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Suppose that you completely dissolved a rounded tablespoon (1.00cm^3) of table salt in 50.0 mL of deionized water in a graduated cylinder. In another graduated cylinder with 50.0 mL of deionized water, you slid in a 1.00 cm^3 piece of aluminum metal. Would you expect the water level to rise the same amount in both cylinders? Explain.
Would the density of the salt water be greater or less than the same volume of deionized water? Explain.
The rock in a particular iron ore deposit contains 78% Fe2O3 by mass. How many kilograms of the rock must a mining company process to obtain 1.0 × 103 kg.
Imagine that a chemist has cyclohexanone, triphenylphosphine, butyllithium, and 2-bromobutane. Draw the organic product resulting
For 500 mL of phosphate buffer with 0.5 M of H3PO4 and 0.3 M NaH2PO4 calculate acidic and basic buffer capacity. How much of strong acid should be added to shift buffer pH one unit down, and how much of the strong base is needed
Compute the concentration of [HPO4]2- and [H2PO4]- at pH 5.60 in a solution containing one mol of phosphate per liter (pKas for phosphate: 2.14, 6.86, 12.4)
A solid substance has a density of 8.7g/cm^3. How many pounds will this substance weigh if you have a block of the substance with a volume of 215.0 cubic feet
what is the concentration of hydrogen ions in a solution containing 0.321 m hocn cyanic acid and 0.223 m naocn sodium
Mass spectrometry determined the molecular mass to be 166 g/mol. Finally, a 0.1680 g sample was titrated to the end point with 16.18 mL of 0.1250 M NaOH. What is the molecular formula for the acid. Is the acid mono-, di-, or triprotic.
the molar heat of combustion of methanol, CH3OH, is -757kJ/mol. If 2g of methanol is placed in bomb calorimeter with heat capacity of 6.5 kJ/c, what is the temperature rise when the sample is combusted?
Why should a FNP be concerned about understanding the treatment guidelines for Acute Bacterial Sinusitis? What is the financial and personal consequences of the condition?
A student titrated a sample containing 105 ml of 0.28M NaOH with 0.74 M HCL. Explain what is the pH of the solution after 23 ml of the hydrochloric acid has been added
Measured properties are characterized by their accuracy and their precision. When using measured values in calculations, it is most important to note that precision can neither be gained nor lost. The rules for significant figures usually obey thi..
A sample of KCIO3 weighing 4.55g is strongly heated. All of the oxygen gas given off is collected over water in a flask. The atmospheric pressure is 29.06inches of mercury. The temperature is 23 degrees C. The gas constant is 0.0821 (L)(atm)(K)(mol)...
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