1,698 Answered Questions for the topic biochemistry

04/25/20

Calculating Solubility from the Ksp
Calculate the molar solubility of calcium sulfate given Ksp = 2.4 x 10-5
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04/25/20

Calculating Ksp from Solubility

The molar solubility of Pb3(AsO4)2 is 3.34x10-8 mol/L. Calculate Ksp.
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04/22/20

General Chemistry Acids and Base Question

What is the hydroxide ion concentration of a KOH solution that has a pH of 9.20?
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04/21/20

CHEMISTRY DECOMPOSITION

For the decomposition of nitramide in aqueous solution at 25°C, the rate of the reaction is determined by measuring the appearance of N2O. NH2NO2(aq)=N2O(g) + H2O(l)At the beginning of the reaction... more
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Biochemistry Chemistry Chem

04/21/20

What Volume of a 0.53 M HCl solution is required to neutralize 16.5 mL of a .124 M Ca(OH)2 Solution?
What Volume of a 0.53 M HCl solution is required to neutralize 16.5 mL of a .124 M Ca(OH)2 Solution?
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04/20/20

Compare the solubility of silver chromate in each of the following aqueous solutions:
Compare the solubility of silver chromate in each of the following aqueous solutions: Clear All 0.10 M KNO3 0.10 M NH4CH3COO 0.10 M K2CrO4 0.10 M AgCH3COO More soluble than in pure... more
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04/20/20

The maximum amount of silver chloride that will dissolve in a 0.104 M silver nitrate solution is

The maximum amount of silver chloride that will dissolve in a 0.104 M silver nitrate solution is  ____ M.
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04/20/20

Calculate the solubility of CaCO3 (a) in pure water and (b) in a solution in which [(NH4)2CO3] = 0.216 M.
Calculate the solubility of CaCO3 (a) in pure water and (b) in a solution in which [(NH4)2CO3] = 0.216 M. Solubility in pure water =      M Solubility in 0.216 M  (NH4)2CO3 =     M
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04/20/20

Solid sodium carbonate is slowly added to 75.0 mL of a 0.0611 M lead acetate solution. The concentration of carbonate ion required to just initiate precipitation is

Solid sodium carbonate is slowly added to 75.0 mL of a 0.0611 M lead acetate solution. The concentration of carbonate ion required to just initiate precipitation is _____ M.
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04/20/20

The solubility of Fe2S3 is measured and found to be 2.16×10-16 g/L. Use this information to calculate a Ksp value for iron(III) sulfide.

The solubility of Fe2S3 is measured and found to be 2.16×10-16 g/L. Use this information to calculate a Ksp value for iron(III) sulfide.Ksp = 
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04/16/20

General Chemistry Lab Question 4.16.20
In lab you are asked to perform an experiment that requires 100.00 mL of a 0.350 M potassium chloride solution. All you have in the lab though is a 0.750 M potassium chloride solution. Explain (in... more
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04/16/20

Chemistry question
What are the functional groups present?How many multiple bonds present?
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04/15/20

Chem math question 4.5.20
During an experiment, a student reacted 1.785 g of trisodium phosphate with 20.00 mL of 0.678 M copper (II) chloride to produce solid copper (II) phosphate and aqueous sodium chloride. Determine... more
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04/15/20

General Chemistry Question
Would acetaminophen be highly soluble in water? Or low soluble in water? Does it have something to do with the hydrogen bonding?
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04/15/20

Chemistry Question 4.15.20
A 1.753 g sample of an unknown nonelectrolyte is dissolved in 25.00mL of cyclohexane. The resulting solution freezes at 2.46 oC, whereas the freezing point of pure cyclohexane is 6.47 o Cyclohexane... more
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04/14/20

Nanopatterned physical  surface  coating strategy on Ti-based
Plan a nanopatterned physical  surface  coating strategy on Ti-based alloy implant to have the coating thickness is below than 1 micrometer.ii) Explain the working principle of surface modification... more
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Biochemistry

04/13/20

Assume that glyceraldehyde-3-phosphate dehydrogenase is completely inhibited in red blood cells. Which intermediates in glycolysis would you expect to accumulate most? Please explain.
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Biochemistry

04/11/20

For reaction A --> B (delta G°′ = −10 kJ/mole), do you think this reaction is spontaneous under physiological (or cellular) conditions? Why or why not?
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Biochemistry

04/11/20

The cyclic form of sugars
a. has one more chiral center (the anomeric carbon) than the open-chain form. b. loses a chiral center compared to the open-chain form. c. is not usually found in nature. d.... more
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04/11/20

Chemistry question

According to measurements, most people's exposure to naturally-occurring background radiation comes from what source? smoke detectors X-rays radon gas nuclear power plants medical waste
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04/11/20

Chemistry question
What are chylomicrons? enzymes that remove amino acids from the N-terminal end of peptides and proteins possessing a free amino group hormones secreted in the small intestine that stimulate the... more
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04/11/20

Chemistry question
Some fats and oils undergo oxidation and hydrolysis reactions when they come into contact with moist air at room temperature and acquire a characteristic disagreeable odor. This property of fats... more
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04/11/20

Chemistry question
The following are carbohydrates except _________. erythrose triglycerides xylulose ribose mannose
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04/11/20

Chemistry question
Why are radioactive isotopes used for various applications? Select all correct responses. We can detect the radioactivity. We can use the energy given off. They are all artificially produced. They... more
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04/11/20

Chemistry question
Which of the following is likely NOT a source of exposure to radiation? medical sources one's own body consumer products radon gas the water we drink
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