a. 0.15%

b. 0.87%

c. 13%

d. 15%

The percentage error is 1.33 %.

Explanation:

To calculate the percentage error, we use the equation:

We are given:

Experimental density of vanadium =

Accepted density of vanadium =

Putting values in above equation, we get:

Hence, the percentage error is 13 %.

13%

Explanation:

The theoretical value for the density of vanadium is 6.11 g/cm3 while the experimental value determined in the laboratory is 6.9 g/cm3. To calculate the percentage error, the following formula is used

= 13%

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