Answer and submit photos of any problems that required working out11- We purchased eggs by the dozen. Name several other familiar packaging units.12- One dozen eggs is a convenient consumer unit. Explain why the mole is a convenient chemist unit.13- what is the average molar mass of a) Si b) Ag14. What is the average molar mass of a) S b) Na15. What is the mass of avagadros number of argon atoms?16- What is the mass of avagadros number of iron atoms17- How many carbon atoms are present in 1.0 x 10^-4 mol of carbon?18- How many mercury atoms are present in 1.0 x 10^-10 mol of mercury?19- how many mol of arsenic correspond to 1.0 x 10^2 atoms of arsenic?20- How many mol of sodium correspond to 1.0 x 10^15 atoms of sodium?21- How many g of neon are contained in 2.00 mol of neon atoms?22- how many g of carbon are contained in 3.00 mol of carbon?23- what is the mass in g of 1.00 mol of helium atoms?24- what is the mass in g of 1.00 mol of nitrogen atoms?25- calculate the number of mol corresponding to a) 20.0 g He b) .040 kg Na c) 3.0 g Cl226) calculate the number of mol corresponding to a) .10 g Ca b) 4.00 Fe c) 2.00 kg N227) what is the mass, in g, of 15.0 mol of silver?28) what is the mass, in g, of 15.0 mol of carbon?29) calculate the number of silver atoms in 15.0 g of silver30) calculate the number of silver atoms in 15.0 g of carbon33) Calculate the molar mass of a) NaCl b) Na2SO4 c) Fe3(PO4)234) Calculate the molar mass in each of the following formula units a) S8 b) (NH4)2SO4 c) CO235) Calculate the molar mass, in g/mol, of oxygen gas, O236) Calculate the molar mass in g/ mol, of ozone, O337) calculate the molar mass of CuSO4 x 5H2O38) Calculate the molar mass of CaCl2 x 2H2O39) calculate the number of mol corresponding to: a) 15.0 g NaCl b) 15.0 g Na2So440) calculate the number of mol corresponding to a) 15.0 g NaCl b) 15.0 g Na2SO441) calculate the mass in g corresponding to a) 1.000 mol H2O b) 2.000 mol NaCl c) .400 mol NH3 d) .800 mol BaCO3 e) 10.0 mol He f) 1.00 x 10^2 mol H2 g) 2.00 mol CH4 h) .400 mol Ca(NO3)245) How many g are required to have .1 mol of each of the following? a) Mg b) CaCO3 C) C6H12O6 (glucose) D) NaCl 47) How many g are required to have .100 mol of each of the following compounds? a) NaOH b) H2SO4 c) C2H5OH (ethanol) d) ca3(PO4)249) how many mol are in 50.0 g of each of the following substances? a) KBr b) MgSO4 c) Br2 d) NH4Cl e) CS2 f) Al2(CO3)3 g) Sr(OH0 2 h) LiNO356) what is the meaning of the coefficient in a chemical equation?58) what is the meaning of (s), (l), or (g) immediately following the symbol for a chemical substance?62) describe the process of checking to ensure that an equation is properly balanced74) write a balanced equation for a) Ammonia is formed by the reaction of nitrogen and hydrogenb) Hydrochloric acid reacts with sodium hydroxide to produce water and sodium chloride76) write a balanced equation for a) sulfur, present as an impurity un coal, is burned un oxygen to produce sulfur dioxide82) why is it essential to use balanced equations to solve mol problems?84) describe the steps used in the calculation of g of product resulting from the reaction of a specified number of g of reactant94) How much oxygen is produced from 1.00 x 10^2 g Hg)? Dinitrogen monoxide ( also known as nitrous oxide and used as an anesthetic) can be made by heating ammonium nitrate NH4NO3(s)—–> N2O(g) + 2H2O(g)How much dinitrogen monoxide can be made by 1.00 x 10^2 of ammonium nitrate?C.T #1- Which of the following has fewer mol of carbon: 100 g of CaCO3 or .5 mol of CCl4?C.T. #2- Which of the following has fewer mol of carbon: 6.02 x 10^22 molecules of c2H6 or 88 g of CO2?
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