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To get a larger effect that one is measuring and hence lower the relative error, a larger sample could be used. Explain what is the disadvantage of this approach in this particular experiment?
a student carefully did a titration to determine the mass of acetic acid in the vinegar sample. after 50 ml of naoh was
calculate the final temperature when a 11.3 gram sample of ice at 0oc is placed into a styrofoam cup containing 119
Prepare 500.0 mL of a pH 4.00 buffer with sodium nitrate (as a 0.50 M solution) and hydrochloric acid (as a 0.10M solution) such that the total nitrite concentration
Calculate the change in molar enthalpy and molar internal energy when carbon dioxide is heated from 15 degrees Celsius to 37 degrees Celsius
what is the order of increasing steric hindrance within these reactions and what is the reason for that order in terms of calculated energies, distance, and structures.
a 265- flask contains pure helium at a pressure of 757 . a second flask with a volume of 485 contains pure argon at a
The first-order rate constant for the decomposition of a certain hormone in water at 25oC is 0.125 yr-1. How long will it take for the concentration of the solution to drop from 0.0100 M to 0.0075 M at this temperature
When 0.750 g sample of an unknown substance is dissolved in 20.0 g of benzene, the freezing point of the solution is 4.53 °C. What is the molar mass of the substance
Calculate the amount of heat transferred when 28.0 grams of CH3OH(g) is decomposed by this reaction at constant pressure.
At 46 oC a sample of ammonia gas exerts a pressure of 3.19 atm. What is the pressure when the volume of the gas is reduced to one-half of the original value at the same temperature
In the reaction of aluminum metal and oxygen gas to make aluminum oxide, how many moles of aluminum will react with 0.80 grams O2?
Breaking the oxygen-oxygen bond in hydrogen peroxide requires 210 kJ/mol. What is the longest wavelength of light that can cause this bond to be broken
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