Question

Name DATA SHEET 4.1 Data Analysis and Calculations Laboratory Pressure: Laboratory Temperature: Tom 273 % Records as 1 For all five trials, calculate the difference between the initial an the mass of Co, in Table 4.1. ate the difference between the initial and final mass of the reaction system 2 For all five trials, calculate the difference between volume of the Co, in Table 4.1. des calculate the difference between the initial and final volume in the syringe. Record this as the TABLE 4.1 Data for Avogadro's Law Volume of COL Mass of Co Mass of Initial Volume Final Volume of Syring of Syringe Final Mass of Reaction System Initial Mass of Reaction System (3) NaHCO (m ) Trial 1 •225g .139 Trial 2 Trial 3 . 9 Trial 4 sulla Trial 5 OWTER 4 > Behavior of Gases 10

Answer 1

. moles of a substance is equal to grame divided by molar mass. mole = gram weight molar mass For 1225 g Natcoz molarmass = 849/mol molex = -2259 = 84 8l mol gram 1 moles ad Theosatical mass at Na HC03 moles = I volume - moles/22.44 Triali .225g = LE0027 0027 mai00 04 mole 1 = 0.06048L Trialal 15g IS - 00179 -100179X22:41 = '0400963 Trial, l 00119 - 026656 L=266 ity 100238 »=:0533122 =53me 12259 27 mole = .002722.4 L ou - Trialu Imole of NaHCO3 = Imole of cor produce ..0027 moles a .0027 mole CO2 . I mole con gas .0027 mole 1, " . = 22.4L (atsp) = .0027 X 22.4L = .060484 = .06048 x 103 ml Chaloomd) Of 60.5 ml