LPS Puma Chemistry



5080635-98425MC: ________FR: _________Raw: ________Curve: _______00MC: ________FR: _________Raw: ________Curve: _______U1Q2: Solution Chemistry (Multiple Choice)Multiple-Choice Of the species below, only __________ is not an electrolyte.HClRb2SO4ArKOHWhich one of the following solutions will have the greatest concentration of hydroxide ions, assuming they all have the same volume?0.200 M aluminum hydroxide0.200 M sodium hydroxide0.100 M ammonia0.200 M beryllium hydroxideAg+(aq) + Cl-(aq) AgCl(s)A student mixes dilute AgNO3(aq) with excess NaCl to form AgCl(s), as represented by the net ionic equation above. Which of the diagrams below best represents the ions that are present in significant concentrations in the solution?17659358382000When lithium hydroxide and hydrobromic acid (HBr) are mixed, a neutralization reaction occurs. What are the spectator ions in this reaction?Li+ and Br-OH- and H+Li+, OH-, H+ and Br-H+ and Li+Which of the following are nonelectrolytes in water?I: H2II: C6H12O6III: NH3I onlyII onlyI and II I, II and IIIA 2.0 L stock solution of Pb(NO3)2 has a concentration of 1.0 M. You need to use 500.0 mL of this solution for a lab. When you remove 500.0 mL, what is the concentration of Pb(NO3)2 remaining in the stock solution?0.25 M0.5 M1.0 M2.0 MA stock solution of hydrochloric acid has a concentration of 6 M. In order to conduct an accurate titration of a sample of sodium hydroxide, you only need 3 M hydrochloric acid. If the stock solution has a volume of 2.0 L and you want to make 500.0 mL of 3 M hydrochloric acid, how much of the stock solution will you need to dilute?250 mL500 mL1000 mL1.5 LAs part of a lab, you are tasked with completing a reaction that produces a precipitate when one substance is mixed with Calcium Sulfate. You are given four different compounds that could be used as the other reactant. Of the compounds below, which would be most likely to form a precipitate? KClO4HClNH4NO2Mg3(PO3)2An aqueous solution of an unknown solute is tested with litmus paper and found to be acidic. The solution is weakly conducting compared with a solution of CaCl2 of the same concentration. Which of the following substances could the unknown be?NH4OHHC2H3O2NaClHClYou are set to conduct the titration of an acid with an unknown concentration. Which of the following solutions would you use to titrate the acidic solution?Na3PO4H2SO4KOHH3PO4U1Q2: Solution Chemistry (Free Response)A student conducts an experiment to determine the molar mass of an unknown solid monoprotic acid, HA, where A represents an unknown polyatomic ion, by titration with 0.10 M NaOH.Write the molecular, ionic and net ionic equation for the reaction between the acid HA and NaOHThe student needed to make 50. mL of the 0.10 M NaOH solution for the titration. In order to do this, how many mL of a 6.0 M stock NaOH solution would she need?At the equivalence point in the titration, the student had added 2.48 mL of NaOH. Based on this information, what is the concentration of the acid HA if 5.0 mL of acid were used?If the mass of HA used in the experiment was 0.0090 g, what is the molar mass of the acid HA? __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ................
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