Answer: The new volume of cake is 1.31 mL.
Explanation:
Given: = 0.20 mL,
= ?,
Formula used to calculate new volume is as follows.
Substitute the values into above formula as follows.
Thus, we can conclude that the new volume of cake is 1.31 mL.
Answer:
The absorbance of the solution is 0.21168.
Explanation:
Given that,
Wavelength = 500 nm
Molar absorptivity = 252 M⁻¹ cm⁻¹
Number of moles = 0.00140
Volume of solution = 500.0 mL
Length = 3.00 mm
We need to calculate the molar concentration
Using formula of the molar concentration
Where, N = number of moles
V = volume
Put the value into the formula
We need to calculate the absorbance of the solution
Using formula of absorbance
Put the value into the formula
Hence, The absorbance of the solution is 0.21168.
Answer:
-1.78 V
Explanation:
There are several rules required to calculate the cell potential:
That said, notice that the initial reaction with respect to the final reaction is:
Thus, we have a cell of E = -1.78 V.