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!
How many grams of dry NH4Cl need to be added to 1.60L of a 0.700M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.98? Kb for ammonia is 1.8X10^-5 Express your answer (mass of NH4Cl) numerically in grams to three significant figures.
Arsenic Acid (H3AsO4) has Ka values of 2.5*10^-4, 5.6*10^-8, and 3*10^-13. What is the concentration of the HAsO42- dianion in a solution
What quantity of heat energy transfer is required to vaporize 0.500 mL of mercury at 357 °C, its normal boiling point? The density of Hg (l ) is 13.6 g/mL.
suppose the condenser operates as a total condenser at 40 degrees, the production rate of the overhead product is 75kmol/h. The ratio of reflux and overhead product is 1.5:1.
A box contains 12600 red marbles and 885000 yellow marbles. What sample size is required to reduce the sampling standard deviation of red marbles to 1.85%?
26.0cm of a solution containinh 1.86g of X2CO3 in 250 reacted completely with 27.0cm of solution contain 3.65g of HCL per dm,calculate the molar mass of X2CO3 and relative atomic mass of X, and identify X.
If the coal is burned in a power plant that uses 1900 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide?
if i have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 liter what will the new pressure inside the piston be?
Because the potential of pH electrodes can vary, it is necessary to CALIBRATE a pH electrode before use. For many uses, a two-point calibration procedure is appropriate.
4HCl + MnO2 = MnCl2 + 2H2O + Cl2 When 1.22 mol of HCl reacts with excess MnO2, how many moles of Cl2 form?
an area of 1.15 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column?
The sulfur dioxide stack gas concentration from fossil fuel combustion is 2ppm(v). Determine the stack-gas concentration in units of micro grams/m^3 assume 0 degrees Celsius and1atm.
a solution that contains 5.94 ppm iron(III) is treated with an appropriate excess of KSCN and is diluted to 50 ml. What is the absorbance of the resulting solution at 580 nm in a 2.5 cm cell
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