The molarity is a concentration unit which defined as the number of moles of solute divided by the number of liters of solution. So the molarity of the solution is 3/2=1.5 mol/L.
Answer:
A. 2 bonds
Explanation:
If you see a charch of ci20 it would easily show the answer.
(1) 14C also known as Carbon-14, is used to radio-date organic materials as well as earth materials.
Answer:
Heating this gas to 55 °C will raise its volume to 6.87 liters.
Assumption: this gas is ideal.
Explanation:
By Charles's Law, under constant pressure the volume
of an ideal gas is proportional to its absolute temperature
(the one in degrees Kelvins.)
Alternatively, consider the ideal gas law:
.
is the number of moles of particles in this gas.
should be constant as long as the container does not leak.
is the ideal gas constant.
is the pressure on the gas. The question states that the pressure on this gas is constant.
Therefore the volume of the gas is proportional to its absolute temperature.
Either way,
.
.
For the gas in this question:
- Initial volume:
.
Convert the two temperatures to degrees Kelvins:
- Initial temperature:
. - Final temperature:
.
Apply Charles's Law:
.
The atomic number, the number of protons and the number of electrons.