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Identify the following as true or false:
a) A 1.20 mol sample of helium gas (He) occupies the same volume at SATP as a 1.20 mol sample of oxygen gas (O2) occupies at SATP.
b) Graphs of volume vs. temperature and pressure vs. temperature for ideal gases should be perfectly straight line.
c) Equal volumes of the same gas at the same temperature and pressure contain equal number of grams.
Fill in the blanks:
d) The Law of Combining Volumes states that, at a constant temperature and pressure, volumes of gaseous reactants and products of chemical reactions are always simple ratios of ___ numbers.
e) Equal volumes of the same gas at the same temperature and pressure contain ___ numbers of molecules
f) Avogadro's Theory states that equal ___ of gases at the same temperature and pressure contain equal numbers of molecules.
Explain what is the heat released during reaction. Also what is the enthalpy of neutralization. Does doubling the volumes of acid and base double the amount of heat. Does doubling the concentration of acid base double the amount of heat released
A certain reaction A ? products is second order in A. If this reaction is 10.% complete after 20. s, how long would it take for the reaction to be 90.% complete
Amitriptyline is a tricyclic antidepressant that is also a weak monoprotic base. A clinical chemist wishes to extract this drug with chloroform from a blood sample for analysis
K = 0.040 for the reaction below at 450 C. If the reaction starts with 0.20 M Cl2 and 0.20 M PCl3, what concentration of PCl5 will be present at equilibrium. PCl5(g) PCl3(g) + Cl2(g) a) 0.09 M b) 0.13 M c) 0.16 M d) 0.03 M e) 0.20 M
In which of the following reactions would increasing pressure at constant temperature not change the concentrations of reactants and products, based on Le Ch telier's principle
Describe and explain the possible effect on your results if you mistakenly extracted the dicholoromethane solution with 5% HCL rather than 5% NaHCO3
Calculate the amount of solute in g needed to prepare 453.1 mL of a 5.22 %(m/v) LiNO3 solution.
The heat fusion for water is 80. cal/g. How many calories of heat are released when 20 g of water is at 0 C is frozen to ice ?
Determine the number of moles of O2 produced by the decomposition of 213 g of NaClO3.
Solid benzoic acid, C6H5COOH(s), is often used to determine the heat capacity of a bomb calorimeter, because the constant volume heat of combustion of this compound is known with high precision
The hydration of norbornene and the bromination of trans-cinnamic acid are both examples of additions across a double bond. How many new stereocenters were generated in the hydration
Potassium sulfate solution reacts with barium bromide solution to produce a precipitate of barium sulfate and a solution of potassium bromide. Write the molecular equation for this reaction.
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