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Explain a certain anesthetic contains 64.9 percent C, 13.5 percent H and 21.6 percent O by mass. At 120°C and 750 mmHg, 1.00 L of the gaseous compound weighs 2.30 g. Explain what is the molecular formula of the compound?
A 347 ml sample of solution contains 5.1 g of CaCl2. Calculate the molar concentration of chloride ion in this solution
It takes 47.0 J to raise the temperature of an 9.00 g piece of unknown metal from 13.0rm ^circ C to 25.0^circ{C}. What is the specific heat for the metal?
Calculate the most probable speed of an ozone molecule in the stratosphere, where the temperature is 270 K
1. caculate the volume of the acid soultion needed to completly neutralize the base in the flask 2. Caculate the pH for (a) the inital base solution in the flask; (b) the point at which 20mL of the acid has been added; (c) the equivalence point, a..
Using a table of thermodynamic data calculate, the Delta H degrees for the following reaction (at 25 degrees C).
A 10g sample of acetic acid HC2H3O2. was burned in a bomb calorimeter in an excess of oxygen. The temperature of the calorimeter rose from 25 C to 35.84C. If the heat capacity of the calorimeter and its contents is 13.43KJ/C, what is the enthalpy ..
Tungsten is usually produced by the reduction of WO3 with hydrojen as shown by the equation; WO3(s) + 3 H2(g) ? W (s) + 3 H2O (g) The enthalpy for the reaction,(delta H rxn ) ?H°rxn is + 114.5 kj. The entropy for the reaction (Delta S rxn) ?S°rxn i..
Draw the first two wave functions
Determine the theoretical and percent yield of your product. In the IR spectrum of phenacetin which peaks are due to the following vibrations: (list the wavenumbers)
nbspif an amount of heat 6.824 kj of is added to a coffee cup calorimeter containing 54.55 grams ofnbspwater in
A fuel with the potential to supplement if not replace gasoline, formed from the fermentation of surgars by the action of yeasy is called
(1) indicates bond types. Give the range for (a) a nonpolar covalent bond (b) a polar covalent bond (c) an ionic bond. (2) name and describe the method for lattice enthalpy measurement
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