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What is the proper positioning of the thermometer bulb in a distillation set-up? Why is this position important? (In other words, what will be the effect on the observed temperature reading if the bulb is too high? And too low?)
to determine the partial pressure and the total pressure using daltons law of partial pressures.a mixture of gases
A carbon-hydrogen-oxygen containing compound yields 1.029 g CO2 and 0.198 g H2O in a combustion analysis( note that this means O2 was added the overall reaction) what is the empirical formula? if the Molar mass is 138.16 what is the molecular form..
For 2.25 moles of an ideal gas, Pext=P=200x10^3 Pa. The temperature is changed from 122 C to 28.5C and Cv=3R/2. Calculate the q, w, delta U and delta H for an isochloric process.
what does it mean to manipulate the solubility of insoluble organic compounds by salt formation
At 0°C a 1.00 L flask contains 6.90 10-2 mol N2, 4.40 102 mg O2, and NO at a concentration of 9.00 1018 molecules/cm3. What is the partial pressure of each gas, and what is the total pressure in the flask?
Determine the osmotic pressure (in Torr) for a 50 mL solution containing 30.22 mg of protein with the molar mass
a) decreasing the volume of a gas b) melting a solid c) chemical reactions that increase the number of moles of gas d) forming mixtures from pure substances e)increasing the temperature of a gas
What is the [H3O+] in a solution that has a pOH of 2.29? Use E notation and 3 significant figures. Is the solution 1.95X10^12? show me how you got it as well
Determine the exact formula of the compound. When 9.64x10-4 moles of this complex is dissolved into 425.0 mL of the water, you find that 19.22 mL of 0.1000 M HCl is needed to reach a titration endpoint
Why does it take significantly stronger magnetic and electric field strengths to move the beam of alpha particles compared with the beam of electrons (beta particles)
Draw three non-equivalent Lewis structures for the nitrous N2O molecule. Show all non-zero formal charges. Which structure(s) is (are) the most important
determine the amount of heat (in kJ) given off when 1.42 * 10^4 g of NO2 is produced according to the following equation : 2 No(g) + o2(g) --> 2NO2(g) H = -114.6kj
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