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A sample of neon gas at 1.20 atm compresses from 250 mL to 125 mL. If the temperature remains constant, what is the final pressure
Find P given that 25 mL of toluene and 25 mL of an aqueous solution containing 0.000330 moles of an organic compound were shaken together and 31 % was extracted into the organic phase.
Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
a 70g piece of ice at 0c is added to a sample of water at 8c, all of the ice melts and the temp of the water decreases to 0c, how many grams of water were in the sample?
a balloon is filled with a gas. the baloons volume is 2.1 l and the gas pressure is 1.7 atm. then the balloon is placed
what is a detailed mechanism for the formation of dibenzalacetone? This reaction is beginning with acetone and benzaldehyde and is treated with NaOH and then forms dibenzalacetone.
a sample of powder was found at a crime scene. it is believed that the powder is cocaine. the only four elements in the
A titanium bicycle frame contains the same amount of titanium as a titanium cube measuring 6.6cm on a side. 1) Use the density of titanium to calculate the mass in kilograms of titanium in the frame.
Methanol (CH3OH) can be made by controlled oxidation of methane. CH4(g) 1/2 O2(g) ? CH3OH(g) (a) Calculate ?H° and ?S° for this reaction. (b) Calculate ?G° at 298 K. (c) Calculate the temperature at equilibrium.
What mass of NaOH is needed to precipitate the Cd2+ ions from 44.0 mL of 0.500 M Cd(NO3)2 solution?
Calcium nitrate will react with ammonium chloride at slightly elevated temperatures, as represented in the equation Ca(NO3)2(s) + 2NH4Cl(s) ? 2N2O(g) + CaCl2(s) + 4H2O(g). What is the maximum volume of N2O at STP that could be produced using a 2.4..
An unknown metal hypochlorite salt, M(ClO)2, is subjected to analysis by iodometric titration: the salt is dissolved in dilute sulfuric acid, treated with excess aqueous KI,and then titrated with Na2S2O3. The unknown metal ion(M2+)
Calculate the pH at each point indicated in the titration of 100.00 mL of 0.0755 M NaClO2 with 0.0412 M HCl.
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