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To make the concentration exactly 0.2000 M, discuss what volume of water must be added to 450.0 mL of 0.2080 M acid.
Describe the isomers of the isopentenes (C5H10), name each isomer (IUPAC) and provides the list in order of increasing the stability.
When a sample of chloroform is found to contain 98.4 g of chlorine, 11.1 g of carbon and 0.93 g of hydrogen, determine the total mass of chloroform in the second sample if a second sample o
They consider the combination of a continuous steady state catalytic reactor which is followed by distillation with recycle of un-reacted products at steady state in which the following reaction tak
A 10.0 m3 tank which is having the steam at 275°C and 15.0 bar. Until the pressure drops to 1.2 bar, the tank and its contents are cooled. Some of the steam condenses in the process.
A natural gas analyzes N2, 20.0 percent and CH4, 80.0 percent and it is burned under a boiler and most of CO2 is scrubbed out of the flue gas for the production of dry ice.
Suppose that you discovered some material from another universe that obeyed the following restrictions on quantum numbers n>0, l+1<n , ml= +1 or -1 , ms=+1/2
Calculate the volume of this gas sample when the absolute temperature is divided by four and the pressure is tripled if an isolated quantity of an ideal gas at 292.9 K has a volume of 18.77 L at a
Explain why the 4s, 4p do, 4d, and 4f orbital have the same energy in hydrogen atom but they have different energies in many electron atoms?
Find out the concentrations of dissolved F- and La3+ are in equilibrium with solid LaF3 when the sensing element of a fluoride electrode is made of lanthanum trifluoride, LaF3.
Determine the largest amount of La3+ which can be added without causing the precipitation? If 1.00 mM La3+ is added to a solution and the equilibrium pH is7.0, will solid La(OH)3 precipitate.
The activation energy for the reaction is 116 kJ/mol. Determine the numbers of times greater is the rate constant for this reaction at 250°C than it is at 200°C?
A decolorizing step is calculated to be unnecessary, and there are no solidim purities present. Should you perform a filtration to eliminate the impurities before allowing the solution to cool?
Determine the value of the rate constant at 320 K if the activation energy is 90.2 kJ/mol.At 300 K the rate constant is 1.5 x 10-5 /M·s for the reaction:
Explain why stem less funnels are required instead of long-stem funnels to filter the hot solutions by using the Fluted filter paper and also determine that what will a soluble impurity do to the m
When an arsenic (III) sulfide reacts with the oxygen to form arsenic (III) oxide and the sulfur dioxide as represented by this equation:
What changes in procedure would be required to isolate the product if the fumaric acid were more soluble than the maleic acid.
Calculate the mass percentage of acetic acid in the solution when the pH of a white vinegar solution is 2.45 and this vinegar is an aqueous solution of acetic acid with a density of 1.09g/mL.
Find out the mass percentage of ammonium base in the solution when the pH of ammonium oxide solution is 11.87 and the ammonium oxide is an aqueous solution of ammonium with a density of 1.00 g/mL.
At 37 °C the solubility of cholesterol in the 95% ethanol is 32.5 mg/mL and at 7 °C is 11.5 mg/mL. Explain how much 95% ethanol is needed to dissolve the 1 g of cholesterol at 37 °C?
At the STP consider the three 1-L flasks. Where Flask A contains CO gas, flask B contains CO2 gas, and the flask C contains CH4 gas. Identify which flask contains the largest number of molecules?
Find out the partial pressure of CO2 if a gaseous mixture having 3.6 mol of Ar and 5.0 mol of CO2 had a total pressure of 9.0 atm.
Calculate the normal boiling point in the degrees Celsius of ethyl alcohol if a solution prepared by dissolving the 26.0g of glucose C6H12O6 in the 285g of ethyl alcohol which has a boiling point o
Find out the limiting reactant, the percent yield and the theoretical yield. The reaction of 2.5 g of aluminum with 2.5 g oxygen gas formed 3.5 g of aluminum oxide.
Write down full ionic, a molecular and the net ionic equation for the reaction when an aqueous solution of lead (II) nitrate is mixed with an aqueous solution of the potassium iodide.