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That's all the info I have. I'm confused and need help. 4) If the pK, of...
54) Ir the pk of HICHO, is 3.62 and the pH of an HICHO/NACHO, solution is 3.89, is the [HCHO, Ior> the NACHO, 17 R
I need help with #3, 4. Also, I am confused with #5
because both pH are the same.
Ka 1-7X10 4 3. In a titration between HCHO, and KOH, would the pH at the equivalence point be acidic, basic, or neutral? Briefly explain your answer. HCHO+KOH b) Which of the following acid-base indicators would be the best one to use in the titration? i) methyl orange, Ka = 104 ii) bromthymol blue, Ka = 10-7 iii) thymolphthalein, Ka= 10-10 4....
that's all I have for that questions, reason I'm so
confused
1. The figure shown here illustrates the importance of ste homology domains (SH) in cell signaling pathways. Using this figure, comment on the importance of the SH2 and SH3 domains in downstream signaling. In addition, define the functional importance of the Sos protein. Finally, please comment on potential mutations in each part of the schematic may lead to oncogenic cellular changes. plasma membrane TK Grb2 GTP P SH2 SHO...
I'm confused and want to confirm what I have. thank you
This is all we are given!
ahile? 8. Provide reaction mechanisms for the following transformations: (5 points each) O cat. Thiamine HCI Ph CH3 Ph Ph Нс heat, NaOH Он OH hint: consider the reversibility of the reaction CH3 он Н CEN H2O, E1OH .CH3
I'm
confused, any help would be great
Question 13 of 20 > Consider a titration of 50.0mL sample of 0.500 M HCl (a strong acid, which contains 0.0250 moles H:07) with 0.400 M NaOH (a strong base). Determine the pH of the solution after 15.0 mL of NaOH (0.00600 moles of OH) is added.
i
need help with this one that's all i have
8:32 1 ..1 LTE D D 24:00 Exit Enter answer D5. Using the graph below, as well as the fact that the resistance in the circuit was 100 ohms, what is the capacitance of the capacitor? 12 16 20 24 23 22 Enter answer Submit
Hi, I need help with this question, I'm struggling to find the
pH and the two equivalence points. thank you!
A 10.00mL sample of 0.1000M an acid (pK a1 = 2.89; PK 22 = 5.51) was titated with 0.1526M NaOH. Sketch the graph of pH versus V NaOH for the titration of this acid through the addition of 25.00mL of NaOH. (3 points) Indicate the numerical pH values for the initial (i.e. before addition of NaOH), half-equivalence, and equivalence points;...
I need help understanding this question. I am confused on the
concept here. I know its under equipotential surfaces but that's
all.
4. Two equal positive charges are placed x m apart. The equipotential lines are at 100 V interval. The potential for line c is A. □100V B. D100 V C. 0200 V D. □200V E. zero +20V +100V a b +0
I need help with questions 1-4 please. have not yet
gone over pH in lecture yet, so I'm a little lost.
Thanks
1. Why is not the pH at the equivalence point always equal to 7 in a neutralization titration? When would it be 7? (Hint: consider the strengths of the acids and bases) 2. What is the pH of the solution obtained by mixing 50.00 mL of 0.250M HCl and 50.00 mL of 0.500M NaOH? 3. What is the...
Please help me understand this!! I'm so confused, are these
anwers correct or not? I have no idea where these answers are
coming from I can't figure out how they got them. Are these
correct???? It dosent look like they were marked wrong. Sorry this
is old study material from a previous class, I'm trying to piece it
togther but completeyl lost. Please please please show me how to
solve these transfer functions with very clear steps
the block diagram...