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In some jurisdictions, forensic chemists will testify based on data obtained only from presumptive tests. What are your views on this practice?
State a sentence discussing the external feel of the molecule specifically molecular polarity. Discuss which regions feel diverse charges that are the dipole or whether symmetry cancels out polarity but would leave the substance mimicking a negati..
when 0.625 g of ca metal is added to 200.0 ml of 0.500 m hclaq a temperature increase of 102c is observed. assume the
We are titrating 27.00 mL of 0.2501 M hypobromous acid (HOBr, Ka = 2.000x10?9) with 0.5200 M LiOH. What is the pH at the equivalence point
What are the major species present in the aqueous solutions of each of the following.
If the following elements were involved in redox reactions, which noble-gas configuration would they most likely attain?LI,Na,O,P,Sc,As,Sr--- He,Ne,Ar,Kr matching
Exactly 37.2mL of hydrogen is collected over water at 29C and 745.0 torr. The vapor of water at 29C is 30.0 torr. Explain what is the volume of dry hydrogen collected at S.T.P
Question- The standard reduction potential for a substance indicates how readily that substance gains electrons relative to other substances at standard conditions.
Which of these would NOT be expected to form in even small amounts in the free-radical chlorination of methane.
Acetic acid has a Ka of 1.8 times 10^{-5}. Three acetic acid/acetate buffer solutions, A, B, and C, were made using varying concentrations: 1. [acetic~acid] ten times greater than \rm [acetate]
How many grams of potassium acetate must be added to 2.5 L of 0.250 M acetic acid to obtain a buffer at pH = 4.26
What volume of hydrogen gas is produced when 83.8 g of iron reacts completely according to the following reaction at 25oC and 1 atm.
Once you make a 100ml of 0.2M solution with 2.422 g of substance. If you take 10 ml of that solution you just made and add 90 ml of water and mix it. Then take 5 ml of the mixture and bring it to 25ml, what will be the concentration ofthe final so..
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