1,708 Answered Questions for the topic biochemistry

12/13/20

Chemistry: Pi Bonding
What atomic or hybrid orbitals make up the  bond between C1 and C2 in dichloroethylene, CH2CCl2 ?Orbital on C1?Orbital in C2?How many σ bonds does C1 have in CH2CCl2 ? How many  bonds does C1 have ? 
Follows • 2
Expert Answers •1

12/13/20

Chemistry: Pi Bonding
If an atom has sp3 hybridization in a molecule:The maximum number of σ bonds that the atom can form is _____The maximum number of p-p  bonds that the atom can form is ____
Follows • 1
Expert Answers •1

12/12/20

Chemistry: Pi Bonding
If an atom has sp2 hybridization in a molecule:The maximum number of σ bonds that the atom can form is _____The maximum number of p-p  bonds that the atom can form is _____
Follows • 2
Expert Answers •1

12/12/20

Chemistry: Pi Bonding

What atomic or hybrid orbitals make up the  bond between C1 and C2 in propyne, CHCCH3 ?Orbital on C1?Orbital on C2?How many σ bonds does C1 have in CHCCH3 ? How many  bonds does C1 have ? 
Follows • 2
Expert Answers •1

12/12/20

Sigma Bonds and Hybrid Orbitals
What atomic or hybrid orbitals make up the sigma bond between C and H in methane, CH4?orbital on C?orbital on H?What is the approximate H-C-H bond angle?______°
Follows • 2
Expert Answers •1
Biochemistry Math Biology Physics

12/12/20

Serial dilution/dilution factor problem
How would you prepare a 10-2 and 10-4 dilutions if you are provided with 2 saline tubes each containing 4.95ml saline and a tube of undiluted culture.What is the initial concentration of undiluted... more
Follows • 1
Expert Answers •1

12/08/20

Choose all correct answers. The plasma membrane...
Choose all correct answers:The plasma membrane...A.Contains Cholesterol moleculesB.Is formed of phospholipids; with polar and non-polar structuresC.Contains DNA moleculesD.Has two identical faces... more
Follows • 1
Expert Answers •1
Biochemistry

12/08/20

Which histidine species would be present at pH 7.2?
Follows • 1
Expert Answers •1

12/08/20

please help i need help please
A farmer has been using calcium for decades to help maintain chemical balance in the soil used to grow his crops. Unfortunately, the farmer's calcium supplier has been steadily increasing the price... more
Follows • 1
Expert Answers •1
Biochemistry Biology Microbiology

12/07/20

The specific growth rate (u) is a bettter measure of the cell's growth rate than dX/dt •Why ?
It is about batch fermentation process and bacterial growth curves. u=dx/dt
Follows • 1
Expert Answers •1

12/03/20

standard Enthalpy of formation

how do i find the standard enthalpy of formation of glucoamylase? How do i estimate it
Follows • 2
Expert Answers •1
Biochemistry

11/29/20

What is the difference between protein renaturation and protein refolding?

Are protein renaturation and protein refolding the same thing? If they are not what is the difference between them?
Follows • 1
Expert Answers •1

11/28/20

Enthalpy of Formation
Substance H2O(l) H2O(g) CO2 (aq) CO2 (g) CO(g) CH4 (g) C2H6(g) Hfo (kJ/mole) -285.83 -241.82 -413.82 -393.51 -110.53 -74.81 -84.68 Use the enthalpy of formation data in the... more
Follows • 2
Expert Answers •1

11/28/20

Enthalpy (Chemistry)
Calculate the enthalpy of the following chemical reaction:CS2(ℓ) + 3O2(g) ---> CO2(g) + 2SO2(g)Given: C(s) + O2(g) ---> CO2(g) ΔH = −393.5 kJ/mol S(s) + O2(g) ---> SO2(g) ΔH =... more
Follows • 2
Expert Answers •1

11/28/20

Enthalpy (Chemistry)
Find the ΔH for the reaction below, given the following reactions and subsequent ΔH values:N2H4(l) + H2(g) → 2NH3(g)N2H4(l) + CH4O(l) → CH2O(g) + N2(g) + 3H2 (g)        ΔH = -37... more
Follows • 2
Expert Answers •1

11/28/20

Enthalpy (Chemistry)
Find the ΔH for the reaction below, given the following reactions and subsequent ΔH values:FeO (s) + CO (g) --> Fe (s) + CO2 (g)      = ? Fe2O3 (s) + 3 CO (g) --> 2 Fe (s) + 3 CO2 (g)     ... more
Follows • 2
Expert Answers •1

11/28/20

Enthalpy (Chemistry)
Consider the reaction: 2 SO2 (g) + 2 H2O (g) --> 2 H2S (g) + 3 O2 (g)Calculate the  rxn using the standard enthalpy of formation data provided.SO2 (g) -296.8 kj/molH2O (g) -241.8 kj/molH2S (g)... more
Follows • 2
Expert Answers •1

11/24/20

Ions: Electron configuration
Write the complete electron configuration for the nickel(II) ion.Using NOBLE GAS notation write the electron configuration for the chromium(III) ion.
Follows • 2
Expert Answers •1

11/24/20

Ions: Electron Configuration
Write the complete electron configuration for the common monatomic ion formed by the element bromine, Br.This ion is a(n) _______cationanion with a charge of____?
Follows • 2
Expert Answers •1

11/24/20

Ions: Electron Configuration
Write the complete electron configuration for the chromium(III) ion.Using NOBLE GAS notation write the electron configuration for the iron(II) ion.
Follows • 2
Expert Answers •1

11/23/20

Ions: Isoelectronic series
Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with the barium ion, Ba2+.
Follows • 1
Expert Answers •1

11/23/20

Ions: Isoelectronic Series
Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with Xe.
Follows • 1
Expert Answers •1

11/23/20

Ions: isoelectronic Noble Gas
A monatomic ion with a charge of +1 has an electronic configuration of 1s22s22p63s23p64s23d104p65s24d105p6.This ion is a(n) _______cationanion.What is the chemical symbol of the noble gas this ion... more
Follows • 1
Expert Answers •1

11/23/20

Ions: isoelectronic Noble Gas
A monatomic ion with a charge of -2 has an electronic configuration of 1s22s22p6.This ion is a(n) _______cationanion.What is the chemical symbol of the noble gas this ion is isoelectronic... more
Follows • 1
Expert Answers •2

11/23/20

Ions: Electron Configuration
Write the complete electron configuration for the common monatomic ion formed by the element rubidium, Rb.This ion is a(n) _______cationanion with a charge of?
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.