Find ph of the solution be after the addition of compound
You Have 500 mL of a buffer solution containing .2 M CH3COOH and .3 M CH3COONa. What will the pH of this solution be after the addition of 20 mL of 1.00 M NaOH solution? (Ka=1.8x10^-5)
Expected delivery within 24 Hours
Water flows through a pipe AB 1.2 m diameter at 3 m/s and then passes through a pipe BC 1.5 mdiameter. At C, the pipe branches. Branch CD is 0.8 m in diameter and carries one third of the flow in AB.
The dry sample of gas had a mass of 4.20 g. At 21 degrees celsius the vapor pressure of water is 18.65 torr. What was the molecular weight of the gas?
If the barometric pressure is 784 torr and the experiment is carried out at 25 oC, what is the pressure of the gas collected?
A very long cylinder of linear dielectric material is placed in an otherwise uniform electric field Eo. Find the resulting field within the cylinder. (the radius is a , the susceptibility is Xe , and the axis is perpendicular to Eo.
You add 7.3 iron to 25.10 of water and observe that the volume of iron and water together is 26.03. Calculate the density of iron.
During an experiment, a metal and an excess of fluorine gas were placed into a combustion chamber at a temperature of 1800°C. The temperature in the sealed chamber continued to rise to 2100°C. After the reaction stopped, a brittle white sub
If a raindrop weighs 63 mg on average and 5.1 105 raindrops fall on a lawn every minute, what mass (in kg) of rain falls on the lawn in 1.4 h?
What mass of solid sodium formate (of MW 68.01) must be added to 140 mL of 0.57 mol/L formic acid (HCOOH) to make a buffer solu- tion having a pH of 4.16? Ka = 0.00018 for HCOOH.
1940787
Questions Asked
3,689
Active Tutors
1448050
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Why does PCR require two primers (ie why could it not be accomplished with only one? Why is it important to include a positive control in a PCR experiment?
Question: When the concentration of flavin mononucleotide increases: Need Assignment Help?
An increase in cellular metabolism that inhibits expression of the genes for that metabolism is a process known as:
Question: What would happen in the environment if a toxin eliminated large numbers of denitrifying bacteria in the soil?
Use the diagram of the nitrogen cycle to answer the question. Diagram of a nitrogen cycle. (Imagery supplied by olando o/iStock via Getty)
Question: Which adaptation do sea cucumbers have that allow them to live in ocean trenches?
Question: An organism that carries DNA from other species is termed Group of answer choices