Solid Investigation Question:

What is the identity of an unknown solid piece of metal?

Specific questions:

1. What are the observable physical properties of yoursample?

2. If provided with a table of densities of metals, how mightyou use this information to identify your piece of metal?

a. Given that calculating a physical constant is more reliableusing a graph with multiple measurements from multiple samples thanusing measurements from a single sample, how could you use a graphto determine density if you are provided metal pieces of variouslengths. Please note that you are required to submit a graph foryour micro-project. Your graph will need to have a title, axeslabels and a trendline as well as trendline equation. i

. How would you determine volume?

ii. What would you plot in order to get a slope that gives youdensity?

iii. What is the density of your sample?

Solution Investigation Question:

What are some of the key characteristics of unknown sample of anaqueous solution containing an ionic compound?

Specific questions: 1. Given that the cation is from Group 1A,what is the identity of the group 1A metal ion in yoursolution?

2. Given that the ionic compound contains either chloride orhydroxide, how can you determine which? (Two pieces of evidence arerequired and one must be related to solubility rules)

3. What is the concentration of your solution? (Your unknownsample is known to be about 1 M, but you need to determine theconcentration to 3 significant figures using titration. You shouldplan ahead so that you know approximately what volume of yoursample you will need in order to use approximately 25 mL of 0.100 Msulfuric acid for the titration). I'm not sure how to answer eitherof these problems