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Describe the effect on the following. During your titration of Zinc Chloride lab, you discovered that the burette you used delivered less volume than the recorded volume of Zn2+ solution used in titration. Predict how your results would differ compared to the true values for:
a. Number of moles of zinc.
b. Number of moles of chloride.
c. Empirical formula.

Respuesta :

The no. of moles and mass of zn determines to be in the titration sample of zinc chloride be less than the original value. correct option is (A).

Percentage error = (experimental value / theoretical value) * 100

So experimental value is always less than that of the theoretical value

b. Higher mole of Cl than the true value

A smaller volume would lead to a smaller mol amount of Cl being calculated. Thus higher than the true value volume recording.

c. The ratio of zinc to chloride would decrease.

A higher number of Cl moles would lead to higher whole number when divided by the number of Zn moles. Thus, the ratio would have a larger denominator equals smaller ratio.

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