1,698 Answered Questions for the topic biochemistry

02/06/22

Gaseous butane (CH3(CH2)2 CH3) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O).

If 18.5g of water is produced from the reaction of 34.3g of butane and 87.1g of oxygen gas, calculate the percent yield of water. Round your answer to 3 significant figures.= _____ %

02/06/22

Aqueous sulfuric acid (H2SO4) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na2SO4) and liquid water (H2O).

If 3.23g of sodium sulfate is produced from the reaction of 2.9g of sulfuric acid and 3.3g of sodium hydroxide, calculate the percent yield of sodium sulfate. Round your answer to 2 significant... more

02/04/22

Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide (NaBr) and liquid water (H2O).

What is the theoretical yield of sodium bromide formed from the reaction of 4.0g of hydrobromic acid and 3.4g of sodium hydroxide? Round your answer to 2 significant figures.

02/02/22

Gaseous butane (CH3(CH2)2 (CH3) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O)

What is the theoretical yield of water formed from the reaction of 4.65g of butane and 26.5g of oxygen gas? Round your answer to 3 significant figures.= _____ g

02/02/22

Liquid octane (CH3(CH2)6 CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O).

Suppose 10. g of octane is mixed with 61.2 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 2 significant digits.= ______ g

02/02/22

Aqueous sulfuric acid (H2SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na2SO4) and liquid water (H2O).

Suppose 18. g of sulfuric acid is mixed with 24.3 g of sodium hydroxide. Calculate the minimum mass of sulfuric acid that could be left over by the chemical reaction. Round your answer... more
Biochemistry

02/01/22

What are the enzymes that catalyze anaplerotic reactions that provide the necessary amounts of oxaloacetate?

a. isolate lyasesb. pyruvate decarboxylase, PEP carboxylasec. Asp aminotransferased. PEP carboxykinase, PEP carboxylase, pyruvate carboxylasee. PEP carboxykinase, PEP decarboxylase, pyruvate kinase
Biochemistry

02/01/22

Which of the following statements apply to natural higher unsaturated fatty acids: (select one or more)

a. they usually contain an even number of carbon atomsb. they are cis-isomers c. some representatives cannot be synthesized in the human bodyd. are broken down into separate pathways that are not... more

02/01/22

Lamda Max on Google Sheets

I am plotting a Abs vs Wavelength graph and am trying to find lamda max. I have already graphed it on google sheets but cannot figure out how to find the value.
Biochemistry

01/31/22

What is the significance of the payoff phase in glycolysis

Biochemistry Chemistry

01/27/22

Can all of those indicators for EDTA titration testing substitute each other?

I am doing an experiment testing Calcium content in milk but I do not have the Patton-Reeder indicator. Can all of those indicators for EDTA titration testing substitute each other? For say, Can I... more
Biochemistry

01/25/22

potassium ion channel, cell membrane ...

how to locate channel and cell membrane in a ribbon diagram
Biochemistry Science Biology Chemistry

01/15/22

What is the process of carbon tracing from leaves?

Biochemistry Science Biology Chemistry

01/09/22

What is the source of energy that powers a hydroelectric power plant?

A. The thermal energy of the water behind dams.B. The energy of the chemical bonds of water molecules.C. The sunlight that evaporated water that eventually falls as rain and fills the reservoir.D.... more
Biochemistry Biology Physiology Nursing

01/03/22

What is the ***primary*** mechanism of action of epinephrine in the treatment of anaphylactic shock

A.) increases metabolismB.) dilation of the bronchioles in the lungs by binding to beta 2 receptorsC.) dilation of the bronchioles in the lungs by binding to beta 2 & alpha 2 receptorsD.)... more

01/03/22

What is the difference between an additive Vs. synergistic drug interaction?

Additive: effects from two separate drugs increase the efficacy or adverse effects of one or both of the drugs and it is more predictable and sometimes useful. 1+1 = 2Example: If Tylenol decreases... more
Biochemistry Science Biology Chemistry

12/27/21

What is the difference between imitation and emulation ?

What is the difference between imitation and emulation ?

12/20/21

Calculate the concentration of sodium formate and formic acid when the buffer is at pH = 3.9.

You are preparing 1L of a 250mm formic acid buffer. The pka of formic acid is 3.75. Calculate the concentration of sodium formate and formic acid (each in mM) when the buffer is at pH = 3.9. At pH... more
Biochemistry Chemistry

12/12/21

Confusing Chemistry Questions

What causes the shape of a water molecule to be “bent”?Why is the model of hybridization used?What is a dipole?Why are H2O and NH3 polar molecules while CCl4 and CO2 and nonpolar?What accounts for... more

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