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!
Monel metal is a corrosion-resistant copper-nickel alloy used in the electronics industry. A particular alloy with a density of 8.80 g/ cm^3. and containing 0.074 % Si by mass is used to make a rectangular plate that is 15.0 cm long, 12.5 cm wide, and 4.50 mm thick and has a 2.50 cm diameter hole drilled through its center such that the height of the hole is 4.50 mm. The silicon in the plate is a mixture of naturally occurring isotopes. One of the those isotopes is silicon-30, which has an atomic mass of 29.97376 amu and a percent natural abundance of 3.10 %. How many silicon-30 atoms are found in this plate?
A sample of pure silver jewelry has mass of 63.3g and is heated to a temperature of 111.4C. It is placed into a container of water at 17C.
High-purity benzoic acid (C6H5COOH; delta H rxn for combustion= -3227 KJ/mol) is used as a standard for calibrating bomb calorimeters. A 1.221-g sample burns in a calorimeter (heat capacity= 1365 J/degrees Celsius) that contains exactly 1.570 kg o..
If 26.64 mL of a standard 0.1650 M NaOH solution is required to neutralize 39.00 mL of H2SO4, what is the molarity of the acid solution
One liter of a buffer solution is prepared by dissolving 0.115 mol of NaNO2 and 0.070 mol of HCl in water. What is the pH of this solution? If the solution is diluted two fold with water, what is the pH?
A sample of helium has a volume of 3 liters when the pressure is 500 torr. What volume does the gas occupy at 300 torr?
Give the name and formula for the acid derived from each of the following anions. (using the format CO2 for CO2.)name formula
Calculate the freezing point of a solution of 500.0 g of ethylene glycol (C2H6O2) dissolved in 500.0 g of water. Kf = 1.86 degrees C/m and Kb
an ice cube tray holds 515 g water. if the water initially has a temperature of 21degc how many kilojoules of heat must
two engineers are calculating the molecular weight of a gas mixture containing oxygen and other gases. one of them uses
When 95% ethanol was used as the buffer only the mixture and methylene blue travelled up the plate, but when 65% ethanol was used as the buffer all 3 of them travlled up the plate. why did sodium fluorescein not move with 95% ethanol
For a hypothetical gas-phase reaction that is second order in A and third order in B, by what factor does the rate change if pA is decreased by 4 times and pB is doubled
Xanthine is a biological precursor of uric acid. What can you say about the molar absorptivity of xanthine if absorbance measurements of 250 μM, 300 μM, and 350 μM buffered aqueous solutions
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