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Which word corrects the statement:
1. 1 g of lithium chloride is dissolved in 10 mL of distilled water. The container becomes warm to the touch. The reaction is an (exothermic/ endothermic) process. This is because (less/ more) energy is released when ions bond to water molecules than is used to break the bonds in lithium chloride and to break the hydrogen bonds in the water.
2. 1 g of ammonium chloride is dissolved in 10 mL of distilled water. The container becomes cold to the touch. The reaction is an ( exothermic/ endothermic) process. This is because (more/ less) energy is released when ions bond to water molecules than is used to break the bonds in ammonium chloride and to break the hydrogen bonds in the water.
Derive the second order integrated rate law and half-life equation showing all relevant mathematical steps.
a radioisotope used to evaluate heart function in exercise stress tests, decays by capturing one of its own core electrons. it also emmits gamma rays. write an equation for its nuclear decay, then identify the daughter isotope
Compute the mass flow rate of the bottom product stream as well as the mass fractions of the ethanol and water in the top product stream.
1.00 W electric heater operates for 10 minutes to hear the gas in a cylinder. At the same time, the gas expands from 2.00L to 10.00L against a constant atmospheric pressure of 1.0 atm. What is the change in internal energy in Joules of the gas
The concept of free energy allows prediction of spontaneity of a process by considering the changes in ________ and ________ during the process.
Blood alcohol content (BAC) is often reported in weight-volume percent (w/v%). For example, a BAC of 0.08% corresponds to 0.08 g CH3CH2OH per 100 mL of blood. In Ontario, and the rest of Canada, the maximum legal BAC for fully licensed drivers is ..
If the mass of analyte is 10.40 grams, what is the mass % of acetic acid in the analyte?
A solution contains 0.10 M I- and 0.10 M CO32-. In an attempt to separate the ions, Pb(NO3)2 is slowly added to the solution. (a) Identify the precipitates that could form and predict which precipitate will form first.
Compound Y absorbs 2 equivalents of hydrogen when reduced over a palladium catalyst to give Z (C14H14) and reacts with ozone to give one product, benzoic acid (C7H6O2). Draw the structure of compound Z
Assuming that all of the sulfate and nitrate originated as acids. calculate the expected pH of this rain water.
The reaction between hydrogen and oxygen to yield water vapor has delta H+ -484kJ: 2H2(g)+O2(g)-->2H2O(g) delta H=-484 kJ Part A How much PV work is done in kilojoules for the reaction of 0.20 mol of H2 with 0.10 mol of O2 at atmospheric pressure ..
Using data in Appendix E in the textbook, calculate the standard emf for each of the subsequent reactions.
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