1 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807239/602889/figure_12_12.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (44.0K)</a>]]> A) 16 g/mol B) 1,7 g/mol C) 137 g/mol D) 154 g/mol 2 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807239/602889/figure_12_9.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (49.0K)</a>]]> A) It would expand. B) It would contract. C) It would float. D) It would sink. 3 A) Avogadro constant B) gram C) atomic mass unit D) kilogram 4 12 H22 O11 , are in 1222 g of sucrose?A) 0.258 moles B) 1.22 moles C) 3.57 moles D) 10.8 moles 5 A) 1.7 x 1023 atoms B) 1.7 x 1024 atoms C) 2.1 x 1023 atoms D) 2.1 x 1024 atoms 6 A) 2.38 mol B) 4.75 mol C) 9.50 mol D) 33.2 mol 7 A) 1.22 × 103 mol B) 6.02 × 103 mol C) 8.23 × 1026 mol D) 4.44 × 101 mol 8 2 CO3 → NaBr + H2 O + CO2 , what volume of CO2 at 1.230 atm and 325 K is produced by 50.0 g of HBr reacting with an excess of Na2 CO3 ?A) 6.70 L B) 22.4 L C) 50.0 L D) 1.52 L 9 3 BO3 ?A) 17.50% B) 22.10% C) 38.00% D) 45.30%
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