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!
the method of standard additions was used to determine nitrite in a soil ample. an aliquot of 1.00 mL of the sample was mixed with 24.00 mL of a colorimetric reagent, and the nitrite was converted to a colored product with an absorbance of 0.300. A blank solution gave a signal of 0.020. To 50.00 mL of the original sample containing the colorimentric reagent, 1.00 mL of a standard solution of 1.00*10^(-3) M nitrite was added and the new absorbance was 0.530. What was the concentration of the nitrite in the original undiluted sample?
For many years drinking water has been cooled in hot climates by evaporating it from the surfaces of canvas bags or porous clay pots. How many grams of water can be cooled from 39°C
How many grams of barium hydroxide must be added to 2.37-L of distilled water to make a saturated solution
a 54.1 gram sample of an unknown hydrocarbon was burned in an excess of oxygen to form 88.0grams of carbon dioxide and 27.0grams of water. what is a possible molecular formula for the hydrocarbon?
Based on ion charges and relative ion sizes, rank these ionic compounds by their expected melting points SrO CsBr SrF2 RbF
Determine how much oxygen in grams is formed by the complete reaction of 38.88 of Na2O2.
Solution of Barium chlorate with a solution of Silver fluoride
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.
the enthalpy of formation of ethanol, C2H5OH, is -277.0 kJ/mol at 298.15k. calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 (g) and H2O.
How much of a 15.0M HNO3 solution should you use to make 850.0mL of a 0.300M HNO3 solution
one mole of nitrogen gas n2 is confined within a cylinder at the temperature of twenty five degree celsius and heated
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.
ammonia gas at 223degc and 90. atm flows into a reactor at a rate of 480. lmin. carbon dioxide at 223degc and 43 atm
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