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Explain how to prepare 500.0 mL of an 8.00% v/v methyl alcohol solution. * measure out 40.0 mL of methyl alcohol * measure out 4.0 mL of methyl alcohol * measure out 4.0 mL of methyl alcohol and add water until 500 mL is reached * measure out 40.0 mL of methyl alcohol and add water until 500 mL is reached
A sample of nitrogen of mass 3.12 g at 23 C is allowed to expand reversibly and adiabatically from 400 cm^3 to 2 dm^3
How many grams of FeSO4 are there in 206 grams of an aqueous solution that is 14.0 % by weight FeSO4.
Which of the following solutions has the highest pH at 25?C?
Equilibrium constant from standard potential data, Calculate the equilibrium constants of the following reactions at 25°C from standard potential data
A 270- flask contains pure helium at a pressure of 755 . A second flask with a volume of 485 contains pure argon at a pressure of 727 torr.
If 3.25 L of ammonia react with an excess of oxygen to form nitrogen monoxide and water steam, what volume of water steam will be produced? The pressure and temperature stay constant. A. 2.04 L B. 2.17 L C. 3.33 L D. 4.14 L E. 4.88 L e is righ one
The Ksp of CaSO4 is 4.93× 10-5. Calculate the solubility (in g/L) of CaSO4(s) in 0.300 M Na2SO4(aq) at 25 °C.
a solution is prepared by adding 40.3 g of Mg(NO3)2 to 127 g of water. Calculate the mole fraction and molality of magnesium nitrate in this solution
If you didn't have a computer or data system available, how would you measure the area of the peak. After all, someone's DUI may hinge on this measurement, and you may have to defend your calculation in court
An optimization from a particular starting structure of a compound C5H10O2 leads to an energy of 25.12 KJ/mol.
Present-day plant life has a carbon-14 decay rate of 16 disintegrations per minute (dpm) per gram of carbon. If a contemporary wooden chair were somehow preserved for the next 3,900 years, what 14C decay rate should be expected from the wood used ..
An unidentified organic compound X, containing C,H, and O was subjected to combustion analysis. When 228.4 mg of pure X was burned 627.4 mg of CO2 and 171.2 mg of H2O were obtained.
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