The empirical formula is obtained by calculating the mole ratios of the atoms in the elements.
The number of moles =mass/ R.A.M
For hydrogen, no. of moles=8/1=8
For oxygen, no. Of moles=64/16=4
The tabular solution is attached.
Answer:
Saponification
Explanation:
When treated with a base such as NaOH, the ester is transformed back to alcohol and the sodium salt of carboxylic acid. Saponification is the name <u>given</u> to the reaction since it is utilized in the production of soap.
Physical change I’m pretty sure
<u>Answer:</u> The mass of potassium benzoate is 
<u>Explanation:</u>
To calculate the mass of solute, we use the equation used to calculate the molarity of solution:

We are given:
Molarity of solution = 0.120 M
Molar mass of potassium benzoate trihydrate = 214.26 g/mol
Volume of solution = 1.5 L
Putting values in above equation, we get:

Hence, the mass of potassium benzoate is 