Find out the molecular weight of the compound
Pure benzene freezes at 5.48oC and its Kf value is 5.12oC/m. Find out the molecular weight of the compound? The freezing point of a solution of 5.884 g of an unknown non-electrolyte dissolved in 45.12 g of benzene is1.51oC.
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In the preliminary tests 3 HNO3is added to the precipitate of the silver group. Discuss what ion is probably present if a yellow precipitate remains?
Explain the specific tests that would require to be carried out on an unknown sample suspected of having the carbonate, sulfate, and iodide:
Determine quatratic function based on stopping distance for 55 mph and 65 mph and fact that at 0 mph stopping distance is 0 feet.
The electrical conductivities of the following 0.100 M solutions were calculated in an apparatus that contained a light bulb as the indicator of conductivity. When the rank the solutions in order of decreasing the intensity of the light
Determine the numbers of grams of iron can be plated out at the cathode if a solution of FeSO4 is electrolyzed by a current of 1.00amp for the 30.0 minutes?
How can compare the wavelengths of an electron which is having the mass = 9.11*10^-31 kg and a proton which is having mass = 1.67*10^-27 kg, each have (a) a speed of 3.4*10^6 m/s ; (b) a kinetic energy of 2.7*10^-15 J.
The strontium-90 deposited in the hot desert will undergo the radioactive decay more rapidly because it will be exposed to much higher average temperature. Explain is this a reasonable suggestion?
A 5 in. by 7 in. photograph is surrounded by the frame of uniform width. Area of frame equals area of photograph. Determine width of frame.
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