1,698 Answered Questions for the topic biochemistry

Biochemistry Math Chemistry

04/30/20

Chem help please?

The starting voltage of a fresh alkaline battery is 1.45 V The voltage decreases during discharge and is 0.70 V when the battery has delivered its rated capacity If we assume that the voltage... more
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04/30/20

Chemistry help please?

Under standard conditions what is the maximum electrical work in joules that the cell can accomplish if 67.0 g of Sn is consumed? A voltaic cell is based on the reactionSn(s)+I2(s)—>Sn^2+(aq) +... more
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Biochemistry

04/29/20

Biochemistry Question
b.) Describe the process of glycogenolysis step by step. [10]
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Biochemistry

04/29/20

Biochemistry/Glycogenolysis
a) Outline how glycogenolysis is regulated in the liver and muscle. [10] 
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Biochemistry

04/29/20

Biochemistry Question and overproduction of ketone bodies
b) Briefly account for the overproduction of ketone bodies in diabetes mellitus and starvation. [5] 
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04/29/20

Describe how the processes of boiling, sublimation, and efflorescence are similar.
Describe how the processes of boiling, sublimation, and efflorescence are similar.
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04/29/20

Consider the following list of compounds: MgSO4, C2H2, CH4, CaO. Which compounds are most likely to dissolve in water?
Consider the following list of compounds: MgSO4, C2H2, CH4, CaO. Which compounds are most likely to dissolve in water?
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04/29/20

Using data from the figure, graph the density as a function of the temperature for liquid water from 100°C to 4°C.
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04/29/20

Hydrogen fluoride (HF) has a lower boiling point than water (H2O), even though fluoride (F) has a greater electronegativity than oxygen (O). Why do you think that is?
Hydrogen fluoride (HF) has a lower boiling point than water (H2O), even though fluoride (F) has a greater electronegativity than oxygen (O). Why do you think that is?
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04/29/20

Printers often use surfactants in the printing of paper with ink. Explain why this might be.
Printers often use surfactants in the printing of paper with ink. Explain why this might be.
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04/29/20

Why is water (H2O) a liquid at room temperature while carbon dioxide (CO2) is a gas? What’s different about their structures that results in very different properties?
Why is water (H2O) a liquid at room temperature while carbon dioxide (CO2) is a gas? What’s different about their structures that results in very different properties?
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04/29/20

If 1 mole of each of the solutes listed below is dissolved in 1 L of water, which solute will have the greatest effect on the vapor pressure of its respective solution?

Which is the correct answer?A) C6H12O6B) CaSO4C) KBrD) MgCl2
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04/29/20

Calculate the boiling point elevation of a solution containing 43.8 g of glucose (C6H12O6) dissolved in 359.9 g of water. Calculate the freezing point depression for the same solution.
boiling point elevation = _____ degrees Celsiusfreezing point depression = ____ degrees Celsius
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04/28/20

A scientist measures the standard enthalpy change for the following reaction to be 593.6 kJ:
A scientist measures the standard enthalpy change for the following reaction to be 593.6 kJ:2H2O(l)  2H2(g) + O2(g)Based on this value and the standard enthalpies of formation for the other... more
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04/28/20

The standard enthalpy change for the following reaction is -1.39×103 kJ at 298 K. 
The standard enthalpy change for the following reaction is -1.39×103 kJ at 298 K.  3 Mn(s) + 2 O2(g)Mn3O4(s)    ΔH° = -1.39×103 kJ  What is the standard enthalpy change for the reaction Mn3O4(s)3... more
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04/28/20

what is the standard enthalpy change for the reaction:
Given the standard enthalpy changes for the following two reactions:(1) 2Ni(s) + O2(g)2NiO(s)......H° = -479.4 kJ(2) 2Zn(s) + O2(g)2ZnO(s)......H° = -696.6 kJwhat is the standard enthalpy change... more
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Biochemistry Biology Microbiology

04/28/20

chi square question for biology

Chi SquareConsider the scenario where one parent is type AB blood and the other parent is heterozygous for type B blood. A sample of 150 couples collectively produced a total of 38 children... more
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04/28/20

What is the value of H for the chemical equation givenWhat is the value of H for the chemical equation given
The reaction of  carbon monoxide(g) with hydrogen(g) to form methane(g) and water(g) proceeds as follows:CO(g) + 3H2(g) CH4(g) + H2O(g) When 7.45 grams of CO(g) react with... more
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Biochemistry Biology Microbiology

04/28/20

meiosis questions for biology

Meiosis  After the first Meiotic division, are the daughter cells haploid, diploid, or polyploid? After the second Meiotic division, are the daughter cells haploid or diploid? Which 2 processes in... more
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Biochemistry Biology Microbiology

04/28/20

I need help with mitosis questions for biology

help me step by step on these questions I am confused on the concept for these questions for mitosis can I have someone explain these questions In which phase of interphase does DNA... more
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Biochemistry

04/28/20

help! not sure how to do this problem
Liquid octane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . If 1.79g of water is produced from the reaction of 3.4g of octane and 6.8g of oxygen gas,... more
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04/27/20

Gases Liquids and Solids 4.27.20
A solution of ethanol CH3CH2OH and water that is 10.% ethanol by mass is boiling at 98.7°C. The vapor is collected and cooled until it condenses to form a new solution.Calculate the percent by mass... more
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04/26/20

Gases Liquids and Solids

A certain liquid X has a normal freezing point of 5.50°C and a freezing point depression constant = Kf 1.83·°C·kgmol−1. A solution is prepared by dissolving some iron(III) chloride (FeCl3)... more
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Biochemistry

04/26/20

i need help with this problem
Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water  and carbon dioxide  chemically react to form the simple sugar glucose  and oxygen... more
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04/25/20

Precipitation General Chemistry Question
Is a precipitate expected to form when 50.0 mL of 0.0010 M BaCl2 is added to 50.00 mL of 0.00010 M Na2SO4? Ksp for barium sulfate is 1.1 x 10-10.
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