Question

Complete the following table. atoms in sample molecules in sample moles of sample mass of sample 404.70e25 X 403.19e22 400530 mol 4.14 g C6H6 402.60e24X 40 1.44e23 0.239 mol H2O 404.31 9 2.61 2.61 x 1022 molecules CO2 404.3 mol 4.0 191 g 7.28 40 7.29e23 1.21 mol HCI 4A44.1 444.08 4.08 x 1024 molecules H20 40 6.78 mol 40122 405.71e21 5.71 Check the number of significant figures. mol a0 .0095 0.304 g CH30H

Answer 1

Super Cliven - 4.149 Cho moes of Golae Given mass in geam Molar mass 4:14. 0.0530 mol 78.17 No. of moles X NA Molecule in cample= = = 0.0530 X NA. 3.19022

Atans in a sample = No. of moles x NAX No. of atans : 0.0530 X NA XIZ. (C= 6, =6) 3.2323 + 0.239 mol Hotellite No. of moles = Civen mass in gram Molan mass . Mass of sample = 0.239 X 18.01528 = 4.319 Molecules in sample = 0.239 x NA 1.44623 Atans in sample : 6.239 X NAX 3 = 4.32 223 - 2.61 X 1022 molecules We Molecules in sample : moles x NA moles of sample=0.043 mol Molecules of w, in 2.61x1622 Atams in sample = moles XN AX No, I atends - 7.03 41022 mass of sample = 0,043 xH. 01 21.899

- 1.21 mol HCl mart og sample : 1:21 x 36.46 : 44.19 Molecules in sample = 1.21 X NA = 7.29 €23 Ataus in scumple = 1.21X NAX2 -1.46624 4 4.00 x1024 molecules H2O moles of sample= 4.00 8,24 NA = 6.78 mol mass of sample=" 6.78X18.01 : 1229 Alarms = 4.00 x 1024 x 3 = 1.22x1025 0.304 g CH₂OH 0.304 moles of sample= notar mass of cuzon ₃ = 0.009 mol

molecules in sample= NAX 0.304 32.04 35.71€ 21 Atans in sample= NAX 0.304 x 6 .3.43 e 22 T | mass of sample moles of sample i Molecules in seunple I atours in sample 4.149 Cohol - 010530 mol 3.19 e 22 3.83023 2.319 0.239 mol H₂O . lique23 . 4.32 e 23 1.899 0.043 mol 2.618102 molecules of CO2 7.83e22 44-19 1.21 mol Hu 7.29 623 1.46024 1229 . 6.78 mol 1.22225 14.08X1024 molecules H2O 0.304g 0.0og mol 5.71621 8.43e22 си, ои the solution we fill the table Hence, by using easily.