1,716 Answered Questions for the topic biochemistry

07/23/20

18. NEED HELP FAST

At  25 ∘C , the equilibrium partial pressures for the reaction3A(g)+4B(g)↽−−⇀2C(g)+2D(g)were found to be  𝑃A=5.87  atm,  𝑃B=4.85  atm,  𝑃C=4.79  atm, and  𝑃D=4.93  atm.What is the standard change... more
Follows • 1
Expert Answers •1

07/23/20

17. NEED HELP FAST

The decomposition of a generic diatomic element in its standard state is represented by the equation12X2(g)⟶X(g)Assume that the standard molar Gibbs energy of formation of X(g) is  5.77... more
Follows • 1
Expert Answers •1

07/20/20

8. NEED HELP FAST

For a particular redox reaction,  BrO−  is oxidized to  BrO−3  and  Cu2+  is reduced to  Cu+ . Complete and balance the equation for this reaction in basic solution. Phases are optional.balanced... more
Follows • 1
Expert Answers •2

07/20/20

7. NEED HELP FAST

Complete and balance the reaction in acidic solution.equation:ZnS + NO_{3}^{-} -> Zn^{2+} + S + NO Which element is oxidized?Which element is reduced?Which species is the oxidizing agent?Which... more
Follows • 1
Expert Answers •1

07/20/20

4. NEED HELP FAST

For the oxidation–reduction reaction equation2Na+S⟶Na2S indicate how many electrons are transferred in the formation of one formula unit of product.electrons:
Follows • 2
Expert Answers •1

07/20/20

10. NEED HELP FAST

A  20.574  g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with  71.827  g of water. A  10.093  g aliquot of this solution is then titrated... more
Follows • 1
Expert Answers •1

07/20/20

15. NEED HELP FAST

Given the informationA+B⟶2D Δ𝐻∘ =-677.5kJ Δ𝑆∘= 370.0 J/K C⟶D Δ𝐻∘ = 509.0kJ Δ𝑆∘=-243.0 J/K calculate  Δ𝐺∘  at 298 K for the reactionA+B⟶2C Δ𝐺∘=
Follows • 2
Expert Answers •2
Biochemistry

07/19/20

Which of the following factor does not affect an enzyme's activity and why?
a. colorb. temperaturec. concentrationd. pH
Follows • 1
Expert Answers •1

07/16/20

9. NEED HELP FAST

An aqueous solution at  25 ∘C  is  7.53%  LiOH by mass and has a density of  1.091  g/mL.What is the pH?pH=
Follows • 1
Expert Answers •1

07/16/20

13. NEED HELP FAST

Calculate the pH of a  0.123 M  solution of  NaNO2.  The ionization constant,  𝐾a,  for the acid,  HNO2,  is  4.60×10−4. pH=
Follows • 2
Expert Answers •1

07/16/20

19. NEED HELP FAST

A volume of  500.0 mL  of  0.100 M   NaOH  is added to  535 mL  of  0.200 M  weak acid  (𝐾a=2.96×10−5).  What is the  pH  of the resulting buffer?HA(aq)+OH−(aq)⟶H2O(l)+A−(aq) pH=
Follows • 2
Expert Answers •1

07/16/20

20. NEED HELP FAST

The  p𝐾a  of hypochlorous acid is  7.530 . A  52.0  mL solution of  0.145  M sodium hypochlorite ( NaOCl ) is titrated with  0.321  M  HCl .Calculate the pH of the solution after the addition... more
Follows • 2
Expert Answers •1
Biochemistry

07/16/20

My question is based on Biochemistry
20) Binding of oxygen to Fe2+ of heme group leads to  a Flattening of Heme b Increased binding of DPG c Formation of salt bridges d All options are true 19) Smokers are known to have an... more
Follows • 2
Expert Answers •1

07/15/20

5. NEED HELP FAST!!!

The reactionC4H8(g)⟶2C2H4(g)has an activation energy of  262 kJ/mol.  At  600.0 K,  the rate constant,  𝑘,  is  6.1×10−8 s−1.  What is the value of the rate constant at  790.0 K?
Follows • 1
Expert Answers •1

07/14/20

NEED HELP FAST!!!!

The reactionC4H8(g)⟶2C2H4(g) has an activation energy of  262 kJ/mol.  At  600.0 K,  the rate constant,  𝑘,  is  6.1×10−8 s−1.  What is the value of the rate constant at  790.0 K?
Follows • 2
Expert Answers •1

07/13/20

NEED HELP FAST!!!!

The reaction C4H8(g)⟶2C2H4(g)has an activation energy of 262 kJ/mol. At 600.0 K, the rate constant, 𝑘, is 6.1×10−8 s−1. What is the value of the rate constant at 790.0 K?
Follows • 2
Expert Answers •2

07/13/20

NEED HELP FAST!!!
For A⟶products, time and concentration data were collected and plotted as shown. [𝐀] (𝐌)𝐭 (𝐬) 0.600 00.0 0.484 30.0 0.405 60.0 0.349 90.0 Determine the reaction order, the rate... more
Follows • 1
Expert Answers •1

07/13/20

NEED HELP FAST!!!!

Consider the given reaction.A(aq)+B(s)↽−−⇀C(aq)𝐾=9.40Suppose  13.7 mol A  reacts with excess  B  in  5.90 L  of solution. Calculate the concentration of  C  at equilibrium.
Follows • 2
Expert Answers •2

07/13/20

NEED HELP FAST!!!!

For  A⟶products , time and concentration data were collected and plotted as shown.[𝐀] (𝐌)  𝐭 (𝐬) 0.600  00.0 0.484  30.0 0.405  60.0 0.349  90.0 A plot of the concentration of A versus time is... more
Follows • 1
Expert Answers •1

07/13/20

NEED HELP FAST!!!

The reactionC4H8(g)⟶2C2H4(g) has an activation energy of  262 kJ/mol.  At  600.0 K,  the rate constant,  𝑘,  is  6.1×10−8 s−1.  What is the value of the rate constant at  790.0 K?
Follows • 2
Expert Answers •1

07/13/20

NEED HELP FAST!!!

Consider the given reaction.A(aq)+B(s)↽−−⇀C(aq)𝐾=9.40 Suppose  13.7 mol A  reacts with excess  B  in  5.90 L  of solution. Calculate the concentration of  C  at equilibrium.
Follows • 1
Expert Answers •1

07/13/20

NEED HELP FAST!!

At a certain temperature,  0.760 mol SO3  is placed in a  4.50 L  container.2SO3(g)↽−−⇀2SO2(g)+O2(g) At equilibrium,  0.160 mol O2  is present. Calculate  𝐾c.
Follows • 1
Expert Answers •1

07/13/20

NEED HELP FAST!!!

The rate constant for this first‑order reaction is  0.0660 s−1  at  400 ∘C. A⟶products After how many seconds will  17.4%  of the reactant remain?
Follows • 1
Expert Answers •1
Biochemistry

06/30/20

Which of the following protein structure has a lowest energy
amyloid  native (folded) structure  unfolded structure aggregates
Follows • 1
Expert Answers •1
Biochemistry

06/30/20

Which of the following are related the entropy changes in protein folding (U --> N)

Follows • 1
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.