1,377 Answered Questions for the topic biochemistry

Biochemistry Math Chemistry

6h

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How much heat is required to warm 35.21g of liquid water at 88.53°C to steam (gaseous water) at 124.67°C?Specific Heat (ice) = 37.6 J/K*mol; Specific Heat (water) = 75.3 J/K*mol; Specific Heat... more
Biochemistry Math Chemistry

14h

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The enthalpy of fusion for aluminum metal is 10.9kJ/mol. How much heat is required to melt 9.75g of solid aluminum metal at its melting point? Report your answer in units of kJ. (Show steps)
Biochemistry Math Chemistry

20h

Help me solve this problem

The specific heat of solid aluminum metal at 273.15K and 1 bar pressure is 0.897 J/g*K. When 27.49kJ of heat is added to a block of Al(s), the temperature rises from 280.9K to 337.3K. What is the... more
Biochemistry Chemistry

21h

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The specific heat of solid copper metal at 273.15K and 1 bar pressure is 0.385 J/g*K. How much heat (in units of kJ) is required to raise the temperature of 89.83g of Cu(s) from 288.3K to... more
Biochemistry

7d

Provide at least 3 properties that make water essential for life.

Chemistry Conversion Question

When doing metric/unit conversions, how do you know when it is supposed to be multiple steps? For example one of my homework questions asks how many centimeters are in 8 nanometers. I have to go... more

19d

HELP PLEASEEEE ASAP

consider the reaction and write the letter of the correct answer. a. → b. ←PCl5(g) + heat←→PCl3 (g) + Cl226. Addition of C1227. Increase in pressure28. Removal of heat29. Removal of PCl330.... more
Biochemistry Math Science Chemistry

05/28/22

Calculate the cell potential of the electrolytic cell

Calculate the cell potential of the electrolytic cell, identify the anode and the cathode and write thebalanced equation for the overall cell reaction that occurs according to the reaction shown... more
Biochemistry Science Chemistry Physics

05/27/22

Determine if the reaction is spontaneous or not:

a. 3 Li + Al ⟶ 3 Li + Al3+ E ̊ = - 1.39 V
Biochemistry Math Science Physics

05/21/22

Asteroid split lab

Background: The two tables below contain both the assumptions and parameters needed to evaluate if the plucky heroes in Armageddon could save Earth. In order to miss, Earth two conditions must... more
Biochemistry

05/15/22

Titration Question

You titrate 25.0 mL of HCl solution of an unknown concentration with a 0.160 M NaOH solution. Complete neutralization of the HCl solution requires the addition of 41.6 mL of titrant.Calculate the... more
Biochemistry Science Biology Anatomy

05/14/22

The circulatory system

using this diagram http://2.bp.blogspot.com/_Obwvpc-KSC4/S7_cIBqIOKI/AAAAAAAAAZA/ASV_3vwTe00/s1600/system+circulation.JPGwrite down where the blood flows. Starting from the small intestines going... more
Biochemistry Chemistry

05/14/22

Prepare 100. ml of 0.1 N H2S04 by diluting from original H2S04. Eq. wt. of H,S04 = 98/2=49 . dH2S04= 1.08 Purity =98%

Prepare 100. ml of 0.1 N H2S04 by dilutingfrom original H2S04.Eq. wt. of H,S04 = 98/2=49 .dH2S04= 1.08Purity =98%
Biochemistry Chemistry

05/14/22

Prepare 100. ml of 0.1 N H2S04 by diluting from original H2S04.

Prepare 100. ml of 0.1 N H2S04 by dilutingfrom original H2S04.Eq. wt. of H,S04 = 98/2=49 .dH2S04= 1.08Purity =98%I need the solution
Biochemistry Chemistry

05/14/22

100ml of 0.1 N H2SO4 by diluting from original H2SO4.

how to solve this? 100ml of 0.1 N H2SO4 by diluting from original H2SO4.Atomic mass of: O=16 , H=1 S=32d H2SO4=1.08 purity%=98%i need the solution.

05/12/22

What would be the % calcium in a leafy vegetable extract applying 30.50 grams sample absorbing 9.8 mL of 0.0575 M EDTA solution?

I had a hard time solving this because our given formula is shown like this:% = V x M.F. x titer value / Wt(mg) ÷ MW x 100I do not know how to identify the M.F. and the titer value based on the... more

05/12/22

What is the colour of the Metal-EDTA complex shown below?

MgIn + EDTA 🡢 MgEDTA + In
Biochemistry Math Science Physics

05/11/22

Spiderman stops a train

Background: Spiders can lift up to 8 times their own bodyweightThe force spiderman exerts is constant over the period of time he attempts to stop the train.The info given:The weight of the Train... more

Basic Chemistry

Please do show the complete solution and answer, that's all and thank you. 7.50 g of sodium chloride are added to 3200 mL of water. Find the mole fraction of the sodium chloride and of the water in... more
Biochemistry Science Biology Anatomy

05/09/22

EXPLAIN THE DIAGRAM BELOW

EXPLAIN THE DIAGRAM BELOWDiagram- https://imgur.com/JKqEiAQ
Biochemistry Science Biology Chemistry

05/07/22

What are the oxidizing and reducing agent from these chemical reactions? And how many electrons did it gain (oxidizing) and lose (reducing)?

a.) CuO + H2 = Cu + H2Ob.) Zn + Pb(NO3)2 = Pb + Zn(NO3)2

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