Question

7) What mass of carbon monoxide will exert the same pressure as 10.0 g of chlorine gas in the same container under the same conditions? a) 10.0 g b) 2.80 g c) 7.90 g d) 3.95 g e) none of these 8) Under what set of conditions would chlorodifluoromethane have the smallest molar volume? a) low temperature and low pressure b) high temperature and high pressure c) the molar volume is always 22.4 L/mol d) high temperature and low pressure e) low temperature and high pressure

Answer 1

Date Por Me solution (7) From ideal gas equation mana we know that on moto PV=nRT1 02 Where p is V is andrs) Dis 1 m pressure vokutne of gas. moles of a gan o g given mass vih atomic mans) gas constant Temperature is Kelvin. R is IS I T we know that (6) mole given mass to 22000 o slo atomic mass or molecular mars (3) od 10 rroba In Civen problem pressure constant (same). voheime constant Temperature constantin R Constant outra so moles of gas is directly proportional to other gas's moles under same condition. I let Pi is the pressure exert bey song of chlorine Pig a laro moles of chlorine (n.) = 10.09 35.45 g.

atomic mass of chlorine = 36.457 so no (moles of chlorine) = 100g 35.45 g 29219 game pressure is exeated buy carbon monoxide so pressure same P1 moles of Carbon monoxide (22) = given mass molecular mecs Molecular moss Of carbon monoxide is =(12.01 +16 g = 20.019 o atomic mass of carbon (C) = 12001 g mass of oxygen (0) = 16 g PV-hi RT 01 Pi = RT = constanta ni v + 2 PL - constant 1001 bid sol Pi-Pi a nista b21

Date / Page No - h2 For same pressure. 10.og Given mass of co 35.45g 20.01g Given mass of carbon monoxide = 10,0* 28.019 35.45 = 7.gog So, mass of carbon monoxide (CO )= 7.90g Ans