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pressure will be measured (in Pa) if a gas is exerting a force of 10.00 N on a mercury barometer with an inner diameter of 10.00 mm? Recall that the area of a circle is A = ? r2 and that 1 N = 1 kg m/s2.
How does the answer for part (a) change if the gas of interest is He? c) What is the largest molecular mass that is capable of escaping Earth's surface at 298 K?
Tenzic acid is a H2Tenz is a diprotic acid with ionization constants Ka1 = 4.1 x 10-4, Ka2 = 1.5 x 10-9. Calculate a value for the [Tenz2-] in a 0.500 molar solution of H2Tenz.
Properties of Electrolyte Solutions, In the winter of 1994, record low temperatures were registered throughout the United States. For example, in Champaign, Illinois, a record low of -29 F was registered.
A sample of .755g of NaHCO3 was dissolved in 25mL of .960 M HCl. After heating, 6.7 mL of .601 M NaOH was needed to neutralize the excess acid that was not neautralized
carboxylic acids react with alcohols to form esters which are found in all plants and animals. what is the percent by mass of carbon in each of the following esters?
Describe the preparation of 1L solution of 0.02M Tris buffer, PH 7.8. Please don't just write numbers.. explain it.
If the reaction 2H2S(g) 2H2(g) + S2(g) is carried out at 1065C, Kp = 0.0120. What is the value of Kc for the reaction H2(g)+1/2S2(g) H2S(g) at 1065C ?
A 68-g ice cube at 0°C is placed in 680 g of water at 22°C. What is the final temperature of the mixture?
Gaseous HBr has an absorption band centered at about 2645 cm-1 consisting of a series of lines approximately equally spaced with an interval of 16.9cm-1.
How many grams of P2O5 gas are present in a 750 ml container that is at 75 degrees C and at a pressure of 590 mm Hg?
Hydrogen sulfide decomposes according to the following equation, for which Kc = 0.00011 at a given temperature. 2 H2S(g) 2 H2(g) + S2(g)
What is the molarity of a solution of 12.0 g of NH4Br in enough H2O to make 240 mL of solution?Answer in units of M.
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