chem answering help questions below and help me to understand

Understand how to determine the density of a solution given a mass and a volume 

 Understand how to determine volume of a solid  

Understand Beer’s Law and how it relates to concentration. 

 Understand what happens when you change variables within Beer’s Law (path length, concentration, absorbance, etc.)  

Understand how and when to use the equation C1V1=C2V2  

Be able to use simple conversions to get answers in g/cm3, mg/mL, etc.  Be able to explain standard curves, why they are useful and when they are useful

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