Moles/Representative Particles Calculations. Determine the number of representative particles in each of the following.
1.
Convert 0.250 mol silver into atoms of silver
2. Given 8.56 x 10 mol NaCl, how many formula units of sodium chloride is there?
3. Convert 35.4 mol CO2 into molecules
4. Convert 0.425 mol N2 into atoms of nitrogen
Determine the number of moles in each of the following.
4. Convert 3.25 x 1020 atoms Pb into moles
5. Convert 4.96 x 1024 molecules glucose (C6H120.) into moles
6.
Convert 1.56 x 10” formula units of NaOH into moles
7. Convert 1.25 x 1025 Cu ions into moles
Make the following conversions.
8.
1.51 x 1015 atoms Si to mol Si
9. 4.25 x 102 mol NO, to molecules NO2
10. 8.95 x 102 molecules CCI, to mol CCL

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.

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need

What is the correct lewis dot structure for arsenic?