2.91 mol Al * ( 26.982 g Al / 1 mol Al) = 78.518 grams
Answer:
3 Pb(NO3)2 + Al2(SO4)3 = 2 Al(NO3)3 + 3 PbSO4
Explanation:
I think your equation is incorrect? This is balanced and the sum of coefficients is 9.
The answer is C Does it propaget
Answer:
2.4mol
Explanation:
In order to calculate numbers of moles we have to divide the given mass by the molar mass of the substance (ibuprofen) n= m/M
To calculate the molar mass we have
C13= 12*13= 156
H18= 1*18=18
O2= 16*2 =32
Molar mass M = 153+18+32= 206g
Given the mass m= 250g per tablet
Hence number of moles in one tablet is n= 250/206= 1.2 mol
Therefore the total number of ibuprofen you took is 1.2*2 (for the two tablets) = 2.4 moles
