Calculate the absolute error in a mole ratio.

Determine mole ratio of Zinc iodide.

error in mass (g) was +- 0.005

Mass of reacted Zn = 0.16

Mass of iodine = 1.134

experiment value= 1:1.95

calculate absolute error in 1.95?

To calculate the absolute error in a mole ratio, you need to first determine the absolute errors in the values used to calculate the mole ratio. In this case, the values given are:

Mass of reacted Zn = 0.16 g
Mass of iodine = 1.134 g

The error in mass was given as ±0.005 g.

To determine the absolute error in each value, you need to multiply the error in mass by the number of moles of that substance. To calculate the number of moles, you need to use the molar mass of each substance. The molar masses are:

Molar mass of Zn = 65.38 g/mol
Molar mass of iodine (I2) = 253.80 g/mol

The number of moles of Zn is calculated by dividing the mass of Zn by its molar mass:

Number of moles of Zn = (0.16 g) / (65.38 g/mol) = 0.0024 mol

The number of moles of iodine is calculated by dividing the mass of iodine by its molar mass:

Number of moles of iodine = (1.134 g) / (253.80 g/mol) = 0.0045 mol

Now, calculate the absolute errors for each substance:

Absolute error in Zn = 0.005 g/mol * 0.0024 mol = 0.000012 g
Absolute error in iodine = 0.005 g/mol * 0.0045 mol = 0.000023 g

Finally, to calculate the absolute error in the mole ratio of 1.95, you need to sum up the absolute errors of the individual substances:

Absolute error in mole ratio = Absolute error in Zn + Absolute error in iodine
= 0.000012 g + 0.000023 g
= 0.000035 g

Therefore, the absolute error in the mole ratio of 1.95 is 0.000035 g.

To calculate the absolute error in a mole ratio, we first need to determine the mole ratio.

The mole ratio represents the ratio of moles of one substance to moles of another substance in a balanced chemical equation. In this case, we want to determine the mole ratio of Zinc iodide (ZnI2).

From the balanced chemical equation, we can see that the mole ratio of ZnI2 is 1:2. This means that for every 1 mole of ZnI2, there are 2 moles of Zn and 2 moles of I.

Now, let's calculate the absolute error in 1.95, which is the experimental value for the mole ratio.

Absolute error can be calculated by taking the difference between the measured value and the accepted value (or known value) and then taking the absolute value of that difference.

Given that the experimental mole ratio is 1.95 and the accepted/known mole ratio is 1:2, we can calculate the absolute error as follows:

Absolute error = |1.95 - (1/2)|

= |1.95 - 0.5|

= |1.45|

= 1.45

Therefore, the absolute error in the mole ratio of 1.95 is 1.45.