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There were two acid solutions: 0.1 M HCl and 0.1 M H2SO4 , 250 mL each in two identical volumetric flasks prepared by a lab technician. Unfortunately, she forgot to label them and there were no more concentrated acids left in the lab. She found 1L of a standard 0.1 M NaOH solution in the stock. How would you suggest her in detail to figure out and identify those two unlabeled solution? (show all involved chemical reactions)
An automobile gasoline tank holds 43 of gasoline. When the gasoline burns, 151 of oxygen are consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
a sample containing 3.20 neon gas has a volume of 9.00 . assume that the pressure and the temperature remain constant.
A certain toilet cleaner uses NaHSO4 as its active ingredient. In an analysis, 0.500 g of the cleaner was dissolved in 30.0 mL of distilled water and required 57.4 mL of 0.00535 M NaOH for complete neutralization in a titration.
what are the allowable transitions from 4d to 5f of hydrogen atoms using the quantum numbers l and m to indicate the allowable transitions
describe the preparation of 200 mL of 1.00% (w/v) aqueous CuSO4, from a 0.218 M CuSO4 solution.
A 5.00-mL aliquot of a solution that contains 4.74 ppm Cu2+ is treated with an appropriate excess of 1,10-phenanthroline and diluted to 50.0 mL. The molar absorptivity of a Cu2+- 1,10-phenanthroline solution at 435 nm is 6940 L mol-1 cm-1. What is..
Use the valence bond thoery to determine whether the complex ion CoCl4^2- is a square planar or tetrahedral. measurements of its paramagnetism show that it has three unpaired electrons
the pressure is found to be 1atm. 3 g of gaseous substance B are then added to the 2g of A, and the pressure is now found to be 1.5 atm. Assuming ideal gas behavior. calculating the ratio of molecular weights, that is MwA/ MwB
Potassium metal reacts violently when added to water according to the balanced equation: 2K(s) + 2 H2O (I) > 2KOH(aq) + H2(g). How many moles of H2O are needed to react completely with 7.54 mol of K
A 1.95 gram sample of sodium sulfate hydrate lost 0.756 gram of water when heated to constant mass. What is the formula of the hydrate?
according to the following reaction how many grams of ammonia will be formed upon the complete reaction of 30.1 grams
he reduction table in your notes, calculate the standard cell potential for the following reactions. 2 Al3+(aq) + 3 Pb(s) 2 Al(s) + 3 Pb2+(aq)
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