Explanation:
Electronic configuration =
1s² 2s² 2p⁶ 3s² 3p⁶
- Atomic number = 18
- Element = Argon
- Symbol = Ar
- Group = 18
- period = 3
Therefore,
Option C is correct✔
Explanation:
To solve this question, we need to use the following equation:
P1*V1/T1 = P2*V2/T2
Here we have:
P1 = 1560 mmHg
V1 = 45.0
T1 = 153 K
P2 = 1026 mmHg
V2 = ??
T2 = 253 K
So:
1560*45/153 = 1026*V2/253
458.8 = 4.055*V2
V2 = 113 L
Answer: Alternative "A" 113 L
The formula for molarity is:
M = n/V
or
M = mol/L
All you need to do is substitute the values you are given.
M = 4.25
L = 2.5
n = ?
4.25 = n/2.5
Multiply both sides by 2.5 to isolate n.
10.625 = n
There are 10.6 moles of H2So4 in the aqueous solution.