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When 4.00 moles of lithium react with excess oxygen, the theoretical yield of lithium oxide is 59.764 g. The reaction is performed, and 16.99 grams of lithium oxide are obtained. Calculate the percent yield of this reaction.
A sample of diatomic gas has a density of 0.002061 g/mL at 1.8 atm pressure and 25.0 °C. Identify the gas.
Evaluate the number-average molar mass Mn of the polyamide, and also estimate its weight-average molar mass Mw by assuming that it has the most probable distribution of molar mass.
State the electron configurations for P and Cl using both the spdf notation as well as orbital box diagrams. Explain the relationship between each atom's electron configuration as well as its position in the periodic table
All the offspring of a cross between a normal winged fly and an miniature winged fly have normal wings. What is the expected phenotypic ratio of a cross between two miniature winged flies?
What is the pH at the point during a titration when 34 mL of 0.200 M HCl has been added to 33 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3.
Give the formula of a compound that contains a secondary hydrogen and Give the formula of a compound that is a secondary alcohol
Which value is closest to the pOH of a 0.30M solution of the weak base methylamine (CH_3_NH_2_). The Ka for the acid form of methylamine (CH_3_NH_3_+) is 2.27E-11.
Approximate the heat of reaction for the following equation using thermodynamic tables: CuO (s) + AgNO3 (aq) Cu(NO3)2 (aq) + Ag2O (s)
Heating potassium chlorate KClO3, yields oxygen gas and potassium chloride. What volume, in liters, of oxygen at 23 degrees C and 760 torr is produced by the decomposition of 4.42 g potassium chlorate
100 moles of water at 70 degrees celsius is brought into thermal contact with 100 moles of a monatomic gas at 20 degrees celsius, and the two substances exchange heat until they reach the same temperature. Assuming that no heat is lost to the surr..
The flask revealed here contains 10.0mL of HCL as well as a few drops of phenolphthalein indicator. The burette contains 0.120 M NaOH.
Critical constants of a gas with van der Waals parameters, Estimate the critical constants of a gas with van der Waals parameters
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