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How many moles of hydrochloric acid were added to the flask? The molar mass of hydrochloric acid is 36.3094 g/mol. Remember that the 6 M HCl solution was diluted by half with water. (molar mass = mass/moles) Choose the closest answer.A. 0.03 mol B. 0.003 mol C. 0.06 mol D. 0.004 mol How many moles of magnesium are consumed for every mole of hydrogen gas produced? Choose the closest answer.A. 1.5 moles B. 2 moles C. 0.5 moles D. 1 mole
Given that magnesium is the limiting reagent, which of the following chemicals will be found in the flask after the completion of the reaction.A. Magnesium B. Hydrochloric acid C. Magnesium hydride D. Hydrofluoric acid
SHOW LAB WORKAddition of which of the following reagents would lead to the formation of more hydrogen gas?A. Magnesium B. Hydrochloric acid C. Magnesium chloride D. Hydrogen
Draw the protonated species, clearly showing where protonation occurs. Draw all possible resonance structures of the conjugate acid of the product, and use these to explain why the product is so much more basic than a typical ester.
What is the molecular weight of a gas if a 250 mL sample of this gas collected over water at 735 mm Hg and 28.0°C has a mass of 1.25 gram? The equilibrium vapor pressure of water at 28.0°C is 28.3 mm Hg.
calculate the energy, in joules and calories, lost when 75.0 g of water cools from 86.4 degrees celsius to 2.1 degrees celsius
a 4.40 g piece of solid co2 dry ice is allowed to vaporizechange to gas in a ballon. the final volume of balloon is
what mass of aspirin can be prepared by reacting 5.00 g if salicylic acid with an excess of acetic anhydride?
a mixture of cds and cos is present in a sample the amount of cds was determined by reacting 8.767 grams nbspof the
100.0mL of a K2HPO4 solution is titrated with 0.1187M NaOH. The endpoint is reached when 115.4mL of OH- has been added. Find out the mass of K2HPO4 dissolved in the original 100.0 mL H2O as well as the pH of the solution at the end point of the ti..
1. suppose you were given a sample of iodine crystals a sample ofantimony and a sample of mixture of iodine and
Rank the substituents shown below in order of Cahn-Ingold-Prelog priorities (1 = highest priority group, 4 = lowest priority group).
Explain which of the subsequent amino acids when presented in a polypeptide chain interrupts the alpha helical arrangement
Consider the following precipitation reaction 2 Na3(PO4)2(aq) + 3CuCl2(aq) ----> Cu3(PO4)2 (s) + 6 NaCl (aq). What volume of 0.168 M NaPO4 solution is necessary to completely react with 91.4 mL of 0.117 M Cucl2
lithium metal dissolves in water to yield hydrogen gas and aqueous lithium hydroxide what is final concentration of hydoxide ions when 5.5 g lithium metal is dropped into 750 mL of water
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