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A sample of an oxide of antimony (Sb) contained 19.75 g of antimony combined with 6.5 g of oxygen. What is the simplest formula for the oxide?
A 45.0 g block of aluminum initially at 28.0C absorbs 548 J of heat. What is the final temperature of the aluminum?
Starting with d-talose (you can find this in the book or online) draw the \(\beta\) -anomer of its pyranose Haworth structure.
A 10mL solution of .3M NH3 is titrated with a .1M solution of HCL. Compute the pH after the subsequent additions of the HCL solution. a) 0mL b) 10mL c) 20mL d) 30mL. Explain how to set up the chemical equation for the initial reaction when you are..
nh3 is kept in a cylinder with a movable piston at the temperature of 25 degree celcius and the pressure of 2.50 atm
Ammonia can be made by reacting calcium cyanamide (CaCN2) with water as shown: CaCN2 + 3 H2O => CaCO3 + 2 NH3. How many grams of calcium cyanamide are required to react with 417.8 g of water
A reaction that is spontaneous can be described as a releasing heat to the surroundings. b. increasing in disorder. c.proceeding in both the forward and reverse directions.
What mass of sucrose should be combined with 468 of water to make a solution with an osmotic pressure of 8.75 at 295 ? (Assume the density of the solution to be equal to the density of the solvent.)
The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in this table.
What mass of solution contains each of the following amounts of dissolved solute? 1.) 15.0g of sulfuric acid in a 25.0\% solution 2.)11.0g of acetic acid in a 5.00\% solution
Solid NaI is slowly added to the solution that is 0.010 M in Cu and 0.010 in Ag a) which compound will begin to precipitate first? b) calculate Ag when CuI just begins to precipitate? c) what precipitate of Ag remains in the solution at this point..
a solution prepared by dissolving 45.0 g ofniso4nbspin water. what current would be needed to deposit all of the nickel
Problem- A nonvolatile organic compound Z was used to make up two solutions. Solution A contains 1.00 g of Z dissolved in 100 g of water and has a vapor pressure of 754.5 mmHg at the normal boiling point of water. Calculate the molar mass of Z in ..
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