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On being heated in air, a mixture of FeO andFe2O4 picks up oxygen so as to convert completely to Fe2O3. If the observedweight gain is 5.00% of the initial weight, what must have been the composition of the initial mixture?
A current of 0.0100 A is passed through a solution of rhodium sulfate, causing reduction of the metal ion to the metal. After 3.00 h, 0.038 g of Rh has been deposited. The charge on Rh is +3. What is the formula for rhodium sulfate
The molecular formula for lactic acid is C3H6O3, and its structural formula is CH3CH(OH)COOH. Is this molecule a carbohydrate? Explain.
Volume in liters of 0.625 M manganese(II) sulfate that contains 92.4 g of solute. (Do not enter the units of your answer). Calculate to 2 decimal places and do not include units.
A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 13.0 L
kinetics of the reaction between iodide and persulfate. procedure popet 4 ml of the idoide solution and 12 ml
a volume of 80.0 ml of h2o is initially at room temperature 22.0 c. a chilled steel rod at 2.00 c is placed in the
you have a bag of n 710 special imported coffee beans that you are putting in cups to distribute to your friends. the
The k1 is on top of the right pointing arow and k2 is below the left pointing arrow and the arrows are like they are in equilibrium. The k3 is above the lone arrow in the second reaction. In the find expression part the N02 is a subscript of P
Methane and hydrogen sulfide form when 36g H2 texts with carbon disulfide. Calculate the percent yield if the actual yield of CH4 is 69.8g.
An unknown mass of each of sand, initially at 24.0, absorbs 1970 of heat. The final temperature is 62.2 degrees C. Find the mass of sand.
Consider writing all the possible structural isomers for C7H16. These would fall into which class(es) listed below. Straight chain, branched chain, stereoisomers, cyclic, geometric
What is the concentration of 50 mL of a solution of NaOH if 25 mL of HCl 0.1M are needed to reach the equivalence point during a titration
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