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!
A.) A UV/V is spectrometer is used to measure the absorbance of a solution of hemoglobin bound to oxygen at 590 nm. The molar absorptivity was determined to be 8.57 x 10^4 M^-1cm^-1. The cuvette used had a 1.00 cm sample pathlength. The measured absorbance was 0.180. What was the concentration of hemoglobin in the solution?
B.) What would the absorbance of the previous solution be if the pathlength were 1.80 cm?
A 10 mL sample of a solution of Pb(ClO3)2 was diluted with water to 21 mL. A 10 mL sample of the dilute solution was found to contain 0.021 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution?
If 0.5mL of .3% (mass) ethanol is oxidized with 10mL 0.005M K2Cr2O7 , what volume of 0.05M Fe(NH4)2(SO4)2.6H2O is needed to titrate the excess potassium dichromate
How many moles of I2 were used in the titration? How many moles of SO2 were in the 5.00 mL sample of wine? Determine the mass of SO2 (in mg) in the 5.00 mL sample of wine. Determine the concentration of SO2 (in mg/L) in the wine.
Draw and construct the open-chain model of glucose, How many chiral carbons are in the open-chain version of glucose?
calculate how many moles of nh3 form when each quantity of reactant completely reacts.3n2h4 l 4nh3 g n2 g2.6 mole
A sample of gas has a mass of 38.7mg . Its volume is 224mL at a temperature of 57 degrees Celsius and a pressure of 868torr . Find the molar mass of the gas.
Determine de yield or recovery percent in the synthesis of an adduct made with 0.10 mL of furan and 0.20g of maleic anhydride.
A total of 0.155 of this subunit was dissolved in enough water to produce 2.00 of solution. At 28 the osmotic pressure produced by the solution was 0.138 . What is the molar mass of the protein?
How many moles of chloride ions are there?
If you fill the larger tank with oxygen to a pressure of 155 atm, to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
A sample of indium chloride weighing 0.5000g is found to contain 0.2404g of chlorine. What is the empirical formula of the indium compound
Aluminum has chemical propertied that are similar to magnesium. What observation might you expect with the addition of 6M HCl to an aluminum strip
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