Answer:
P(Ar) = 358.8 mmHg
Explanation:
Given data:
Total pressure of gas = 1380 mmHg
Moles of CO₂ = 1.27 mol
Moles of CO = 3.04 mol
Moles of Ar = 1.50 mol
Partial pressure of Ar = ?
Solution:
Formula:
P(Ar) = [n₁/nt] Pt .........(1)
n₁ = moles of Ar
nt = total number of moles
Pt = total pressure
Now we will calculate the total number of moles.
nt = 1.27 mol +3.04 mol +1.50 mol
nt = 5.81 mol
Now we put the values in formula (1)
P(Ar) = [n₁/nt] Pt
P(Ar) = [1.50/5.81] 1380 mmHg
P(Ar) = 0.26 ×1380 mmHg
P(Ar) = 358.8 mmHg
Answer:
The answer is <u>C. As2O3</u>
Explanation:
0.600 gr of Arsenic and Oxygen.
0.454 gr of Arsenic
So, 0.146 gr of Oxygen will be in the compound.
- First: The grams of each element must be divided by its atomic weight:
- 0.454 gr As / 74.92u As = 0.00606
- 0.146 gr O / 16u O = 0.009125
- Both results must be divided by the lowest number found:
- 0.009125 / 0.00606 = 1.5 O
- As one of the values is not an integer then both results are multiplied until both give an integer:
- Then the answer is given:
Answer:
Second step of the mechanism is slow step.
Explanation:
The given chemical reaction is as follows
The mechanism of the reaction is as follows.
The rate of the reaction.
Therefore, Step -2 must be slow.
It is Balanced but not in its lowest form.
This is because the coefficients could have been reduced to 2,1&3.
Answer:
Explanation:
Hello!
In this case, since calcium's oxidation state when forming ionic bonds is +2 and sulfur's oxidation state when bonding those bonds is -2, for the required formula we write:
Now, since they have the same charge number, we infer the ionic compound formed when they bond is calcium sulfide:
Best regards!