1,708 Answered Questions for the topic biochemistry

03/17/21

Chemistry: Stoichometry

Construct a BCA table based on the reaction below if 0.210 moles of C3H8 are combined with0.900 moles of O2.C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(g)Calculate the mass of CO2 gas that should... more
Follows • 2
Expert Answers •1
Biochemistry

03/16/21

Why fructose metabolised more rapidly than glucose?
Follows • 0
Expert Answers •1
Biochemistry Science Biology Chemistry

03/16/21

Enthalpy diagram
Frost forms on the windshield of a car on a cold winter morning. This frost disappears with no evidence that water forms. Draw an enthalpy diagram to illustrate the change.
Follows • 2
Expert Answers •1
Biochemistry Math Science Chemistry

03/13/21

SOS! Please help with rate law problem!
Step 1 : A + B → C + E (slow) Step 2 : B + E → D (fast)Predict the rate law if step 1 is slow.
Follows • 2
Expert Answers •1

03/12/21

Equilibrium concentrations

The equilibrium constant, Kc, for the following reaction is 55.6 at 698 K.H2 (g) + I2 (g)  2 HI (g)Calculate the equilibrium concentrations of reactants and product when 0.333 moles... more
Follows • 2
Expert Answers •2
Biochemistry

03/12/21

Biochemistry Homework

Which of the following is responsible for nucleophilic attack on the substrate during the reaction catalyzed by Trypsin? The positively charged side chain of Histidine. The negatively charged... more
Follows • 1
Expert Answers •1
Biochemistry Science Biology Physics

03/12/21

4. Plants heterozygous for a characteristic that determines petal colour were crossed (AB × AB)
The A allele represents a red phenotype, and the B allele represents a white phenotype. Work out the genotypic numbers if:a. This is an F1 cross. The results will be one AA to two AB to one BB. b.... more
Follows • 1
Expert Answers •1

03/10/21

Equalibrium Concentrations

The equilibrium constant, Kc, for the following reaction is 1.80×10-4 at 298 K.NH4HS(s) NH3(g) + H2S(g)Calculate the equilibrium concentration of H2S when 0.390 moles of NH4HS(s) are introduced... more
Follows • 1
Expert Answers •1

03/10/21

Equilibrium calculations
The equilibrium constant, Kc, for the following reaction is 83.3 at 500 K.PCl3(g) + Cl2(g) PCl5(g)Calculate the equilibrium concentrations of reactant and products when 0.282 moles... more
Follows • 2
Expert Answers •1

03/10/21

Calculating K from Rearranged equations
The equilibrium constant, Kc, for the following reaction is 1.95×10-2 at 731 K.2HI(g) H2(g) + I2(g)Calculate Kc at this temperature for the following reaction:HI(g) 1/2H2(g) + 1/2I2(g)Kc = 
Follows • 2
Expert Answers •1

03/10/21

Calculate K for Rearranged equations
The equilibrium constant, Kc, for the following reaction is 11.5 at 345 K.2CH2Cl2(g) CH4(g) + CCl4(g)Calculate Kc at this temperature for the following reaction:1/2CH4(g) + 1/2CCl4(g) CH2Cl2(g)Kc = 
Follows • 2
Expert Answers •1

03/10/21

Manipulating K Expressions
Consider the reaction:C(s) + O2(g)CO2(g)Write the equilibrium constant for this reaction in terms of the equilibrium constants, Ka and Kb, for reactions a and b below: a.) C(s) + 1/2... more
Follows • 2
Expert Answers •1

03/08/21

How much water do we lose per day?
i need help with this question
Follows • 2
Expert Answers •1
Biochemistry Biology Microbiology

03/08/21

pGLO transformation
Hi!I did a lab about pGLO transformation, and in the instructions, it is said that the heat shock must last for exactly 50 seconds. But why is time so important here?
Follows • 1
Expert Answers •1

03/05/21

Phosphate Buffer Preparation :Describe how would you prepare a phosphate buffer solution (100.0 mL, 0.100 M, pH 7.00)?
H2PO4− (aq) + H2O (l) ⇌ HPO42− (aq) + H3O+ (aq) pKa2 = 7.20Question: Describe how would you prepare a phosphate buffer solution (100.0 mL, 0.100 M, pH 7.00)? Available Stock Solution: Concentrated... more
Follows • 1
Expert Answers •1

03/04/21

Calculate K from Equilibrium

The equilibrium constant, Kc, for the following reaction is 10.5 at 350K.2CH2Cl2(g) CH4(g) + CCl4(g)If an equilibrium mixture of the three gases in a 19.4 L container at 350K contains 0.372 mol... more
Follows • 2
Expert Answers •1

03/04/21

Calculate K from Equilibrium

The equilibrium constant, Kc , for the following reaction is 7.00×10-5 at 673 K.NH4I(s) NH3(g) + HI(g)If an equilibrium mixture of the three compounds in a 6.70 L container at 673 K... more
Follows • 2
Expert Answers •1
Biochemistry Chemistry Buffer Solution

03/04/21

from a 100mL prepared buffer, only 20mL was used for the addition of a strong acid or base. will the taken 20mL still represents the same moles as the originally prepared buffer solution?
Will the moles of the obtained 20mL buffer from the originally prepared 100mL buffered solution have the same moles or will they be different? What I am sure of is that the concentration of the 2... more
Follows • 1
Expert Answers •1

03/03/21

What kinetic energy, 𝐸k , must the electrons have in order to resolve a protein molecule
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy ,𝐸k, must the electrons have in order to resolve a... more
Follows • 1
Expert Answers •1

03/03/21

Maximum mass of an object
Assuming that the smallest measurable wavelength in an experiment is 0.430 fm, what is the maximum mass of an object traveling at 913 m⋅s−1 for which the de Broglie wavelength is observable?
Follows • 1
Expert Answers •1

03/01/21

A sample of ethanol, C2H6O, has a mass of 21.50 g. Calculate the number of ethanol molecules in the sample.
Please Help I really indeed need help with this question!!! Like I got the number of moles of the ethanol being 0.46 but then I get confused from there.
Follows • 1
Expert Answers •1
Biochemistry

03/01/21

Genetic code exercise

an mRNA segment encodes the peptide Met- Thr - Phe - Ile - Trp. Proflavin causes the removal of a single base from the gene encoding this mRNA. The new peptide translated from the modified mRNA is... more
Follows • 1
Expert Answers •1
Biochemistry

02/28/21

Mechanism of coenzyme

mechanism of action of FMN
Follows • 1
Expert Answers •1
Biochemistry

02/28/21

Amino acids converted

is serine converted to oxalacetates?If so how does it happen,if not why not
Follows • 1
Expert Answers •1
Biochemistry

02/28/21

Amino acids degradation

show the path of serine degradation to CO2 H2O and urea
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.