Answer:
kg & m/s
Explanation:
mass is measured in kg and speed is measured in m/s
Answer:
0.216
Explanation:
The mole fraction of HCl is the number of moles of HCl (0.99) divided by the total number of moles in the solution.
mole fraction = (0.99)/(0.99 +3.6) = 0.2157
The mole fraction of HCl is about 0.216.
If your talking about mole. p
1 mole of water weighs 18 g
Therefore 0.5 mole of water weighs 9 g
According to Avagadro,
1 mol = 6.023 **10^23
atoms
So,
0.5 mol = 3.0115 **10^23
molecules of water
Each water molecule contains 2 hydrogen atoms .
Therefore
2** 3.00115**10^23
atoms of hydrogen are present in 9g of water
Answer:
The answer is
6.02⋅1023
S: 2 e-
p: 6 e-
d: 10 e-
f: 14 e-