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a 0.755 g sample of hydrated copper (II) sulfate was heated carefully until it had changed completely to anyhydous copper(II) sulfate (CuSO4) with a mass of 0.438 g. Determine the value of x. [This number is called the number of waters of hydration of copper (II) sulfate. It specifies the number of water molecules per formula unit in the hydrated crystal.]
The products of the fastest inactivation process-Explain what mechanism is responsible for the formation of the products.
If a sample has an initial mass of 2.24 grams and undergoes decay until it has a mass of 0.140 grams, how many half-lives have passed?
How did the Dulong-Petit law fail to reproduce heat capacities of monatomic metals at low temperatures and how did Einstein explain and rectify this failure
Calculate the concentrations of all ions in the solution after reaction. Check your concentrations to make sure that the solution is electrically neutral
If you use 25.0 mL of the 0.24M sodium hydroxide solution to titrate a 0.40 M solution, how many mL of HCl will be used
Consider the following reaction: 2 B5H9 + 12 O2 => 5 B2O3 + 9 H2O How many molecules of B2O3 are made by the reaction of 164.9 g of B5H9
Cobalt was used as an internal standard to analyze a sample of titanium with atomic absorption spectroscopy. A mixture was prepared by combining a 4.50 mL Ti solution of unknown concentration with 2.00 mL of a 10.5 micrograms/mL solution of Co
What is so good about supercritical CO2? Wouldnt its widespread use contribute to climate change?
Write the name of the major organic product obtained from the reaction between 1-phenyl-1-ethanol and concentrated sulfuric acid when heated.
To determine the concentration of a solution of lactic acid a chemist titrates a 20.50 mL sample of it with 0.1010 M NaOH and finds that 10.76 mL of titrant are required to reach the equivalence point. What is the concentration of the lactic acid ..
determine the actual yield If the percent yield of the reaction in B was 91% describes the oxidation of ethanol (C 2 H 5 OH) to acetic acid (CH 3 COOH) by potassium permanganate (KMn04
Calculate the approximate molecular mass of an unknown protein which had an elution volume of 9.0mL on the column.
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