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If 100.0mL water of at 50.0C is added to 100.0 mL of water at 20.0C. What temperature would the mixture of water reach? Assume the system is perfectly sealed and no heat is lost to the calorimeter or to outside environment.
In an acid-base titration 14.7 mL of .107M NaOH (aq) sodium hydroxide is needed to react to an end point with .1252 grams of H2C2O4 oxalic acid. Determine the molarity of the aqueous sodium hydroxide solution. 2NaOH + H2C2O4 ----> 2HOH + Na2C2O4
How would you estimate the number of atoms in a gram of iron, using the mass in grams of an atomic mass unit
When iron is dissolved in an oxidizing agent, such as sulfuric acid, Fe(II) or Fe(III) will be formed?
Write a balance equation using the correct formulas and including conditions (s, l, g, or aq) for each of the following reactions: a) solid calcium carbonate decomposes to produce solid calcium oxide and carbon dioxide gas. b) Nitrogen oxide gas r..
What is the percent yield of ammonia when 150.0 g of nitrogen reacts with 32.1 g of hydrogen if the actual yield is 174 grams?
one of the components of the fuel mixture on the apollo lunar module involved a reaction with hydrazine n2h4 and
The U.S. Navy has a system for communicating with submerged submarines. The system uses radio waves with a frequency of 76 s-1. What is the wavelength of this radiation in meters?
What is the molar mass of a gas if 0.358 g of the gas occupies a volume of 186 mL at 5.00C and 1.10 atm.
Nitrosyl bromide, \rm NOBr, is formed in the reaction of nitric oxide, \rm NO, with bromine, \rm Br_2: \rm 2NO(g)+Br_2(g)\rightleftharpoons 2 NOBr(g) The reaction rapidly establishes equilibrium when the reactants are mixed.
What wavelength is expected for light composed of photons produced by an n=3 to n=1 transition in a hydrogen?
Methanol, CH3OH, is a nonelectrolyte; acetic acid, HC2H3O2, is a weak electrolyte; and ammonium chloride, NH4Cl, is a strong electrolyte. What are the solute particles present in aqueous solutions of each compound? (Select all that apply.)
Write down a lewis structure for SbCl5 and also explain Does the the octet rule is obeyed by this molecule Explain how many grams would 3.01 * x10 23 atoms of tellurium have?
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