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An aqueous solution of a compound with a very high molar mass was prepared in a concentration of 29.7 g·L-1 at 25 °C. Its osmotic pressure was 0.184 ·102 Pa. Calculate the molar mass of the compound
What was the initial concentration of COCl2?
What is the theoretical slope at 30°C What is , the electromotive efficiency to three significant figures. What is the pH of an unknown that gives a reading of 46.7 mV with this electrode at 30°C
A sample of pure NO2 is heated to 338 degrees C at which temperature it partially dissociates according to the equation
Estimate how many barrels of fluid this tank could hold. Clearly state any assumption you must make to determine this and explain how you arrived at your assumption
how would each of the following change the rate of the reaction shown here? 2NO(g) + 2H2(g) > N2(g) + 2H2O(g)? a)adding NO(g). b)lowering the temperature. c)removing some H2(g) d)adding a catalyst
The mixture of hot iron and aluminium is dropped into a beaker containing 100 g of water at 15 oC. What is the final temperature of the liquid water
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 22.5 cm higher than the level in the arm open to the atmosphere andthe atmospher..
Can someone help me locate the tetrahedral stereocenters and how many sterioisomers are possible for the following structures please
What quantity of useful work can be obtained when Mg is added directly to the beaker of HCl. How can you harness this reaction to do useful work
What element within the reactants is oxidized in the following equation, and what element is reduced. I2 + 2 Br - ? 2 I- + Br2
An equilibrium mixture of this reaction(NH4HS(s)?NH3(g)+H2S(g)) at a certain temperature was found to have [H2S]= 0.350M and [NH3]= 0.276M .What is the value of the equilibrium constant (Kc) at this temperature.
Calculate the weight percent composition of the mixture (hexane, heptanes, hexanol, and toluene). b. Calculate the mole percent composition of the mixture.
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