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Calculate the theoretical yield for the reaction if .80g of succinic anhydride and excess aniline was used. Whis is the percent yield if a student isolates 0.9g of succinimide?
Sulfur, S8, combines with oxygen at elevated temperatures to form sulfur dioxide. If 192 oxygen molecules are used up in this reaction, how many sulfur molecules reacted
A helium-filled weather balloon has a volume of 714 L at 23 oC and 759 mmHg. It is released and rises to an altitude of 4.80 km, where the pressure is 495 mm Hg and the temperature is -9oC. what is the volume of the balloon at this altitude.
The relationship between Kp and Kc for gaseous reactions depends on the change in the total moles of gas between reactants and products. For each of the equations given at the right, select the correct relationship between Kp and Kc from the list ..
How do you calculate the pH when 0.2 moles of NaOH have been added to 1 mole of acetic acid during a titration. The pKa of acetic acid is 4.76.
How many grams of carbon dioxide (CO2) can form when a mixture of 4.95 g of ethylene (C2H4) and 3.25 g of oxygen is ignited. Assume complete combustion to CO2 and H2O.
Derive the general expression for the work per kilomole of a van der waals gas in expanding reversibly and at a constant temperature
What is the wavelength (in nm) of a photon emitted during transition
How high must a waterfall be for the water temperature to be 1.0 K warmer at the bottom than at the top?
The mass of a cube of iron is 284 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
Beakers 1 through 4 contain 2.3, 1.91, 5.985, and 0.52 g of dry potassium nitrate respectively. How many moles of potassium nitrate were recovered after the water evaporated
Consider the titration of 41.2ml of 0.270M HF with 0.180M NaOH. Calculate the ph at each of the following points. how many milliliters of base are required to reach the equivalence point?
A hazardous waste incinerator has been burning a certain mass of dichlorobenzene (C6H4Cl2) per hour, and the HCl produced was neutralized with soda ash (Na2CO3).
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