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1.) If the theoretical yield for a given reaction is 198.6 g and the actual yield is 165.3 g what is the percent yield for the reaction?
2.) A sample of a gas has a volume of 5.33 L at a temp. of 112 Celsius, determine the temp (in kelvin) at which it will have a volume of 7.32 L?
3.) A sample of argon has a volume of 22.5 L at a temperature of 33.8 Celsius and a pressure of 888 mmHg, if the pressure is to change to 777 mmHg and the temp is changed to 45.6 Celsius what will be the new volume?
Propose a mechanism involving a hydride shift or an alkyl shift for this solvolysis reaction. All compounds involved in each stage of the mechanism must be enclosed in a box, and each box must be connected to the next one with a straight arrow.
What about formation of a monobrominated alkane -- from an alkene. What sort of addition reaction (see the list of possible reagents in section 4.6 (12.6) does give a monoborminated alkane, when reacting with an alkene.
A drop of NaOH titrant adheres to the side of the buret between the initial and final readings for the titration.As a result of the `clean glass`error, will the molar concentration of the NaOH solution be reported as too high or too low
Calculate the energy of an ultraviolet photon of wavelength 106nm and that of an infrared photon with a wavelength
Which of these given nutrients is likely to limit production if the light supply is adequate and there is no nitrogen fixation?
Calculate the vapor pressure of the solver over the solution at 25 degrees C. The vapor pressire of pure water at 25 degrees C is 23.8 mm Hg
Yeast is used as a leavening agent in bread making. The yeast metabolizes with the natural carbohydrates in the flour, converting them to CO2 and ethyl alcohol and it is the CO2 gas that raises the bread.
If 125 grams of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous magnesium sulfate will remain
Assume constant temperature and the reaction goes to completion, producing as much nitrogen dioxide (NO2) as possible according to the following equation. What is the total pressure, in atm, in the system after the reaction?
Describe the valence bond (VB) approach to chemical bonding and the molecular orbital (MO) theory. Demonstrate hybridization of atomic orbitals for VB & MO.
when 15.12 ml of 0.1194 M NaOH is added to 25 ml of 0.1264 M HX(an unnknown weak acid),the resulting pH is 5.9 . what is the ka of the unknown acid
Problem- Enough of a monoprotic acid is dissolved in water to produce a 0.0123 M solution. The pH of the resulting solution is 2.58. Calculate the Ka for the acid
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