Answer:

Hello your question is incomplete attached below is the complete question and solution

answer;

attached below

Explanation:

Given data:

100-turn coil

mean length of central leg = 5.5 cm

mean length of outer paths = 15.5 cm

relative permeability = 2000

cross sectional area ( A ) = 1 cm^2

distance x = 1 cm

attached below is a detailed solution

3 0

2 years ago

What is the amount of thermal energy needed to raise the temperature of 1 of a substance by ?

Goryan [66]

Answer:

It is the amount of energy required to raise the temperature of one gram of a substance by one degree Celsius.

Explanation:

Hope this helps and have a good day

7 0

2 years ago

Grant sprints 50m to the right with an average velocity of 3.0 m/s

zlopas [31]

I need help with my math

6 0

3 years ago

What temperature can a solar flare reach

balandron [24]

It reaches 10 or 20 million degrees kelvin but it can get as high as 10 million degrees kelvin

5 0

3 years ago