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An empty aerosol-spray can at room temperature (20 C) is thrown into an incinerator where the temperature reaches 674C. If the gas inside the empty container was initially at a pressure of 1 atm, what pressure did it reach inside the incinerator? Assume the gas was at constant volume and the can did not explode.
A 952 cm3 container of gas is exerting a pressure of 108 kPa while at a temperature of 48 °C. Calculate the pressure of this same amount of gas in a 1236 cm3 container at a temperature of 64 °C.
13When heated in a flame, sodium atoms emit light with a frequency of 5.09 × 1014 s-1. What is the wavelength of this radiation in nm? [Data: c = 2.998 x 108 m/s ]
A solution gave a precipitate when ammonium oxalate was added but gave no precipitate when ammonium sulfate was added. For each Magnesium group ion(Barium, Magnesium, Strontium, and Calcium) tell whether the ion
Determine if the sample has non-volatile impurities (dissolved in it) b. If found to contain such impurities, determine a suitable method for its purification
The three pKa values for phosphoric acid are 2.3, 7.2, and 12.1. Calculate the amount of each salt that you will need to prepare the buffer.
Find the mass of carbon in 1.750 L of acetic acid (CH3COOH) given the density of acetic acid is is 1.050g/mL.
The first step of the Wittig reaction occurs through what kind of mechanism? A. acid-base B. SN2 C. rearrangement D. nucleophilic acyl substitution
Give an example of a biological reaction in which water participates as a reactant and a reaction in which it participates as a product.
Calculate the amount of work done against an atmospheric pressure of 1.00 atm when 500.0 g of zinc dissolves in excess acid at 30.0°C. Zn(s) + 2H+(aq) → Zn2+(aq) + H2(g)
A student mixes 99.1g of water at 80.1C with 32.5g of water at 27.3C in an insulated flask. What is the final temperature of the combined water
Li2S is pictured n the text on .553. The length of the unit cel i 5.88 x 10^2 pm. For this structure determine: the coordination numbers of Li + and S2-
calculate the expected pH value of the buffer system 5mL .1M CH3COOH + 5mL .1M CH3COO-Na+ using the henderson-hasselbalch equation using the pKa values: carbonic acid= 6.37 and acetic acid=4.75
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