Question

PLEASE HELP 100 POINTS FOR THIS

A student placed a piece of nickel in silver nitrate solution. Silver metal precipitated and

aqueous nickel (II) nitrate was produced. The student collected the following data:


Mass of beaker 102. 05 g

Mass of beaker with silver 103. 13 g

Mass of nickel before 5. 00 g

Mass of nickel after 4. 69 g

__ Ni + __ AgNO 3 à __ Ag + __ Ni(NO 3 ) 2


Determine the percent yield of silver

Answer 1

To calculate the percent yield of silver, we need to compare the actual yield to the theoretical yield. We can use the moles of nickel used and the stoichiometry of the balanced equation to determine the moles of silver produced. The percent yield can then be calculated using the formula: (actual yield / theoretical yield) × 100.

Step-by-step explanation:

To calculate the percent yield of silver, we need to compare the actual yield to the theoretical yield. The equation for the reaction is:

Ni + 2AgNO3 → 2Ag + Ni(NO3)2

First, we can calculate the moles of nickel used:

Moles of nickel = mass of nickel before - mass of nickel after / molar mass of nickel

Next, we can use the stoichiometry of the balanced equation to determine the moles of silver produced. Since the ratio of nickel to silver in the equation is 1:2, the moles of nickel used will be equal to twice the moles of silver produced.

Finally, we can calculate the theoretical yield of silver:

Theoretical yield of silver = moles of silver produced × molar mass of silver

The percent yield can then be calculated using the formula:

Percent yield = (actual yield / theoretical yield) × 100