Question
2 The reaction between zinc carbonate and hydrochloric acid can be used to make zinc chloride. The equation for this reaction is: ZnCO_(3)(s)+2HCl(aq)arrow ZnCl_(2)(aq)+H_(2)O(l)+CO_(2)(g) 6.25 g of ZnCO_(3) was added to a solution containing 1.825 g of HCI. a Which reactant is in excess? Show your reasoning. __ b What mass of zinc chloride would you expect to make? __ (A, values: Zn=65,Cl=35.5,H=1)
Answer
4.7
(255 Votes)
Thaddeus
Expert · Tutor for 3 years
Answer
1.
is in excess.2. The mass of
produced is
.
Explanation
## Step 1: Write the balanced chemical equation:
## Step 2: Calculate the molar masses of the reactants and products:###
:
###
:
###
:
## Step 3: Calculate the number of moles of each reactant:### Moles of
:
### Moles of
:
## Step 4: Determine the limiting reactant:### According to the balanced equation, 1 mole of
reacts with 2 moles of
. Therefore, 0.05 moles of
would require:
Since we only have 0.05 moles of
,
is the limiting reactant.## Step 5: Calculate the mass of
produced:### Moles of
produced:
### Mass of
: