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Consider 1 mole each of gaseous He and N2 at the same temperature and pressure. The diameter of N2 is 1.7 times that of He. State which gas (if any) has the greater value for: a) <c>; b) crms; c) average translational energy <E> ; d) Z1; e) Z11; f) density; g) mean free path A(alpha)
What mass of this substance must evaporate in order to freeze 112 of water initially at 18? (The heat of fusion of water is 334 the specific heat of water is 4.18 .
What volume (in milliliters) of 0.100 M NaOH should be added to a 0.120 L solution of 0.024 M glycine hydrochloride
organic carbon and that sorption can be described by the following linear model: Ksd=focKow. Estimate the mass of TCE sorbed to the solid material.
the ratio of the no of molecules in the excited state at the temperature of 213 K to the number of ground state molecules and the percent of the excited molecules at 213 K.?
A chemist measures the amount of bromine liquid produced during an experiment. She finds that 766.g of bromine liquid is produced. Calculate the number of moles of bromine liquid produced.
A 363 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 636 mmHg. Calculate the moles of Ar present.
Explain why alcohols such as ethanol and propanol are soluble in water, butanol is moderately soluble and pentanol is slightly soluble
When steam (hot water) is passed over iron, hydrogen gas and iron (3) oxide are formed. What weight of steam would be needed to react completely with 100.0g of iron.
A foul-smelling gas produced by the reaction of with was collected, and a 1.00 sample was found to have a mass of 1.52 at STP. What would be the formula.
The volume of a drop of rain was found to be 0.448 ml at N.T.P. How many molecules of water and number of atoms of hydrogen are present in this drop.
A 325-mL sample of solution contains 25.3 g of CaCl2, which is fully dissolved. (a) Calculate the molar concentration of Cl- in this solution. (b) How many grams of Cl- are in 0.100 L of this solution?
Why does benzyl alcohol, a primary alcohol, react rapidly in the presence of HCl to form benzyl chloride? If it's primary, shouldn't the reaction be slow?
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