1,698 Answered Questions for the topic biochemistry

04/21/21

Biochemistry question
Biochemists usually discuss the incorporation of unnatural amino acids into proteins produced by heterologous protein expression. What 3 things, (besides the unnatural amino acid) would... more
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Biochemistry Math Algebra 1 Algebra 2

04/21/21

can someone provide a explanation on how i need to solve this please ?

At the grocery store it costs $17.10 for six pounds of turkey. How much does it cost for one pound of turkey? 
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Biochemistry Science Chemistry Stoich

04/20/21

How many copper atoms are in your 25.0 mL of copper (ii) sulfate solution?
You need to use Avogadro's number in this question!
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Biochemistry Science Chemistry Stoich

04/20/21

How many sodium atoms are in 50 mL of salt (sodium chloride)?
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Biochemistry Math Algebra 1 Algebra 2

04/19/21

NEED HELP! CAN YOU EXPLAIN TO ME WHAT I AM SUPPOSE TO DO OR HOW TO SOLVE THIS QUESTION
The ratio of the number of cats to dogs is 3:5. How many dogs would there be if there were 12 cats? what am I doing wrong I did 3+5=8 12/8=1.51.5x5+ 7.5 but that's wrong did i miss a step ?
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Biochemistry Science Biology Chemistry

04/16/21

How agrin and also neuregulin work to maintain muscle viability ?
How agrin and also neuregulin work to maintain muscle viability ?
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04/15/21

can someone help me please differentiate what is soluble from slightly soluble.
Since searching the net makes me even more confused.
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Biochemistry Science Biology Chemistry

04/14/21

Have to answer before midnight! Please help, thank you!
A gas sample initially has a pressure of 2atm and a volume of 58L. If the other gas parameters are kept constant, and the volume is adjusted to 4L, what is the new pressure in atm? 
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Biochemistry Chemistry

04/14/21

Amino acids degradation 
show the path of aspartic acid degradation to CO2 H2O and urea
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Biochemistry

04/14/21

Biochemistry Amino Acid Assignment
An assignment is asking what the results would be in the protein 5B1a (PBD iD) when Histidine 291 would be changed to Alanine. I struggle with figuring out the implications of size like polar and... more
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Biochemistry Science Biology Chemistry

04/13/21

I need help solving equation before midnight! Help, please and thank you very much!
A sample of 568 mL of chlorine gas originally at 25° C was cooled to -25° C. What is thevolume of the cooled gas?
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Biochemistry Science Biology Chemistry

04/13/21

I need help solving before midnight! Please and thank you !!
A container holds 50.0 L of nitrogen at 25° C and a pressure of 750 mm Hg. What will beits volume if the temperature increases to 35° C?
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Biochemistry Chemistry

04/13/21

will egg yolk and pure cholesterol test positive in dunstan's test?
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04/13/21

HELP! I need help solving these chemistry questions before midnight! Please and thank you!
a.A sealed container of an unknown gas has a volume of 2.5 L and a pressure of 5 atm at 25​o​C.How much gas is in the container?b.If the mass of the gas in the container is 40.5 g, what is the... more
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Biochemistry Science Chemistry Physics

04/13/21

I need help before midnight! Please and thank you!
What ​mass​ of chlorine gas is contained in a 10.0 L container at 27°C and 3.50 atm of pressure?
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04/12/21

NEED HELP! CAN YOU EXPLAIN TO ME WHAT I AM SUPPOSE TO DO OR HOW TO SOLVE THIS QUESTION.
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Biochemistry Math Science Chemistry

04/12/21

can you explain this question in simple terms

What is the solution of x/9 = 42/54?
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Biochemistry Math Algebra 1 Algebra 2

04/12/21

NEED HELP! CAN SOMEONE EXPLAIN HOW OR WHAT IM SUPPOSE TO DO? I NEED A GOOD EXPLAINATION PLEASE

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Biochemistry Math Algebra 1 Calculus

04/12/21

can someone help me with this below question (help needed)
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Biochemistry Math Science Chemistry

04/12/21

quantum numbers
a.) List all of the possible values for l in the 2nd energy level (n = 2). Leave fields blank if they are not needed.
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04/12/21

In the above equation how many moles of water can be made when 180.7 grams of HNO3 are consumed?
S   +   6 HNO3  -->  H2SO4  +  6 NO2  +   2 H2OIn the above equation how many moles of water can be made when 180.7 grams of HNO3 are consumed?Round your answer to the nearest tenth. If you... more
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04/12/21

(Chemistry) Mass-to-Mole Conversion
For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make 152.5 grams of methane, CH4 ?Round your answer to the nearest tenth. If you answer is a whole number like 4, report the... more
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04/12/21

In the above equation how many moles of N2 can be made when 188.7 grams of CuO are consumed?
2 NH3  +  3 CuO  --> 3 Cu  +  N2  +   3 H2OIn the above equation how many moles of N2 can be made when 188.7 grams of CuO are consumed?Round your answer to the nearest tenth. If you answer is a... more
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04/12/21

HELP ---> 3 Cu  +   8HNO3  --> 3 Cu(NO3)2   +  2 NO  +  4  H2O
3 Cu  +   8HNO3  --> 3 Cu(NO3)2   +  2 NO  +  4  H2OIn the above equation how many moles of water can be made when 144.1 grams of HNO3 are consumed?Round your answer to the nearest tenth. If you... more
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04/10/21

Common Ion effect: Calculate solubility

The molar solubility of silver phosphate in a 0.259 M silver nitrate solution is _____ M.
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