Answer:
P2 = 226.6 kPa (Approx)
Explanation:
Given:
Temperature t = 25ºC
Old volume v1 = 145 ml
Old pressure p1 = 125 KPa
New volume v2 = 80 ml
Find:
New pressure p2
Computation:
p1v1 = p2v2
125 x 145 = P2 x 80
P2 = 226.6 kPa (Approx)
Use afbau rules to fill in electrons for the Ununoctium(118) element. This is called electron configuration, so you ll have to fallow 3 rules:
- first electrons with same spin.
- first pair the eletrons in the same orbital (every level/row of dots)
- 3d > 4s... there is crossings you will notice, meaning 3d is an orbital level with higher energy in compare to 4s. So it is written 4s3d4p insetead of 3d4s4p ...
You complete it by adding electrons following example:
2p3 woud be: (|)(|)(|), and
2p6 would be: (||)(||)(||)
So in this questionfor Uuo you just have to fill every dot with two straight lines representing electrons...
Melting point- the temperature at which a substance has changed from a solid to a liquid
freezing- the temperature at which a substance chanes from liquid to a solid
boiling point- the temperature at which a substance changes from a liquid to a gas phase
I think number 47 on the map would be New Mexico i hope i helped out
Answer is: the molar mass of gas is 82.83 g/mol.
m(gas) = 55.50 g; mass of gas.
V(gas) = 15.0 L; volume of gas.
Vm = 22.4 L/mol; molar volume of gas on STP.
n(gas) = V(gas) ÷ Vm.
n(gas) = 15 L ÷ 22.4 L/mol.
n(gas) = 0.67 mol; amount of gas.
M(gas) = m(gas) ÷ n(gas).
M(gas) = 55.5 g ÷ 0.67 mol.
M(gas) = 82.83 g/mol.