Chemistry Homework Solutions

How do I dissolve dirt?

Purpose: To introduce the student to a real world application of concepts learned so for in Analytical Chemistry. Apparatus: To be determined. Introduction: IN this experiment you will be given a beaker containing dirt. Dissolve .25 grams using any method/chemicals/devices possible. You are NOT allowed to use hydrofluor ...continues

buffer and indicator

please see attachment

kinetics___the oxidation of an alcohol by dichromate ion

don't understand the concept of the lab....don't know what I'm doing please see attachment

The determination of ascrobic acid in vitamin tablets Lab

questions about lab I need "detailed" "step by step" solutions.The questions are attached. also, it always happen to me that i don't know why i'm doing all the steps. Although I follow the procedure and obyain the data, i don't know the concept of the experiment. so, please include a short paragraph explain how this experime ...continues

the oxidation of alcohol by dichromate ion

I'm given a spectrophotometer. How can I determine the rate law? I can only use the spectrophotometer to determine %T. How can I get from %T to concentration? What strategy do I have to use? (SEE ATTACHMENT)

how to use excel

please answer the questions in yellow and red spces.

Reactions within equations and properties of acidity

A reaction occurs for each of the following below. How do you differentiate between the different driving forces? (a driving force can either be the transfer of electrons; the formation of a precipitate, etc.) 2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2 KOH(aq) + HF(aq) --> KF(aq) + H2O(l) NaF(aq) + HCl(aq) --> NaCl(aq) + HF( ...continues

Molarity and solubility

1) If ZnCO3 (solid) is insoluble in water, but dissolves in excess 6.0 molar HCl (aqueous), how would pull out the proper equation that would support it? 2) How would you go about finding how many mL of 2.00 molar NaOH (Aqueous) solution are required to neutralize 1.858 g of KHC8H4O4 (it's formula weight being 204.22)? An ...continues

acid-base titration; density & specific heat of a solid

1.What data is collected in a titration? 2.How would I be able to find what the volume of 0.10M HCl should be needed to titrate .136 g Na2CO3 according to the reaction equation: Na2CO3(aqueous) +2HCl(aqueous)  2NaCl(aqueous) + H2O(liquid) + CO2(gas) 3.How would I determine the density of a solid using water di ...continues

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