Symone

For the DNA sequence of TACTTCTTCAAGACT, what information is contained in the genetic code for the first and last codon? Please be specific. I appreciate any help I can get.. Thank you!

Acetylsalicyclic Acid, HC9H704, is the active component is aspirin. Two extra strength aspirin tablets, each containing 500 mg of acetylsalicylic acid, are dissolved in 325 ml of water. What is the pH of the solution? (Assume Ka=3.3x10^-4)

A 1.00 L volume of buffer is made with concentrations of 0.350 M NaCHO2 and .550 M HCHO2. a) What is the initial pH of the buffer? b) What is the pH after the addition of .0050 mol HCL? c) What is the pH after the addition of .0050 mols NaOH?

Given .300 L of a buffer solution that is .250 M HC2H3O2 and .50 M NaC2H302, what is the new pH if .0060 mol HCL is added? what about .0060 mol NaOH?

Explain what is required to create a buffer that needs to protect the pH between 8.1 and 8.5. EXPLAIN IN DETAIL

i got 3.2 for my pOH and 6.31x10^-4 for my [OH^-]. after this i am stuck and not sure where to go.

so where does the Ka=3.3x10^-4 come in? and im lost with what you put in parethesis in ur explanation.

i see that the equation is pH=pKa+log[base]/[acid]. but i do not know how to get pKa

does (HA)=58.695. my math was 1g/180.6 * 1/.325L

Kb= .0876???

x=2.37x10^-3 pH=2.63 is this correct?

181

welp what is is