Determining the same mass of solute
Mass of solvent=134.4 g/mol
The same mass of solute is dissolved in 9.82 g of t-butanol instead of cyclohexane. What is the expected freezing pt. change of this solution?
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Write a balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (C6H12O6) and oxygen gas.
Question: If one starts with pure NO2(g) at a pressure of 0.500 atm, the total pressure inside the reaction vessel when 2NO2(g) ----> 2NO(g) + O2(g) reaches equilibrium is 0.674 atm. Calculate the equilibrium partial pressure of NO2.
Initial temp of HCL solution: 22 degree c Mass of magnesium: 0.6 g Moles of mag: 0.025 highest temp of mixture: 63 degree c Delta T: 41 degree c Heat gained by solution
Decomposition of KClO3 is sometimes used to prepare small amounts of O2 in the laboratory: 2KClO3(s) 2 KCl(s) + 3 O2(g). How many grams of O2 can be prepared from 4.50 g of KClO3?
For calcium work function equals 4.34*10^-19j. What is the minimum frequency of light needed to remove an electron via the photoelectric effect from ca
Determine the theoretical yield of H2O and the percent yield for the reaction.
A room contains 3.9 x 10^4 grams of argon. If air has a density of 1.7 g/L and is 0.255% argon by mass, what is the size of the room?
Mixing cyclohexanol with phosphoric acid is an exothermic process, whereas the production of cyclohexene is endothermic. Construct an energy diagram showing the course of this reaction.
Why do extremely dilute charged particles in an electric field move slower in an aqueous solution that contains other ions at much higher concentration in colution compare to the same particles in the same field in a non-aqueous
What is the density of a gas in g/L that has a molecular weight of 144, if the temperature and pressure is 25 degree C and 750 mmHg?
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