Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
It is your first day of work in your new laboratory job. You are asked to prepare 700 mL of PBS (phosphate buffered saline). The PBS needs to be pH 7.40, with 25 mM phosphate and 140 mM NaCl. You are given a bottle of NaCl (FW = 58.45), a 1.00 M Na2HPO4 stock solution, and a 1.00 M NaH2PO4 stock solution. Describe how to prepare this buffer. (For H3PO4: pK1 = 2.12, pK2 = 7.21, pK3 = 12.66)
Given that 19.0 moles of carbon monoxide gas are present in a container of volume 33.6 L, what is the pressure of the gas (in atm) if the temperature is 17 °C
What is the density of lead (in ) if a rectangular bar measuring 0.50 in height, 1.55 in width, and 25.00 in length has a mass of 219.5 ?
Define the human eye is a complex detector for visible light. The optic nerve requires a minimum of 2.0 x 10-17 J of energy to trigger a series of impulses that ultimately reach the brain. Explain how many photons of blue light 9 475 nm) are neede..
a 4.5 g sample of LiCl at 25 C dissolves in 25 mL of water also at 25 C. The final equilibrium temperature of the resulting solution is 60.8 C. What is the enthalpy of solution.
A is allowed to come in contact with substance B. B has a mass of 46.28 grams and its initial temperature is 86.5oC. These two substances reach thermal equilibrium at a temperature of 64.2oC. If the specific heat capacity of substance B is 1.17 J/..
Calculate the wavelength of the light in nanometers corresponding to this transition. You can use the following values for your calculations: Planck's constant (h) = 6.626x10^-34 Jxs, speed of light (c) = 2.998x10^8 m/s, and 1m=10^9nm.
Spilling some of the reaction mixture. b.Adding too much baking soda. c.Adding too much vinegar. d. Not allowing the reaction to go to completion.
Question- What enzyme catalyzes the formation of inositol 1,4,5-triphosphate from inositol 1,4-diphosphate? What is the structure of the reactant and the product
A municipal wast water plant has phosphate levels of 26 ppm. what is the concentration in unit of moles/L
Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solution on the left.
calculate the change internal energy (E) for a system that is giving off 45.0kJ of heat and is performing 855J of work on the surroundings.
Calculate th pH of 1.00 L of a buffer of 1.00 M CH3COONa/1.00 M CH3COOH to which 0.210 mol of NaOH has been added
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd