How many moles of pb(so4)2 are equivalent to 186.7 g of pb(so4)2

Answer : The number of moles of is 0.6156 moles.

Solution : Given,

Mass of = 186.7 g

Molar mass of = 303.256 g/mole

Formula used :

Now we have to calculate the moles of .

Therefore, the number of moles of is 0.6156 moles.

ugh fiel iente of insistí is did kiwis jaj

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2