Answer:
I don't know what to say . just for points
Answer:
There is no reaction available for us to see.
Explanation:
However, the law of conservation of mass states that the number of atoms in the reactants side must equal the amount of atoms on the product side in a chemical equation. This is because mass cannot be created or destroyed. As a result, we must balance chemical equations to have the same number of atoms of each element on both the reactant and products sides. Additionally, with chemical reactions, all elements within the reaction must remain in the reaction. There cannot be new elements formed or lost in chemical reactions. Hope this helped!
Answer:
a) 15.2 kJ/g
b) 1367 kJ/mol
Explanation:
<u>Given:</u>
Mass of lactic acid = 0.5865 g
Heat capacity C of calorimeter = 4.812 kJ/C
Initial temperature, T1 = 23.10 C
Final temperature, T2 = 24.95 C
<u>To determine:</u>
Heat of combustion/gram and heat/mole lactic acid
<u>Calculation:</u>
Molar mass of lactic acid = 90.08 g/mol
The heat of combustion is given as:
where C = heat capacity of calorimeter
T1 and T2 are the initial and final temperatures
a) heat of combustion per gram
b) heat of combustion per mole