Pparatus Solution
Reading
0.1 M H2SO4 150 mA
0.1 M Ba(OH)2 150 mA
To 30 mL of the Ba(OH)2 solution, 10 mL portions of H, SOA were added until a total of 50 ml. of H, So, were used. The
following results were recorded.
DATA TABLE
Total H2SO4 Added Meter Reading
Observations
O mL
150 mA Ba(OH), and H2SO, clear, colorless
10 mL
65 mA milky white precipitate forms
20 ml
31 mA more precipitate forms
30 ml
O mA precipitate heavy and settles
40 mL
29 mA no added precipitate seen to form
50 ml
62 mA
no change seen
Plot the meter reading on the graph provided. (Click here for graph paper.) Be sure to properly label the axes.
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Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.

All of the following are part of the biosphere except

What type of reaction fuels the processes seen here?