Since the volume is constant,
p1/t = p2/ t
210/120 = p2/150
p2= 262.5kpa
According to your equation, for every mole of iron oxide (Fe2O3), it takes 3 moles of carbon monoxide (CO). So for 1.75 moles, it takes 3 times as many moles of CO.
1.75 x 3 = 5.25 moles of CO.
I think your product is CO2. Dalton's Law sayeth that the coefficients tell us the ratios of moles. So if you hve 1.75 moles of Fe(III)oxide, 3*1.75 moles of CO are needed (in theory) to react completely. The answer is requested in moles, so you need go no further.
Answer:
B. Neptune. Neptune is next to Uranus
it was attributed to Alexander Fleming
Answer:
Number of moles = 0.75 mol
Mass = 118.5 g
Explanation:
Given data:
Number of moles of KMnO₄ = ?
Mass in gram = ?
Molarity of KMnO₄ = 0.25 M
Volume of KMnO₄ solution = 3 dm³ (3 L)
Solution:
Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.
Formula:
Molarity = number of moles / L of solution
0.25 M = number of moles / 3 L
Number of moles = 0.25 M× 3 L
M = mol/L
Number of moles = 0.75 mol
Mass in gram:
Mass = number of moles × molar mass
Mass = 0.75 mol × 158 g/mol
Mass = 118.5 g
