As temperature increases, pressure increases as well. ... As temperature increases, the molecules move faster, increasing the number of collisions and the force of collisions between the molecules and the walls of the container. This increases the pressure on the walls of the container.
Answer : The millimoles of acetate need to add to this solution will be, 18.2 mmol
Explanation :
For acetic acid,
Moles of of acetic acid = 10 mmol
pH = 5.00
Using Henderson Hesselbach equation :
Now put all the given values in this expression, we get:
Thus, the millimoles of acetate need to add to this solution will be, 18.2 mmol
Answer:
The nichrome wire is dirty.
The solution is contaminated.
Explanation:
If the nichrome wire is dirty, it may contain sodium contaminants which may be responsible for the yellow flame. The nichrome wire is first inserted into the flame without the sample to check for impurities.
The test solution may also have been contaminated. This leads to the appearance of a colour different from the expected colour of the test cation in the solution.
This is an incomplete question, here is a complete question.
What are the concentrations of hydrogen ion and hydroxide ion in household ammonia, an aqueous solution of NH₃ that has a pH of 11.00?
Answer : The concentrations of hydrogen ion and hydroxide ion in household ammonia is, and
Explanation :
As we know that the aqueous solution of ammonia is ammonium hydroxide that is,
The equilibrium reaction will be:
Given:
pH = 11.00
First we have to calculate the hydrogen ion concentration.
pH : It is defined as the negative logarithm of hydrogen ion concentration.
Now we have to calculate the pOH.
Now we have to calculate the hydroxide ion concentration.
Therefore, the concentrations of hydrogen ion and hydroxide ion in household ammonia is, and
Of Uranium-235 remains after 2.8 x 10^9 years, what was the original mass of the sample of Uranium-235? The half-life of Uranium-235 is 7.0 x 10^8 years. Uranium-232 has a half life of 68.8 years.