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Assign oxidation numbers to all the elementals in each of the following: a)PO3^2- b)NH4^+ c)Fe(OH)2 d)HNO3 e)Cr2O7^2-
basketball with a volume of 3.50 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 305 K during the day?
It takes 50.0J to raise the temperature of an 12.0g piece of unknown metal from 13.0 C to 24.0 C. What is the specific heat for the metal?
A 0.456 gram sample of an unknown monoprotic acid (lets call it HZ) was dissolved in some water . Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH.
At a particular temp and pressure it takes 4.55 min for a 1.5 L sample of He to effuse through a porous membrane. how long would it take for 1.5 L of F2 to effuse under the same conditions
Which one of the following compounds will be most soluble in water?
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 23.75 mL of 0.0502 M NaOH but overshoot the end point
Determine how many liters 8.93 g of carbon dioxide gas would occupy at 150°C and 1.00 atm
what is the total volume of air in a room which contains a total of 75 kG of oxygen?
If the initial concentration of A=2.5 mol/L, the initial [B]=1.4 mol/L, and the rate =0.29 moles of product per liter per minute (M/min). Calculate the rate constant K to 2 decimal places.
Cannot be determined from the information provided. 9. Starting with the initial concentrations provided in the question above, what will be the equilibrium concentration of CO2? a) 1.6 M b) 1.8 M c) 2.0 M d) 2.2 M 10. What is KC for this process ..
When 28 mL of a 430 mL stock solution containing 2.3 M AlCl3 is diluted to 114 mL, how many moles of Al3+ are in the new solution?
Calculate the density of hydrogen bromide gas (in g/L) at 733 mm Hg and 47 degrees Celsius
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