+61-413 786 465
info@mywordsolution.com
Home >> Chemistry
How many grams of H2O can be cooled from 45 degrees C to 15 degrees C by the evaporation of 63 grams of water. The heat of vaporization is 2.4 KJ/gram and the Specific Heat of water is 4.18 J/gK?
Chemistry, Academics
2 moles of a compound are allowed to react ina foam coffee cup that contains 197 grams of water. The reaction caused the temperature of the water to rise from 21 to24.7 degrees Celsius. What is the enthalpy of this react ...
The reaction of solid dimethylhydrazine ((CH3)2N2H2) and liquefied dinitrogen tetroxide (N2O4) has been investigated as a rocket fuel; the reaction produces gaseous carbon dioxide (CO2) nitrogen (N2) and water vapor (H2O ...
Calculate the boling point of a solution prepared by adding 11.5 g naphthalene (C10H8) to 250.0 g of benzene. Naphthalene is a non-electrolyte solute, and benzene is an organic solvent that exhibits a boiling point of 80 ...
Please attach sources.websites used if any. Thanks! Determine the mass of chlorine in the original sample (39.096g) as the difference in mass between the anhydrous sample (38.585g) and the mass of copper. From the mass o ...
Barium Iodate (Ba(IO3)2) forms an equilibrium with is ions in solution. How does adding additional barium to the solution affect the Ksp of barium iodate. Explain.
Calculate volume in milliliters of a 1.96 mol/L calcium bromide solution that contains 275. mmol of calcium bromide CaBr2. Round your answer to 3 significant digits.
How many formula units of Na2SO4are present in a 450 gram sample of the salt? Use 6.022×1023mol-1 or Avogadro's number. Report your answer in scientific notation. Your answer should have two significant figures.
The Earth receives radiation from the Sun at the top of the atmosphere with a spectrum that resembles a blackbody emitter at a temperature of nearly 6000 K, although the temperature inside the Sun is about 15 million K. ...
What is the molarity, to the hundredths place, of 5.0 g HPO3 in 300. mL of solution?
Suppose that a student is determining the total base content of an antacid tablet by performing a back titration. He/she weighs out a .3012g portion of a tablet whose total weight is 1.5312g, dissolves this in exactly 40 ...
Start excelling in your Courses, Get help with Assignment Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.
Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As