Explain dilute to obtain the desired concentration

Assignment Help Chemistry
Reference no: EM13232979

You have to make a solution of NADH, a biochemical cofactor, with concentration 50 g/mL. Not using a scale, you dissolve a small amount of NADH in 1mL water and measure an absorbance at 340nm of 0.874. The molecular weight of NADH is 663.43g ans it's absorbance coefficient is 6220 M^-1 cm^-1. How much of your solution do you have to dilute to obtain the desired concentration not exceeding volume of 1mL?

Reference no: EM13232979

Questions Cloud

What will happen to the equilibrium interest rate : Illustrate the following situations using supply and demand curves for money. No graph needed only state what will happen to the supply and/ or demand curves for money and what will happen to the equilibrium interest rate.
Define what is the value of ea : Pt(NH3)2cl2+h2o yields pt(NH3)2(H2o)cl+cl- has a rate that increases by a factor of 15 and a temeprature that inceases from 25 tp 50 degrees celsius what is the value of Ea?
What would the fed do if wanted to raise interest rates : During the summer of 1997, Congress and the president agreed on a budget package to balance the federal budget. The "deal," signed into law by President Clinton in August as the Taxpayer Relief Act of 1997, contained substantial tax cuts and expen..
Describe the life cycle of plasmodium : Describe the lifecycle of Plasmodium, the parasite that causes malaria.Start with infection. Describe the role of the sporozoites,merozoites, and gamteocytes in the life cycle
Explain dilute to obtain the desired concentration : The molecular weight of NADH is 663.43g ans it's absorbance coefficient is 6220 M^-1 cm^-1. How much of your solution do you have to dilute to obtain the desired concentration not exceeding volume of 1mL?
When you need to return the value of a function : In C programming: When you need to return the value of a function and you are not allowed to use the normal return value of the function, could you do it using: Call_by_val or Call_by_reference?
Explain why is the yield to maturity necessarily less : to pay for college, you have just taken out a $1000 gov. loan that makes you to pay $126 per year for 25 years. however, you don't have to start making the payment until you graduate from college two years from now.
Compute the equilibrium partial pressure of bromine gas : Calculate the equilibrium partial pressure of bromine gas. No approximations can be made because the equilibrium constant is too large.
Define the antibiotic resistanc : Antibiotic resistance is a wide spread public health issue. Explain why resistance develops so quickly, spreads so rapidly and widely, and is so hard to eradicate

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the ph of a strong acid solution nearer

it the pH of a strong acid solution nearer to O and a strong base to 14 while a weak adis and base are closer to there perspective approach to 7?

  State a voltaic cell consists of a strip of cadmium metal

A voltaic cell consists of a strip of cadmium metal in a solution of Cd(NO3)2 in one beaker, and in the other beaker a platinum electrode is immersed in a NaCl solution

  Explaining the molecular structure of fats

A fully animated PowerPoint presentation explaining the molecular structure of fats, the difference between saturated and unsaturated fats and why bromine can be used to test for fats and how saturated they are.

  State uv spectroscopy indicates the presence of a c

You are provided with the instrumental information below, identify the compound it was obtained for, explaining your reasoning.

  Calculate the mass of the sample of silver

It takes 1.35 kJ of energy to heat a sample of pure silver from 12.0°C to 15.5°C. Calculate the mass of the sample of silver.

  Compute the energy for the transition of one mole

Calculate the energy for the transition of one mole of electrons from N=10 to the N=7 level in a carbon

  Calculate the amount of heat required

Calculate the amount of heat required to heat a 3.6 kg gold bar from 25 C to 64 C. Specific heat capacity of gold is 0.128 j/g C.

  Explain how much is the oxidizing power

By how much is the oxidizing power of MnO4-/Mn2 couple decreased if the H concentration is deceased

  State the vapor pressure of the solution

what is the vapor pressure of the solution at 20 °C? Values at 20 degress celsius

  Compute the entropy of unfolding of lyzozyme

Lyzozyme(The protein) unfolds at a transition temperature of 75.5 degree celsius, the standard enthalpy of transition = 509 kJ/mol. Compute the entropy of unfolding of this protein at the temperature of twenty five degree celsius

  Determine the atoms emission and absorption spectra

how does the structure of an atom determine the atoms emission and absorption spectra.

  State balance the reaction and for the redox reactions

For the following reactions, identify the type (combination, combustion, decomposition, displacement, methathesis [double-displacement)] neutralization), balance the reaction, and for the redox reactions identify the oxidizing agent and reducing a..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd