Problemas
You run an experiment according to this equation: 2HCl+CaCO_(3)-gt H_(2)O+CaCl_(2) +CO_(2) When running your lab you started with 62 .16 grams of HCI and 50.18 grams of CaCO_(3) If, after the reaction finishes, your products have a total mass of 80.10, what was the percent yield? Round your answer to the nearest 0.01 and include units! Your Answer: square square Answer units
Roztwór
Cristina
professionell · Tutor durante 6 años
4.6
(225 Votos)
Respuesta
###
Explicación
## Step 1: Calculate the molar masses of reactants and products### The molar mass of
is
, and the molar mass of
is
. These values will be used to determine the limiting reactant and theoretical yield.## Step 2: Determine moles of each reactant### Moles of
. Moles of
.## Step 3: Identify the limiting reactant### From the balanced equation,
reacts with
. Therefore, the required moles of
for
is
. Since
is available,
is the limiting reactant.## Step 4: Calculate the theoretical yield of products### The total mass of products equals the mass of reactants due to the law of conservation of mass. Thus, the theoretical yield is the sum of the masses of
and
: Theoretical yield =
.## Step 5: Calculate the percent yield### Percent yield is given by
. Substituting the values:
.