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What volumes of 0.53 M HNO2 and 0.59 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.41?
a solution is made by dissolving 21.5 grams of glucose c6h12o6 in 255 grams of water. what is the freezing-point
what is the energy of a single UV photon and a mole of UV photons having a wavelength of 25 nm?
calculate the heat released when 3.89 l of cl2g with a density of 1.88 gl reacts with an excess of sodium metal at
The Instructor recently had his car inspected by the KWIK Stocker State Inspection at Webster, Texas. The table below shows part of the Emission Test Results.
The product of the final step in the synthesis below are acetone and acetaldehyde. What are the identities of compounds A and B?
heat capacity of the bomb calorimeter is known to be 10.6 kJ/C From previous measurements,. Now determine the mass percent of naphthalene(C10H8) in the sample?
gas cylinder a has a volume of 48.2l and contains n2g at 8.35 atm at 25 degrees c. gas cylinder b of unknown volume
how many possible trisubstituted derivatives c6h3x2y can be obtained from the meta disubstituted benzene c6h4x2? ignore
The following reaction is first order with respect to NO and first order with respect to O2, and the rate constant is 5.0 x 104 M-1s-1
a 588 g chunk of iron is heated to 97.5c. then it is immersed in 247 ml of water originally at 20.7c.when thermal
If equal masses of N2 and H2 (7.00 grams each) are combined to produce ammonia NH3, how many grams of ammonia could be produced at maximum yield.
What is the percentage of copper (by mass) in copper(II) nitrate trihydrate. Cu(NO3)2 : 3H20
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