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looking down from C2-C3 and starting at lowest energy conformer, draw all conformers for all the following molecules and rank the on the energy diagram.
2,2,3 trimethylbutane
Which of the following is false? A. Molecules with strong intermolecular forces have higher surface tension. B. Molecules with strong intermolecular forces have higher viscosities.
Explain how the carbonate system in natural waters provides buffering capacity
If a 1000 kilogram sample of rock is 0.021% gold by mass. How much zinc is needed to react with the gold extracted from the rock?
A compound of bromine and fluorine is used to make UF6, which is an important chemical in processing and reprocessing of nuclear fuel. The compound contains 58.37% by mass of bromine. Determine its empirical formula.
What is the percent by mass of sulfur trioxide (SO3) if oleum is expressed as 3H2SO4 . 5SO3?
How much heat in kilojoules is needed to bring 1.30 kg of water from 33.7 to 97.1 °C (comparable to making four cups of coffee)?
A student followed the procedure of this experiment to determine the Caloric content of a Planter's cocktail peanut. The peanut studied had a mass of 0.609 g before combustion and 0.053 g after combustion
An 18-karat gold necklace is 75% gold by mass, 16% silver, and 9.0% copper. How many grams of copper are in the necklace? If 18-karat gold has a density of 15.5
calculate the number of NaCl formula units formed when 190 Na atoms and 98 Cl2 molecules react? 2Na + Cl2 → 2NaCl
Determine the amount of heat (in kJ) given off when 1.89 104 g of ammonia are produced according to the following equation. Assume that the reaction takes place under standard-state conditions at 25.0°C.
moles of H30+ or OH- must you add to 8.92 L of HA solution to adjust its pH from 4.34 to 5.09? assume a negligble volume change
A particular snack mix contains 1.30 g of salt per 100 g of the mix. How much mass of the mix can be consumed and still be within the FDA limit of 2.40 g of salt.
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