4 Answered Questions for the topic Chem 2 Help

04/10/16

Redox titration question? Determine the molarity of a solution? PLEASE HELP!!
Q1. Iron is often used to standardize permanganate solutions. A 0.158 g sample of pure iron wire was dissolved in dilute sulfuric acid to form a solution of iron (II) sulfate. This was titrated... more
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01/20/16

CHEMISTRY PLEASE HELP!!!!!!! Calculate the concentration of a crystal violet solution prepared by diluting 4.0 mL of 1.0 x 10^-4 M crystal viole...
Calculate the concentration of a crystal violet solution prepared by diluting 4.0 mL of 1.0 x 10^-4 M crystal violet with 2.0 mL of 0.100 M NaOH and 4.0 mL of distilled water.    I am so so so... more
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Chem 2 Help Chem

12/06/15

3.80 moles of oxygen are used up in the reaction. How many moles of water are produced
In a combustion reaction, acetylene (c2h2) combines with oxygen to form carbon dioxide and water  
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Chem 2 Help

08/29/14

At 1 atm, how much energy is required to heat 83.0 g of H2O(s) at –18.0 °C to H2O(g) at 129.0 °C?
how do you work this problem?
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