The mass of is K2CrO7 in the 250 ml of solution is mathematically given as
x=1.25mg of K2CrO7.
Hence, 250 ml of the solution will contain 1.25mg of K2CrO7
<h3>The mass of is K2CrO7</h3>
Question Parameters:
The total of potassium dichromate are there in a 250 mL bottle filled with 5 ppm solution
Generally the mass of k2CrO7 is mathematically given as
x=1.25mg of K2CrO7
Therefore,
250 ml of the solution will contain 1.25mg of K2CrO7
For more information on chemical Reaction
brainly.com/question/11231920
Answer:
Chilling the hydrogen peroxide solution
Explanation:
The MnO₂ is acting as a catalyst.
Chilling the hydrogen peroxide solution reduces the average kinetic energy of the H₂O₂ molecules.
Fewer of them will have enough kinetic energy to overcome the activation energy of the reaction. The rate will decrease.
A is wrong. Using a larger amount of solution does not increase the number of H₂O₂ molecules that can reach the surface of the catalyst per second. There is no effect on the rate.
B is wrong. Increasing the mass of the cube increases its surface area. More molecules of H₂O₂ can reach the surface of the catalyst per second. The rate increases.
D is wrong. Smashing the cube into pieces vastly increases the surface area, so the rate increases
Answer:
J. J. Thomson
Explanation:
This is called the plum pudding model which was proposed by J. J. Thomson.
Answer:
Characteristics that can be observed or measured without changing the chemical nature of the substance. but if you go to quizzlet it could help you too it has flash cards that could help
Explanation:
