consider the letters in the word chemistry. use them to make as many word " compounds " as is possible with 9 elements.
2 answers:
You might be interested in
Answer : The molality of the solution is, 0.788 mole/Kg
Solution : Given,
Mass of solute, = 25 g
Mass of solvent, = 125 g
Molar mass of solute, = 253.8 g/mole
Molality : It is defined as the number of moles of solute present in one kilogram of solvent.
Formula used :
Now put all the given values in this formula, we get the molality of the solution.
Therefore, the molality of the solution is, 0.788 mole/Kg
Answer:
Bullet has more kinetic energy then baseball.
Explanation:
Mass of the bullet , m = 150 g = 0.150 kg
Velocity of the bullet = v = 440 m/s
Kinetic energy =
Kinetic energy of the bullet = K.E
Mass of the baseball, m' = = 0.36146 kg
(1 ounce = 0.0283495 kg)
Velocity of the baseball= v' = 105.1 mph
1 mile = 1609.34 m
1 hour = 3600 seconds
Kinetic energy of the baseball = K.E'
14,520 Joules > 398.83 Joules
K.E > K.E'
Bullet has more kinetic energy then baseball.