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!
Cobalt was used as an internal standard to analyze a sample of titanium with atomic absorption spectroscopy. A mixture was prepared by combining a 6.00 mL Ti solution of unknown concentration with 3.50 mL of a 10.2 ?g/mL solution of Co. The atomic absorbances were measured as 0.155 and 0.195 for Ti and Co, respectively. As a reference, a standard mixture containing 1.94 ?g Co/mL and 1.97 ?g Ti/mL was prepared and measured to have a signal-to-signal ratio of 2.25 Ti: 1.00 Co.
Determine the concentration (moles/L) of titanium in the original unknown solution.
The ester ethyl p-nitrobenzoate is more reactive towards nucleophilic acyl substitution than ethyl p-methyoxybenzoate.
What would be the charge of the imidazole side chain of histidine at pH 7? Assume the pKa of the side chain is 6.0. 8) Assume the pKa of the alpha-carboxyl group = 2.0 and the pKa of the alpha-amino group = 10.0. What would be the net charge of gly..
What are the masses of CO and CO2 in the tank and what are the partial pressures of each of the three gases at 24C?
Calculate the pH after the following additions of the KOH solution (a) 10.0 mL (b) 11.5 mL (c) 15.0 mL (the Ka for CH3COOH = 1.8 x 10^-5)
Molecular iodine, I2(g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s^-1. If you start with 7.0×10?2 M I2 at this temperature
If an automobile is able to travel 224 mi on 10.0 gal of gasoline, what is the gas mileage in km/L
A sample of oxygen is collected by water displacement at a temperature of 35C when the barometric pressure is 752 mm Hg. What is the partial pressure of the dry gas?
would the mass of the precipate collected be more, unchanged, or less if performing the reaction with reactants
In 1986 an electrical power plant in Taylorsville, Georgia, burned 8,376,726 tons of coal, a national record at that time.
A bicycle tire is filled with air to a pressure of 75. psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees celcius. The volume of the tire increases by 4.0%. What ..
2. 0.33g of KOH is dissolved in 350.0ml of ethanol and 1.45g of C2H5I is dissolved in 350.0ml of ethanol. Assuming the reaction is first order, when equal volumes of the two solutions are mixed, what is the initial rate at 40oC?
Determine the ph ( to 1 decimal place) of a slution prepered by adding 125ml of 0.759M acetic acid to 10.3g of sodium acetate. the pKa of acetic asid is in table 10.2. Assume the volume of the solution does not change?
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