Need help solving problems Nursing Chemistry Chapter 4 CALCULATIONS AND THE CHEM
ID: 543051 • Letter: N
Question
Need help solving problems Nursing Chemistry Chapter 4 CALCULATIONS AND THE CHEMICAL EQUATION solutio 434 Calculate the molar mass,ing/mol of each of the following tate form if 4.59 Will a 4.60 Will a precipitate form if soluti formula units: form if solutio c. CO Pb(NO,)2 and KI are mixed? 4.35 Calculate the molar mass, in g/ mol, of oxygen gas, O AgNO, and NaOH are mixed? 4.36 Calculate the molar mass, in g/mol, of ozone, Op 4.38 Calculate the molar mass of CaCl: 2HO Applications Chemical Equations Represent Che Foundations 4.61 When you are balancing an equ 4.62 Describe the process of checkir 4.63 What is a reactant? 4.64 On which side of the reaction a 4.65 What is a product? 4.37 Calculate the molar mass of Cuso, . 5H.O. scripts in the chemical formulas tion is properly balanced. 4.39 Calculate the number of mol corrnsponding to a. 15.0 g NaCI b. 15.0 g Na,sO 4.40 Calculate the number of mol corresponding to a. 15.0 g NH b. 16.0 g O Calculate the mass in g corresponding to: a. 1.000 mol HO b. 2.000 mol NaCl 4.41 4.42 Calculate the mass in g corresponding to 4.43 4.66 On which side of the reaction Applications 4.67 Balance each of the following a. 0.400 mol NHs b. 0.800 mol BaCO, Calculate the mass in g corresponding to: a. 10.0 mol He b. 1.00 x 10 mol H2 4.44 Calculate the mass in g corresponding to: a. 2.00 mol CH b. 0.400 mol Ca(NO3)h 445 How many g are required to have 0.100 mol of each of the following? 4.68 Balance each of the followir a. C,H1206(s) + O2(g)-- 4.46 How many g are required to have 0.100 mol of each of the following? a. CH12Os (glucose) b. NaC c. omplete PC15(g) + H20()- 469 Complete, then balance, ea are required to have 0,100 mol of each of the a. Cals) + F2(g) b. Mg(s) +O2(g) C. H2(g) + N2(g) following compounds? a. NaOH b. HSO 4.48 How many g are required to have 0.100 mol of each of the 4.70 Complete, then following compounds? a. C,H,GH (ethanol) b. Ca (PO balance, a. Li(s) +O2(g)- b. Cals) + N2(g)--> c. Al(s) + S(s)-- 4.49 How many mol are in 50.0 g of each of the following substances? How many mol are in 500 g of each of the following b. MgSO 4.71 Balance each of the foll 4.50 a. CH1og) +O18) b. AuS,(s) + H2(g)- c. Al(OH) (s) +HCIa substances? b. NHCI 4.51 How many mol are in 50.0 g of each of the following a. substances? b. Al2(CO)s 4.52 How many mol are in 50.0 g of each of the followin 4.72 Balance each of the fo substances? a. Sr(OH)2 a. Fe,03(s) + CO(g) . b. C6H6(I) + 02(g)- c. Og(s) + 1,0(s) b. LiNO
Explanation / Answer
4.34
a. S8 molar mass = 8 * 32.065 g/mole = 256.52 g/mole
b. (NH4)2SO4 =(2* atomic weight of Nitrogen) + (8 * atomic weight of hydrogen) + (4 * atomic weight of oxygen) + atomic wt of Sulfur
= (2 * 14) + (8 * 1) + (4 * 16) + 32.065 = 132 g/mole
c. molar mass of CO2 = atomic weight of carbon + (2 * atomic weight of oxygen) = 12+ (2*16) = 44 g/mole