1,708 Answered Questions for the topic biochemistry

10/17/19

Chemistry: Equilibrium Math Question 7

Consider the equilibrium between hydrogen sulfide and its gaseous elements:2 H2S(g) ↔ 2 H2(g) + S2(g) KP = 2.023E-6 at 908.0 Kif a vessel is initially charged with 8.35 bar of pure H2S(g), what is... more

10/17/19

Chemistry: Equilibrium Math Question 6

Determine the equilibrium vapor pressure of germanium metal at 508.0 C. The standard enthalpy of vaporization of germanium is 376.6 kJ/mol and the vapor pressure at 100 C is 1.6E-32 Pa. Be sure to... more

10/17/19

Chemistry: Equilibrium Math Question 5

A closed vessel is charged with 0.23 bar of hydrogen gas and allowed to react with excess I2(s) at 25 C.H2(g) + I2(s) ↔ 2 HI(g)What is the final equilibrium pressure of HI(g) in the vessel? KP = 0.284 more

10/17/19

Chemistry: Equilibrium Math Question 4

At 25 C, the partial pressure of CO2(g) in a bottle of soda water is 1 bar. Calculate the equilibrium concentration of dissolved carbon dioxide under these conditions. The equilibrium constant for... more

10/17/19

Chemistry: Equilibrium Math Question 3

A2B ↔ 2A + BWith this simple equation, if you start with 0.815 M A2B, and at equilibrium 53% of it has decomposed, what is the equilibrium constant?

10/17/19

Chemistry: Equilibrium Math Question 2

The equilibrium constant for dissolving oxygen gas in aqueous solution is 1.33E-4. Compute the equilibrium concentration of dissolved oxygen, in mg L-1 when the partial pressure of O2 above the... more

10/17/19

Chemistry: Equilibrium Math Question

If a closed vessel is charged with 89000.0 Pa of nitric oxide and allowed to react with excess liquid bromine, what is the equilibrium partial pressure of the product?NO(g) + ½ Br2(l) ↔ NOBr(g)... more

10/16/19

AP Chemistry Question

Which of the following ions has the same number of electrons as Br -. A. Ca2+B. K+C. Sr2+D I-E Cl-
Biochemistry Biology Chemistry

10/16/19

Is it possible to chemically synthesize blood?

Like we know all the chemical compositions of blood and add the ingredients. We even know the compositions of each blood group and synthesize it to be of a particular group, say A - (which is... more
Biochemistry Biology Chemistry

10/03/19

Why does biological tissue shrink in ethanol?

Moving aldehyde-fixed biological tissue (in my case, 200um thickness mouse brain slices) from water to ethanol shrinks them considerably, even when transitioning slowly. I know that ethanol moves... more
Biochemistry Chemistry

09/23/19

CHEMISTRY stoichiometry and moles and combustion problem

Methanol has the chemical formula CH3OH. If 4 moles of methanol are combusted, how many moles of oxygen will be consumed? a- 2molb- 3 molc- 4 mold- 6 mole- not enough information
Biochemistry

09/17/19

The pH of the titration should plateau at a pH above_______

09/15/19

Molecules and Formula unit

some times we are asked to write the equation in particles form. I was wondering what is the difference between molecules and formula unit cause google didn't help.

09/09/19

Specific heat for Chemistry

A 121 g piece of metal is heated to 282 degree Celsius and dropped into a 85.0 gram of water at 26.0 degree Celsius. If the final temperature of water and metal is 58.4 degree Celsius, what is the... more

09/04/19

How much of each do we add? - DNA Extraction Buffer

We are given: 50 mls of DNA extraction buffer2% SDS,   100mM tris pH 8,     10mM EDTA,    and proteinase K [1 ug/ml] How much of each do we add?
Biochemistry

08/28/19

How many milliliters of gasoline have a mass of 1.0 kg (D=0.74g/mL)?

Biochemistry

08/27/19

Convert 5.5×1010 picoseconds to seconds.

Perform each of the following conversions using metric conversion factors.

08/27/19

What is the best way to go about solving chemistry problems?

Biochemistry Chemistry Mcat

08/08/19

What is the net ionic equation?

08/05/19

Can I kill bacteria with distilled water?

Given that bacteria are hypertonic (contain more salts) compared to distilled water, and that they rely on ion concentration differences across the plasma membrane to survive, can I kill a... more

08/05/19

Are quaternary protein monomers unique to a particular protein complex?

I know that quaternary protein structures are formed exclusively via non-covalent bonds. My biochemistry professor discussed a viral capsid that is essentially one quaternary structure with 240... more
Biochemistry Temperature Sensation Taste

08/04/19

Cold water sour taste?

Recently I underwent a wisdom tooth extraction, and while there is still numbness I have observed something peculiar. If I drink cold water, it tastes sour, however the same effect is not observed... more

08/02/19

What if I can’t achieve a bachelor’s in Biology?? Help

Listen, I have wanted to go into the medical field my whole life. I know I will thrive in healthcare and that it is what I want to do; however, my issue is that I struggled with every single... more

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