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A sample of gas occupies 10l under a pressure of 1atm. what will be its volume if the pressure is increased to 2atm ? assuming that temperature of the gas sample does not change
What is the [H30+] and the pH of a benzioc acid-benzoate buffer that consists of 0.17 M C6H5COOH and 0.26 M C6H5COONa? (Ka of benzoic acid = 6.3*10^-5)
There is 12.0 g CCl3F in a 1.1 L container at 856 torr and 300 K. What is the mass of the liquid left over?
when making ice cream, the temperature of the ingredients is decreased to below the freezing point of pure water by using a surrounding water bath that contains a large amount of table salt, NaCl.
The freezing point and Kf constant for camphor can be found here. Calculate the molar mass of vitamin K.
A bottle containing 1kg of water 18.01g/mol is boiled until evaporation is complete. Determine w, q, U, H for the process. Hvap = 40.6kJ/mol. Explain when we find the w what temperature we use (room temperature or 100 C)
Problem- The equilibrium constant, K, for a neutralization reaction can be symbolized as Kn. Using Kw, Ka, and Kb values, determine Kn for the following reaction at 25° C.
The calorimeter constant is 27.8J/°C. Write the balanced chemical equation and calculate the amount of heat released by the experiment
How many molecules of water are produced when 143 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water.
What is the molarity of a sodium chloride solution if 2.45 grams of NaCl is dissolved in 250 mLs of water? C. How many grams of solute are in 1.75 Liters of 0.460 M sodium monohydrogen phosphate
Write the eqn for each large-extent B/L A/B rxn which occurred on making this mixture. Do this by starting with the rxn that involves the strongest B/L A with the strongest B/L B. Label this rxn (i). Continue writing eqns in this "strength order" ..
87.0% of the heat produced by the boiler is used to create saturated steam at 20.0 bars (absolute) from liquid water at 24° C. If 175 m3/h of steam is needed, what rate of heat does the boiler output
The average distance between planet X and Earth is about 2.59 x 108 miles. How long (minutes) would it take pictures transmitted from a space vehicle on Planet X's surface to reach Earth
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