Molar mass of A l 2 (S O 4 ) 3 = 342.15 g/mol
7.2g/ 342.15 g/mol
you can get number of moles.
then multiply that by12
In a solid, the molecules are packed together, keeping shape. Liquid molecules are looser, and fit to the container they are in. Gas molecules are sporadic, and expand to fit their container
<u>Answer:</u> The temperature will be 1501.47 K.
<u>Explanation:</u>
To calculate the temperature of the gas when pressure is increased, we use the equation given by Gay-Lussac's Law.
This law states that pressure is directly proportional to the temperature of the gas at constant volume and number of moles.
Mathematically,
or,
where,
are the initial pressure and initial temperature of the gas.
are the final pressure and final temperature of the gas.
We are given:
Putting values in above equation, we get:
Hence, the temperature will be 1501.47 K
Answer:
176.36g/mol
Explanation:
It was given that:
Mass of ascorbic acid=0.552 g
Volume of water=20.0 mL
Concentration of KOH=0.1103 M
Volume of KOH=28.42 mL. = 0.02842l
pH of solution at 10.0 mL= 3.72
At equivalence point, number of moles of acid is equal to the number of moles of base.
Number of moles of base= (KOH) x Volume
=0.1103 x 0.02842 L
=0.00313 moles.
Therefore number of miles of acid= 0.00313moles
No of moles= Mass/molar mass
Molar Mass= Mass of Acid/ No of moles of acid
= 0.552g/0.00312moles
= 176.36g/mol
Answer:
Planets, asteroids, and comets
Explanation:
