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Two balloons have a volume of 1.5 L. One contains helium gas and the other argon gas. They are tethered together and are at the same temperature and pressure. Which balloon has the greater number of gas particles? Which balloon has the greater mass? Which balloon has the greater density?
Given a relative reactivity of 5.0:3.5:1.0 (tertiary:secondary:primary) hydrogens,calculate the expected percentage of each of the three reaction products expected in the chlorination of n-pentane?
In the titrating vinegar expirment briefly explain if the following errors would result in high or low expermental determination of the molar concentration of ch3cooh
How many mL of 4.50 M sodium hydroxide must be added to 250 mL of a 0.200 M nitrous acid solution to make a buffer with pH = 3.00?
when carbon is burned in the presence of oxygen, the carbon and oxygen combine to produce carbon dioxide. if you start with 3 grams of carbon and 8 grams of oxygen and they react completely, how many grams of carbon dioxide will be produced?
Multiple choice questions in organic chemistry - Which of the following statements are true about the processes of melting and freezing?
Radioactive isotopes often occur together in mixtures. Suppose a 190 sample contains , with a half-life of 12 days, and , with a half-life of 4.5 days. If there are initially twice as many calcium atoms as there are barium atoms, what will be the ..
calculate the micrograms (to the nearest microgram) of iodine per serving in the finished product. Show your work.
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor
How much heat is required to melt 15 grams of ice at 0C? How much heat is released when 100 grams of steam condenses at 100C? If a system of ice and water has a mass of 12 grams
calculate the mole fraction of toluene in the solution that contains 126g toluene and 94g benzene
An 11.0 gram sample of CaCl2(s) is dissolved in 125 grams of water with both substances at 25.0°C. If the final temperature of the mixture is 39.2 °C.
when 157 mg. of dipentylamine was added to 122 mg. of benzoic acid and 2 mL of water, a completely homogenous solution was formed. Draw the structure of the species present into the water.
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