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Using your knowledge of metric units, English units, and the information on the back inside cover, write down the conversion factors needed to convert
How many metric tons (t) of oxygen are combined in a sample of pitchblende that contains 2.5 t of uranium? Analysis shows that 84.2 g of pitchblende contains
When ammonium chloride, NH4Cl, dissolves in water, the temperature of the solution is found to be less than that of the original water sample.
.1500g of an unknown sample was passed through a column of Amberlite-IR-200(+) resin and titrated with .2050M NaOH. If 9.75mL of titrant was required to reach phenolphthlein endpoint,
1 cfcs were used in hair sprays refrigerators air conditioners and plastic foams.nbsp which properties of cfcs made
Compute the density of combustion gases with the subsequent composition 75% N2, 5.5% O2, 11%CO2, 8.4% H2O, and 0.1% CO. The temp is 350 degrees F as well as pressure is 755 mmHg.
you have 19.16 g of CH4 and 22.13 g of O2. How many grams of CO2 would be generated, CH4 + 2 O2 --> CO2 +2 H2O
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively
Urea (NH2CONH2) an important nitrogen fertilizer is produced industrially by the reaction given that ?G initial = -13.6KJ, calculate ?G at 298K for the following sets of conditions
The point in the titration when buffering is least efficient occurs at the stoichiometric point, or equivalence point, in the reaction. This point is often called a point of inflection because there is a shift in the curvature from convex to conca..
In a standardization titration involving hydrochloric acid and sodium carbonate, a student recoirded the following results for the volume of hydrochloric acid used against 10.00mL of the sodium carbonate solution : 15.60; 14.50; 14.70 aqnd 14.20. ..
A buffer solution is prepared by dissolving 1.50 g each of benzoic acid, C6H5CO2H, and Sodium Benzoate, NaC6H5CO2, in a 150.00 ml of solution. The Ka for benzoic acid = 6.3E-5.
One kind of electromagnetic radiation has a frequency of 107.1 MHz another kind has a wavelength of 2.12 * 10-10 m as well as yet another type of electromagnetic radiation has photons with energy equal to 3.97 * 10-19 J/photon. Identify each kind ..
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