Answer:
Mw = 179.845 g/mol
Explanation:
∴ w = 26.2 g
∴ 1 mol = 6.02 E23 molecules.......Avogadro's number
⇒N° moles = 8.77 E22 molecules * ( mol / 6.02 E23 molecules ) = 0.146 mol
⇒ Mw = 26.2 g / 0.146 mol = 179.845 g/mol
Answer: How many moles of HCl was produced?
⇒ 0.261 moles of HCl
How many moles of MgCl2 reacted?
⇒ 0.131 moles of MgCl2
What mass of MgCl2 reacted?
⇒ 12.4 g MgCl2
Explanation:
i just did it
The answer is
<span>2PbS(s) + 3O2(g) = 2PbO(s) + 2SO2(g)
Your answer is not yet balanced because you have 3 oxygen atoms. it should be balanced by multiplying both side by 2 such as the balanced equation I made. To check it, I will explain why your answer is not yet balanced.
check: (from your equation)
</span> 1-Pb-1
1-S-1
2 -O-3
the difference between the reactant and the product of Oxygen will prove that it is not yet balanced.
If you use 2PbS(s) + 3O2(g) = 2PbO(s) + 2SO2(g), to check it:
2-Pb-2
2-S-2
6 -O-6
then this is now balance
Explanation:
The given data is as follows.
= 250 mL, 
= 750 mL
= 
= 35 + 273 K = 308 K
= 35 + 273 K = 308 K
= 0.55 atm, 
= 1.5 atm
P = ? , V = 10.0 L
Since, temperature is constant.
So, 
= PV
Now, putting the given values into the above formula as follows.
= PV
= 
P = 0.126 atm
As, 1 atm = 760 torr. So, 
= 95.76 torr.
Thus, we can conclude that the final pressure, in torr, of the mixture is 95.76 torr.
