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Does magnesium carbonate (MgCO3) incorporate ionic bonding, covalent bonding, or both? Explain,
When the flask is allowed to cool the vapor condenses and aire again refulls the flask. Re weighing the flask and figure out the the wight of the unknown vapor which filled the flask during the boiling. Explain why it is not necessary to know the w..
What is the pH of a hypobromous acid/sodium hypobromite buffer in which the concentration of the weak acid component is 0.068 M and the concentration of the conjugate base is 0.074 M? Hypobromous acid [HOBr] = Ka=2.50e-9.
What mass of potassium carbonate K2CO3, must be weighed out to prepare 125.0mL of a 0.0500M solution of salt?
Propane burns in oxygen to produce carbon dioxide and water. c3h8 +5o2 yeilds 3co2 +4h2o Calculate the math of co2 that can be produced if reaction of 44g of propane and suficient oxygen has a 60% yeild.
Describe the preparation of 12 mL of a 0.050 M solution of each of the halogens, using the reactions in the preceding question. Available to you are solid Ca(OCl)2
If a 2.1 L reaction vessel initially contains 725 torr of cyclopropane at 485 degrees C , how long will it take for the partial pressure of cylclopropane to drop to below 102 torr .
Using the table of reductions values explain why silver ion is the reactant and why silver metal is a sacrificial anode that protects mercury from oxidizing into mercury(I) or mercury(II) ion.
what type of solid phase would you use and what type of solvent would you select as an eluting solvent, to detect the biphenyl impurity?
A 9.00 mL sample of unknown concentration of phosphoric acid, H3PO4 , is titrated with 14.34 mL of 0.1110M Ca(OH)2, what is the concentration of H3PO4?
The following half-reactions occur in the mercury battery used in calculators. If E°cell = 1.357 V, calculate the equilibrium constant for the cell reaction at 25°C.
The data below come from a process with two observable quality characteristics. The data are the means of each characteristic, based on a sample size of n = 25. The nominal values and covariance matrix are
What mass of Fe would be contained in a 80.0 g sample of magnetite ore that is 76.0% Fe3O4. Assume no other form of Fe is present
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