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10g of H2O2 impure sample when reacted with KI (solution) produced 0.5g iodine.What is percentage purity of H2O2?(AI=127,AK=39)
What is the product of Furfural + 3-Pentanone and NaOH? (there are 2 possible combinations.)Also how could you alter the reaction conditions to obtain primarily one product or the other
In the Balmer-Rydberg equation, what value of is used to determine the wavelengths of the Balmer series?
What volume, in L, of hydrogen gas at standard temperature and pressure (STP) is produced from reacting 0.333 L of 0.807 M hydrochloric acid with aluminum metal? (1 mol of gas @ STP = 22.4 L).
What is the absolute error in mL associated with a 25 mL burette, and what is the relative error % when a 3.25 mL volume is measured with the 25 mL burette
If pH = 6.4, calculate the molar concentration of H^+ (aq) in the solution. If pH = 6.4, calculate the molar concentration of OH^-(aq) in the solution.
Include on the graph the boiling points of pure benzene and pure methanol and the boiling point of the azeotrope. Describe the behavior for a mixture that is initially rich in Benene (90%) and then for a mixture that is initially rich in methanol ..
Calculate delta H^degree (in kilojoules per mole) for benzene,C6H6 , from the following data: 2C6H6(l)+15O2(g)---->12CO2(g)+6H2O(l), delta H^degree= -6534 kJ
Which of the following pairs of substances has the higher chemical potential (?) under the specified conditions? They may be equal. 1.) H2O (s) at -1 degrees Celsius and 1 bar, or H2O (s) at 1 degrees Celsius and 1 bar 2.) H2O (g) at 100 degrees C..
A sample containing 1.5 moles of neon gas has a volume of 8.00 L. What is the new volume of the gas in liters when the following changes occur in the quantity of the gas at constant pressure and temperature.
a Balanced reaction equation must have the same number of atoms of each element on both sides of the equation. to verify that the equation is balanced, count the otoms of each element on both sides of the reaction
When X amount of moles of glucose are dissolved in 5.60 x 101 mL of solution, the Molarity is 3.47 M. What is X
Determine the change in internal energy of the gas express your Answer in units of kJ and operates for nine minutes to heat the gas in a cylinder
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