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1) Carbon disulphide, CS2, is a liquid. having a density of 1.26 g/mL. What volume is occupied by 5.50 x 1022 molecules of CS2? 2) What is the mass of 5.13 moles of Na2Cr2O7? 3) How many total atoms are there in 34.2 g of CH3CO2H? 4) How many grams of aluminum are there in 4.05 x 10²5 molecules of Al 5) Determine the density of gold if 1.25 x 1023 atoms occupy 2.83 x 10-3 I 6) Calculate the number of grams in 13.4 L of chlorine gas (Cl2) at STP.

1) Carbon disulphide, CS2, is a liquid. having a density of 1.26 g/mL. What volume is occupied by 5.50 x 1022 molecules of CS2? 2) What is the mass of 5.13 moles of Na2Cr2O7? 3) How many total atoms are there in 34.2 g of CH3CO2H? 4) How many grams of aluminum are there in 4.05 x 10²5 molecules of Al 5) Determine the density of gold if 1.25 x 1023 atoms occupy 2.83 x 10-3 I 6) Calculate the number of grams in 13.4 L of chlorine gas (Cl2) at STP.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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1) Carbon disulphide, CS2, is a liquid. having a density of 1.26 g/mL. What volume is occupied by 5.50 x 1022 molecules of CS2? 2) What is the mass of 5.13 moles of Na2Cr2O7? 3) How many total atoms are there in 34.2 g of CH3CO2H? 4) How many grams of aluminum are there in 4.05 x 1025 molecules of Al20 5) Determine the density of gold if 1.25 x 1023 atoms occupy 2.83 x 10-3 L 6) Calculate the number of grams in 13.4 L of chłorine gas (Cl2) at STP. Q1) what is the molarity when 0.85 mol CaSO4 is dissolved in 3 L of solution? Q2) Sea water contains 30.0 g of NaCl per liter. What is the molarity of NaCl in sea water? Q3) 6 g of (KBr) was dissolved in water, and make a 500 mL solution. (a) Calculate its molarity. (b) What is the concentration in grams per L? Q4) (a) how many moles of H2SO4 are there in 250 mL of a 0.7mol/L sulfuric acid solution? (b) What mass of acid is in this solution? Q5) what mass of (NaOH) is needed to make up 250 mL of a 0.750 mol/L solution? Q6) what is the concentration of (NaCl) in g/L and g/mL in a 2.50 M solution? Q7) A solution of (CaSO4) contained 0.500 g dissolved in 3.00 L of water. Calculate the concentration in (a) g/L, (b) g/mL and (c) mol/L.
Transcribed Image Text:1) Carbon disulphide, CS2, is a liquid. having a density of 1.26 g/mL. What volume is occupied by 5.50 x 1022 molecules of CS2? 2) What is the mass of 5.13 moles of Na2Cr2O7? 3) How many total atoms are there in 34.2 g of CH3CO2H? 4) How many grams of aluminum are there in 4.05 x 1025 molecules of Al20 5) Determine the density of gold if 1.25 x 1023 atoms occupy 2.83 x 10-3 L 6) Calculate the number of grams in 13.4 L of chłorine gas (Cl2) at STP. Q1) what is the molarity when 0.85 mol CaSO4 is dissolved in 3 L of solution? Q2) Sea water contains 30.0 g of NaCl per liter. What is the molarity of NaCl in sea water? Q3) 6 g of (KBr) was dissolved in water, and make a 500 mL solution. (a) Calculate its molarity. (b) What is the concentration in grams per L? Q4) (a) how many moles of H2SO4 are there in 250 mL of a 0.7mol/L sulfuric acid solution? (b) What mass of acid is in this solution? Q5) what mass of (NaOH) is needed to make up 250 mL of a 0.750 mol/L solution? Q6) what is the concentration of (NaCl) in g/L and g/mL in a 2.50 M solution? Q7) A solution of (CaSO4) contained 0.500 g dissolved in 3.00 L of water. Calculate the concentration in (a) g/L, (b) g/mL and (c) mol/L.
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