YouTube Remaining Time: 1 hour, 06 minutes, 40 seconds. * Question Completion Status: ВFЗ QUESTION 13 What volume of 0.0347 M Ba(OH)2 is needed to completely react with 71.5 mL of 0.0435 M HCI? 2 HCI + Ba(OH)2 → BaCl2 + 2 H2O 89.6 mL O 179 mL O 28.5 mL O 44.8 mL QUESTION 14 What is the molarity of a Ca(OH)2 solution if 27.5 mL of the solution are required to completely rea of 0.148 M Н3РОД? Click Save and Submit to save and submit. Click Save All Answers to save all answers. oll to see more 2,466 APR 15 3D

YouTube Remaining Time: 1 hour, 06 minutes, 40 seconds. * Question Completion Status: ВFЗ QUESTION 13 What volume of 0.0347 M Ba(OH)2 is needed to completely react with 71.5 mL of 0.0435 M HCI? 2 HCI + Ba(OH)2 → BaCl2 + 2 H2O 89.6 mL O 179 mL O 28.5 mL O 44.8 mL QUESTION 14 What is the molarity of a Ca(OH)2 solution if 27.5 mL of the solution are required to completely rea of 0.148 M Н3РОД? Click Save and Submit to save and submit. Click Save All Answers to save all answers. oll to see more 2,466 APR 15 3D

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter3: Chemical Reactions

Section: Chapter Questions

Problem 125QRT: A student set up an experiment for six different trials of the reaction between 1.00-M aqueous...

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A student had 1.00 L of a 1.00-M acid solution. Much to the surprise of the student, it took 2.00 L of 1.00 M NaOH solution to react completely with the acid. Explain why it took twice as much NaOH to react with all of the acid. In a different experiment, a student had 10.0 mL of 0.020 M HCI. Again, much to the surprise of the student, it took only 5.00 mL of 0.020 M strong base to react completely with the HCl. Explain why it took only half as much strong base to react with all of the HCl.
Marble, a material used in buildings and statues, has the chemical composition CaCO₃. CaCO₃ reacts with acid (H₃O⁺), dissolving the solid through the reaction: CaCO₃(s) + 2H₃O⁺(aq) → Ca²⁺(aq) + CO₂(g) + 3 H₂O(l) In 1985, rain water in central Pennsylvania had an approximate H₃O⁺ concentration of 8.0 × 10⁻² mM. What volume of rain would be needed to dissolve a small statue made of 4.50 kg of marble?
naco3(aq) + cacl(aq) ----- 2nacl(aq) + caco3(s) calculate the volume (in mL) of 0.100M cacl needed to produce 1.00g of caco3(s) there is an excess of naco3 molar mass of calcium carbonate = 100.09 g/mol volume of calcium chloride = ? mL
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Kindly watch this video to complete this table: https://www.youtube.com/watch?v=aWD1y7Q0uHI Brand of Antacid Weight of the antacid Initial Volume of HCl Final Volume of HCl Total Volume of HCl reacted with antacid Present solution
North of Kingston you discover a hidden mountain and name it Mt. Kevinmanjaro, which weighs 1x1012 kg and is made entirely of CaCO3(s) (MW = 100 g/mol, Ksp = 3.3×10–9). Each year the mountain received approximately 1×106 L of rainfall, which flow from the mountain completely saturated with Ca2+(aq). How many years will it take to entirely dissolve Mt. Kevinmanjaro?
Consider the following reaction: 2 NO (g) N2 (g) + O2 (g), Kc = 4.0 You start the reaction with 10.0 moles of NO in a 2.0 L vessel. Set up the ICE table for this problem and then set up to solve for x (the concentration of N2). You should end up with a quadratic equation. The quadratic equation in the form, (ax2 + bx + c = 0) is: 3.0x2 − 20x + 25 = 0 x2 − 8.0x + 20 = 0 3.0x2 − 40x + 100 = 0 15x2 − 160x + 400 = 0 15x2 − 80x + 100 = 0
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Decomposition of Dinitrogen Pentoxide At 45°C, dinitrogenpentoxide (N2O5) decomposes into nitrous dioxide (NO2)and oxygen (O2) according to the law of uninhibiteddecay. An initial amount of 0.25 M N2O5 (M is a measure ofconcentration known as molarity) decomposes to 0.15 MN2O5 in 17 minutes. What concentration of N2O5 will remainafter 30 minutes? How long will it take until only 0.01 MN2O5 remains?
A commercial research organization is planning to develop a sensor to detect methyl parathion that may be injected into a water supply by terrorists. The LD50 for methyl parathion is reported to be as low as 6 mg ・ kg−1 for rats. They are assuming a safety factor of 1 × 105 and a volume of liquid ingested equal to a cup of coffee (about 250 mL) in the design of the instrument. What concentration (in mg ・ L−1) must their instrument be able to detect? Using Equation 6–10, the concentration you have calculated, the ingestion rate of 250 mL, an exposure frequency of one day, and exposure duration of one day, an adult malebody weight, and an averaging time of 1 day, estimate the hazard index. The RfD for methyl parathion is 2.5 × 10−4 mg ・ kg−1 ・ d−1 .
A technician tritated a vinegar sample. Data Below: Concentration of NaOH = 0.500 M Final buret reading = 32.46 mL Initial buret reading = 23.81 mL Volume of Vinegar tested: 10.00mL a) What was the molarity of acetic acid in the vinegar sample? b) What was the mass percent of acetic acid in the vinegar sample?