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1. What is the mass in milligrams of H2O in 9.6mmol of Fe(NH4)2(SO4)2. 6H2O
2. Describe the preparation of 125 mL of 5.30 M HNO3 from a concentrated solution that has a specific gravity 1.42 and is 70% (w/w) HNO3.
Copper (II) hydroxide from Copper (II) nitrate. Confirm that an acid base reaction occurred stoichiometrically identify the limiting the reactant and the excess reactant.
What is the pH halfway to the equivalence point for the titration of 0.20 M CH3NH2 with 0.20 M HCl? (Kb of CH3NH2 = 4.4 x 10-4)
How many kilograms of acetic acid needs to dissolve 94 grams of potassium chloride if the freezing point changed 19.6 degrees celcius?
If 555 g of NaOH is dissolved to a final total volume of 40.0 L, what is the molarity of the solution?
What is the metal ion in a metal nitrate solution M(NO3)3(aq) if 90.52g of metal was recovered from a 4.00 hr electrolysis at a constant current of 35.0A
A mixture of cyclopropane gas and oxygen is used as an anesthetic. Cyclopropane contains 85.7% C and 14.3% H by mass. At 50.0C and .984 atm pressure, 1.56 g cyclopropane has a volume of 1.00 L. What is the molecular formula of cyclopropane?
If a Boron-10 nucleus absorbs a proton, the radioactive nuclide that is produced may undergo alpha decay. What nuclide is produced in the decay process? Write the balanced radiochemical equations for both processes.
In a particular sample, the C13 NMR spectrum showed a signal 25ppm and another signal at 72.3 ppm. if the reference frequency for C13 on the instrument were 25.1 MHz what is the difference between the frequency of each signal and the reference fre..
If the concentration of NO2 is .00556 M at the beginning of the reaction, what will [No2] be after 300 secondd? NO2 (g) arrow NO (g) + O (g)
What food contains an antagonist to biotin such that the biotin will be bound in the gut and not absorbed?
Each of the following solutions is separated from a solution containing pure water with a semipermeable membrane. Assuming they all have the same temperature, rank the solutions from the highest to the lowest osmotic pressure
The gas mixture contains 2.5% sulfur dioxide (SO2) by weight. How many pounds of SO2 are released in one week? (Sig figs matter)
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