Question

0/2 pts Incorrect Question 8 What is the term for the pressure exerted by gas molecules in the air? Vapor pressure Partical pressure Barometric pressure Gas pressure

Answer 1

Question - 8 of Atmospheric pressure is the magnitud pressure is a system due to the atmosphere, such as the as the pressure exerted by air molecules. This atmospheric measured using a Barometer, chence it is also called Barometric pressure is pressure. Answer: Barometric pressure Question is T= 22°C 273+22 - 295 K P = 3psi

I psi 0.068 atm 1. P=3x0.068 0.204 atm CaCO₃ +2HCl -> Cald, + co₂t H₂O I mol of CaCO₃ rearts with 2 moles of HCl Molar mars CaCO₃ = 100.lg mał no. of moles of CaCO₃ of mass Molar mars = 0.014 mola 100.1 no. of moles of HCl = Molarity & Volume こ 2 MX 15ml 30m moles = 0.03 moles

We see that CaCO₃ is the limiting reagent 0.014 moles of CaCO₃ reacts with 2x0.014 -0.028 moles of Hech therefore, amount of co, liberated 0.014 moles Using the videal law : gas PV=nRT V=nRT Р = 0.014 X 0.0821x 295 0. 2044 = 1.66 h Answer: moles of co₂ = 0.014 moles volume of co 1.66L 2
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