Answer:B:63.75
Explanation:(5/8 x 63)+(3/8 x 65)=(0.625 x 63)+(0.375 x 65)=63.75
Answer:
b) 3.000 mol S
Explanation:
using Avogadro's constant
1 mol = 6.02 × 10^23 atoms
we need to find the number of moles for 1.806 × 10^24
x = 1.806 × 10^24
putting it together we now have:
1 mol = 6.02 × 10^23 atoms
x = 1.806 × 10^24
cross multiply
6.02 × 10^23 x = 1.806 × 10^24
divide both sides by 6.02 × 10^23
x = (1.806 × 10^24) ÷ (6.02 × 10^23) = 3 mol
<span>We would use the ideal gas equation. PV = NRT
No of moles of ag2o = 30/ 231.735 = 0.12944
The chemical reaction is given by
2 Ag2O = 4 Ag + O2
2* 0.12944 of Ag2O requires 0.12944 of O2
So we have P * 1 = 0.258 * 8.2 * 450
P = 952.02 atm</span>