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If He(g) has an average kinetic energy of 7070 J/mol under certain conditions, what is the root mean square speed of F2(g) molecules under the same conditions?
the rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 305K and 315 K. What must the activation energy be for the rate constant to double as described?
Calculate the number of molecules in 37.0 mL of ethanol, CH3CH2OH. The density of ethanol is 0.789 g/mL.
Calculate the [HNO3] in each aqueous solution at 25C and classify each solution as acidic or basic
Dry air at 1.0 atm is passed over a high voltage electric discharge (~15,000v) to convert 0.85% O2 to O3. The ozonized air is then euilibrated withwater at 25 degrees celcius in a vessel which contains
A student dissolves 1.01 grams of nicotinic acid, C_6_H_5_NO_2_, in water to give 60 mL of solution having a pH of 2.67. What is the approximate value of Ka for the acid based on this observation?
Maleic anhydride reacts with ethylene glycol to produce an alkyd resin. Draw the structure of the condensation
Determine the fraction of N2 molecules traveling between 500 and 600 m/sec at room temperature
The number of lone pairs = The number of single bonds = The number of double bonds = 2. The central nitrogen atom A. Obeys the octet rule B. Has an incomplete octet. C. Has an expanded octet.
nitrate solution according to the unbalanced equation given below. Hg(NO3)2(aq) + NaI(aq) = HgI2(s) + NaNO3(aq) (a) What volume of Hg(NO3)2 is required for complete precipitation?
Draw the Lewis structure of formic acid, HCO2H. (Hint: C is the central atom. One of the H is bonded to an O.) How do we know which of the possible structures for HCO2H is more likely to be correct?
Calculate the partial pressure of each gas in the container. Express the pressure values numerically in atmospheres, separated by commas.
When 1.33 mol of HCl reacts with excess MnO2, how many moles of Cl2 form?
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