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Explain how many oxygen atoms are present in 1.79 g of copper (II) sulfate pentahydrate? Molar mass = 249.70 g/mol.
a) 0 atoms
b) 3.89 x 10^22 atoms
c) 4.32 x 10 ^ 21 atoms
d) 1.73 x 10^ 22 atoms
Sucrose (C12H22O11) can be mixed with potassium nitrate to form an amateur rocket propellant called rocket candy, which, despite its name, is at least mildly toxic. The properly balanced mixture reacts to form K2CO3, N2, H2O and CO2.
Ozonolysis of A followed by dimethyl sulfide reduction produces a single optically active compound C, C5H8O2. Reduction of C with ethereal LiAlH4 affords optically active compound D (C5H12O2) of the (S)-configuration. The 13C NMR spectrum of D is ..
Tires in a bike have been filled to a pressure of 53.0 psi at 19.0 deg C. after riding around for a while, the volume of the tire increased by 2% & the temp was now 32 deg C. whats the new pressure in psi
Classify the following pair of compounds as the same compound, enantiomers, diastereomers, constitutional isomers, or not isomeric. Also, select the correct IUPAC name
Explain why the element bromine prefers to have its two atoms form covalent bonds rather than ionic bonds
calculate the total volume of gas at 124c and 758mmhg produced by the complete decomposition of 1.45 kg of ammonium
What is the molarity of the carbonate ion in sodium carbonate, Na2CO3, prepared by dissolving 3.5 g of sodium carbonate in enough water to form 0.800 L of solution?
How many ppm Pb2 ion are contained in this solution? How many ppm of nitrate ion are contained in the same solution?
If you're preferred pH is 7.55 then compute how much HA wants to be added to 50.00mL of A- to create this buffer. Provide your answer in mLs to the hundredth decimal point.
A 200.0-mL sample of the same tap water required 47.86 mL of the standard EDTA for titration at pH 10 using calmagite indicator. Calculate the molar concentration of Mg2+ in the tap water.
What volume of hydrogen gas is produced when 68.4 g of iron reacts completely according to the following reaction at 25 C and 1 atm iron (s) + hydrochloric acid (aq)--------- iron(II) chloride (aq) + hydrogen (g)
What is the major purpose of doing distillations in organic chemistry. What is the secondary purpose
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