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If a gas of unknown identity diffuses at a rate of 83.3mL/s. In similar conditions a second gas, with a molar mass of 44.0 diffuses at a rate of 102 mL/s. Compute the molar mass of the first gas.
Bessemer converter is used for the manufacture of : Which is the formula of Haematite
Phosphorous pentachloride forms from phosphorus trichloride and chlorine: PCl3(g)+Cl2(g)->PCl5(g) given: ?Ssys=-170.2J/K, ?Ssurr=295.0J/K, ?Stotal=124.8J/K, reaction is spontaneous under standard-state conditions at 25
A sample of sodium reacts completely with 0.568kg of chlorine, forming 936g of sodium chloride. What mass of sodium reacted.
A 25.00mL sample of KNO3 solution was diluted to 1.000 x 10^3 mL. The concentration of the final solution is 0.00383 M. Calculate the concentration of the original solution in M.
Given that one mole of NaOH reacts exactly with one mole of potassium hydrogen phthalate, write the chemical reaction and calculate the number of milliliters of 0.100 M NaOH required to neutralize the 0.500 gram sample of potassium hydrogen phthal..
Determine the partial pressure. Calculate the total pressure and volume in liters at STP of Nitrogen, Helium and Neon mixture.
What mass of helium was placed in balloon. What altitude does the balloon reach
Calculate the pH after 37.9 mL of NaOH has beed added. pH= ______. At what volume (in mL) of NaOH added does the pH of the resulting solution equal 7.00? Include the units of mL in your answer.
The osmotic pressure of an aqueous solution at 300 K is 120 kPa. Calculate the freezing point of the solution.
How would you distinguish experimentally between an amphourous, a crystalline and a crosslinked polymer
Crystalline silicon has a cubic structure. The unit cell edge length is 543pm. The density of the solid is 2.33g/cm3. Calculate the number of Si atoms in one unit cell.
Write the complete mechanism for the formation of Nylon-6,10 using sebacoyl chloride as one of the starting materials. You only have to show the formation of one amide bond
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