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The vapor pressure of water at 20°C is 17.5 mmHg. What is the vapor pressure of water over a solution prepared from 2.00 × 102 g of sucrose (C12H22O11, molar mass = 342 g/mol) and 3.50 × 102 g water? 1. 0.51 mmHg 2. 16.0 mmHg 3. 17.0 mmHg 4. 18.0 mmHg 5. 19.4 mmHg
Show your work in finding the partial pressure of the nitrogen gas, PN2. 2) Show your work in finding the mass of the nitrogen collected
How can we explain the ability of an electron to cross through a node, such as the nucleus, to occupy the region within an entire orbital?
The solubility of oxygen in water is 5.00M when the partial pressure of oxygen is 1.00 atm. Calculate the solubility of oxygen in water in contact with air
If 4.00 g of the unknown compound contained 0.133 mol of and 0.267 mol of H , how many moles of oxygen, O , were in the sample?
Rank these elements according to first ionization energy (highest to lowest) : Ne, F, O, N, C, B, Be, Li. HINT: There is a general trend for ionization energy within a period of the periodic table
If the final temperature of the system is 31.1°C, what is the specific heat capacity of the alloy? (c of water is 4.184 J/g×K)
Electron Donor and Receptor in Metal Complexes, In the first step of the catalytic cycle, the alkene bonds to palladium to make a new metal complex The alkene is now a ligand because the pi-bond of the alkene is donating some of its electrons to p..
Calculate the pH of the solution when 20.00 mL of 0.10 M CH3CO2H (Ka= 1.76 x 10^-5) has been titrated
A mineral containing iron(II) sulfide but no other sulfides is treated with excess hydrochloric acid to produce hydrogen sulfide. If a 3.15 g sample of the mineral yields 448 mL of hydrogen sulfide gas
Assuming that the specific heat capacity of the solution is the same as for water, calculate the heat transfer from system to surroundings, in kilojoules
A reaction is preformed in aqueous solution, and the temperature of the solution increases by 15.78 degrees celcius. Is the reaction exothermic or endothermic?
A mixture of Ar and N2 gases has a density of 1.592 g/L at STP. What is the mole fraction of each gas?
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