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Explain when a solution containing 1.4g of Ba(NO3)2 and 2.4g of NH2SO3H is boiled, a precipitate forms. The precipitate may be Ba(NH2SO3)2, BaSO4, or Ba(NH2)2. a) Compute the number of moles of each reactant. b) Find out the limiting reactant. c) Explain what conclusion can you reach about the limiting reactant?
how many moles of ethylene glycol should be added to the radiator to lower the freezing point of the water from 0
If a student starts with 0.545 g of pure 4-aminobenzoic acid and ends up with 0.488 g of benzocaine, what are their theoretical and percent yields
If the sun is a distance of 1.5 x 10^8 km from earth, how many minutes does it take sunlight to reach earth if light travels at 186,000 miles each second
Draw the enantiomer of proline which would give rise to the absolute stereochemistry and draw a proposed catalytic cycle for the transformation and how does the catalyst activate the substrate
positronium consists of an electron and a positron same mass as electron but opposite chargeorbiting around their
How many milliliters of 0.200 M FeCl3 are needed to react with an excess of Na2S to produce 1.38 g of Fe2S3 if the percent yield for the reaction is 65.0%? 3 Na2S(aq) + 2 FeCl3(aq) ? Fe2S3(s) + 6 NaCl(aq)
Suppose that 1.08 g of rubbing alcohol (C3H8O) evaporates from a 75.0 g aluminum block.If the aluminum block is initially at 25 C, what is the final temperature of the block
Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5. 10-3, Ka2 = 8. 10-8, and Ka3 = 6. 10-10. Calculate [H + ], [OH ? ], [H3AsO4], [H2AsO4? ], [HAsO42- ], and [AsO43- ] in a 0.62 M arsenic acid solution.
c2h4g o2g co2g h2oghow many moles of o2 would be required to react with 0.410 moles of c2h4 in the above unbalanced
What is the final Celsius temperature if 4.55 L of nitric oxide gas at 35°C is cooled until the volume reaches 1.00 L
Before investigating the scene, the technician must dilute the luminol solution to a concentration of 5.00×10^-2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are presen..
assuming that radiation with 15.0 cm is used that all the energy is converted to heat and that 4.184 j is needed to
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