2.1 Estimate the solubility of calcium carbonate at 25°C in the presence of 0.02MCaCl2(aq).2.2 Will BaSO4 precipitate from a solution containing 2.5 x10 M Ba*2, barium ion, ifenough soluble salt, Na2SO4, is added to make the solution 2.5 x104 M in SO42?

2.1 Solution To estimate the solubility of calcium carbonate (CaCO3) in the presence of CaCl2…

Answered: 2.1 Estimate the solubility of calcium…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The reaction quotient is Q=1.6×10-26 Part B What pH is needed to produce this value of Q if the concentration and pressure values are [Br2]=2.50×10−4M , [Br−]=11.65M, [SO42−]=9.50M, and PSO2=3.50×10−5atm ? Express your answer numerically to two decimal places.
Number 3
1.0 0.9 Z 0.8 15. A pharmaceutical company studied the binding of three different compounds, X, Y, and Z, to a particular protein of interest. For each compound, the fractional saturation (v) was determined as a function of concentration. The results are shown in the figure. Which of the three compounds has the strongest affinity for the protein? Explain. 0.7 X 0.6 > 0.5 0.4 0.3 0.2 0.1 0.0 Y 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 L(μM)
10. Glycine has 2 ionizable functional groups. Write the equilibrium equations for its three ionizations, and assign the proper pKa (2.34, 9.60) for each ionization. Draw the structure of Glycine in three ionization states. Indicate the net charge on the Glycine molecule in each ionization state. Structure Net charge a. COO- H3N-C-H H Please calculate the isoelectric point of Glycine. b. Draw the structures of the predominant ionization state of Glycine at pH 1 and 14.
None
You are presented with the following prescription: Rx Drug Y 175 mg Witepsol H15 q.s. Supply 6 suppositories (using 3 g nominal moulds) When using Witepsol H15, moulds will hold 1.06 times their nominal weight. The displacement value of Drug Y in Witepsol H15 is 1.1. Calculate the mass of Witepsol H15 required to prepare this product. Give your answer to two decimal places.
A one-to-one protein (P)-ligand (L) complexation (P + L PL) has a dissociation equilibrium constant (Kd) value of 100 nM at 25°C, and the Kd remains the same at 37°C. 1) What is AS of binding at 25°C? Assume ACp of the binding is 0 over the temperature range. AS = 1.34E2 kJ/(mol*K) (note the unit!!) (sig. fig =3) 2) What is the concentration of the PL complex formed at equilibrium when you mix 0.20 uM (microM) of Protein and 1.0 uM of Ligand together at 37°C? PL at equilibrium = 8.1E-1 uM (note the unit!!) (sig. fig =2)
Only 15-14
Given the initial rate data for the reaction A + B → C, determine the rate expression for the reaction. [A], M [B], M A[C]/At (initial) M/s 0.0418 0.122 2.73 x 10-4 0.0836 0.122 10.9 × 10 4 0.0418 0.488 2.73 x 104 O A[C] At ○ A[C] ΔΙ = 0.439 Ms[A][B]² = 1.27 M²s¹ [A][B] ● A[C] = 6.53 × 10³ s¹ [A] At O A[C] = 0.156 M's¹[A]² At ○ A[C] At = 5.35 x 102 M2s[A][B]
Paper electrophoresis of Asn, Ala, Asp, Lys and Ser mixtures at pH = 7 shows the fastest movement towards the anode The fully saponified 10g oil sample consumed 1.87g KOH, and the iodine value of the oil was 28.3. So how many unsaturated double bonds are there in each oil molecule on average? (lodine is known to have an atomic weight of 127) Given that 100g cellulose sample is completely hydrolyzed to obtain 78g glucose, then the percentage of cellulose in the sample is _% Given that the Km of catalase is 20mmol/L and the substrate concentration is 80mmol/L, then the percentage of catalase bound to the substrate is %
Glutamic acid (1one of the 20 amino acids) has a side- chain carboxyl group (COOH, pKa = 4.3) as shown in Figures 4.7 and 4.8 a. Write the chemical equation for the dissociation of the side chain COOH. Label the weak acid and the conjugate base. b. The Henderson-Hasselbalch Equation (shown below) can be used to determine the ionization status of a weak acid: pH = pKa + log [base] Use the Henderson Hasselbalch equation to determine whether the glutamic acid side chain [acid] • carboxyl group is protonated or deprotonated at physiological pH.
N-(2-hydroxyethyl)piperazine-N'-(2-ethanesulfonic acid) buffer at pH 7 with 400 mM NaCl. A A purified protein is in a Hepes dialysis membrane tube holds a 5.0 mL sample of the protein solution. The sample tube floats in a beaker containing 0.50 L of the same Hepes buffer, but with 0 mM NaCl, for dialysis. Small molecules and ions (such as Na*, CI", and Hepes) can to diffuse across the dialysis membrane, but the protein cannot. Assume there are no sample volume changes during the dialysis. Calculate the final concentration of NaCl in the protein sample once the dialysis has come to equilibrium. Calculate the final NaCl concentration in the 5.0 mL protein sample after dialysis in 300 mL of the same Hepes buffer, with 0 mM NaCl, twice in succession. [NaCl] after a single dialysis: [NaCl] after a double dialysis: mM mM

SEE MORE QUESTIONS

Recommended textbooks for you

Biochemistry

ISBN:

9781319114671

Author:

Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781319114671

Author:

Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781305961135

Author:

Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:

Cengage Learning

Biochemistry

ISBN:

9781305577206

Author:

Reginald H. Garrett, Charles M. Grisham

Publisher:

Cengage Learning

Fundamentals of General, Organic, and Biological …

Biochemistry

ISBN:

9780134015187

Author:

John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson

Publisher:

PEARSON

SEE MORE TEXTBOOKS

2.1 Estimate the solubility of calcium carbonate at 25°C in the presence of 0.02M CaCl2(aq). 2.2 Will BaSO4 precipitate from a solution containing 2.5 x10 M Ba*2, barium ion, if enough soluble salt, Na2SO4, is added to make the solution 2.5 x104 M in SO42?