<u>Answer:</u> The concentration of acetic acid in the vinegar is
<u>Explanation:</u>
To calculate the pH of the solution, we use the equation:
We are given:
pH = 2.95
Putting values in above equation, we get:
The chemical equation for the ionization of acetic acid follows:
The expression of for above equation follows:
We are given:
Putting values in above expression, we get:
So, the concentration of acetic acid =
Hence, the concentration of acetic acid in the vinegar is
Your answer is choice C. That is solid sodium chloride never dissolves to form sodium ions and chloride ions.
Going further to explain, have a look at the question again, we are told that James Proton prepares a saturated solution of sodium chloride in a beaker by adding solid sodium chloride and stirring.
Then when James finishes, crystals of sodium chloride are observed at the bottom of the beaker.
This implies that no more salt was dissolving since the saturation point was reached.
Again suppose he increased the temperature of the reaction, more salts could have dissolved.
1.008x10^16 Joules. Technically a theory and not a law. but E=MC^2!
energy=mass ×speed of light squared.
J=kg×(m/s)^2
Explanation:
if 6 grams of copper is used then the product will be increased as well
as the amount of reactant is proportional to amount of product.
we know,
mass number of copper is 63 and the product we found is 158.
now if we have a mathematical explanation...
for (63X2) gm Cu we get 158 gm product
"' 1 gm 158/126 """
""" 4 gm 158X4/126
=5.01 gm
again for 6gm using
for 126 gm we get 158 gm product
""" 1gm 158/126 gm ""
""" 6 gm " ' 158X6/126 gm
=7.52 gm product
SO we can say by comparative study that the product has increased
I THINK THATS THE ANSWER
thank u
Answer:
C = 9460 Kj
Explanation:
Given data:
Mass of copper = 2kg
Latent heat of vaporization = 4730 Kj/Kg
Energy required to vaporize 2kg copper = ?
Solution:
Equation
Q= mLvap
by putting values,
Q= 2kg × 4730 Kj/Kg
Q = 9460 Kj