Answer:
A. They all contain oxygen
B. They all have a charge of 1-
Explanation:
Answer: There are 
molecules present in 6.71 moles of 
.
Explanation:
Given: Moles of = 6.71 mol
According to the mole concept, 1 mole of every substance contains 
molecules.
Therefore, molecules present in 6.71 moles are calculated as follows.
Thus, we can conclude that there are molecules present in 6.71 moles of .
Answer:-
95 grams
Explanation:-
Let the mass of water to be added be M
So total mass = 5 + M
So 5% of this solution has 5g of NaCl by mass.
∴ (M+5) x (5/100) = 5
M+5 = 5 x 100/5
M+5=100
M= 100-5
95
So amount of water to be added is 95 gram
Answer:
As the temperature of a liquid increases, the kinetic energy of its molecules also increases. As the kinetic energy of the molecules increases, the number of molecules transitioning into a vapor also increases, thereby increasing the vapor pressure.
Answer:
9.00 atm
For total pressure, you would add all the pressures together
