(a) Interpretation: The total osmotic pressure of seawater at 25°C needs to be determined if the seawater is assumed to have 0.470 M NaCl and 0.068 M MgCl 2 . Assume both compounds are completely dissociated. Concept introduction: Solution stoichiometry involves the calculation of the concentration of solutions in the given conditions of volumes, moles, etc. There are various ways to calculate the concentration of solutions such as molarity, molality, mole fraction, ppm, ppb, etc. Mole fraction is the ratio of moles of substance and total moles in the solution or mixture. One ppm stands for part per million or milligrams per liter (mg/L) whereas parts per billion (ppb) is one part in 1 billion. Molarity represents the moles of solute dissolve in per liter of solution. The mathematical expression of molarity is: Molarity= Moles of solute Volume of solution (L)
(a) Interpretation: The total osmotic pressure of seawater at 25°C needs to be determined if the seawater is assumed to have 0.470 M NaCl and 0.068 M MgCl 2 . Assume both compounds are completely dissociated. Concept introduction: Solution stoichiometry involves the calculation of the concentration of solutions in the given conditions of volumes, moles, etc. There are various ways to calculate the concentration of solutions such as molarity, molality, mole fraction, ppm, ppb, etc. Mole fraction is the ratio of moles of substance and total moles in the solution or mixture. One ppm stands for part per million or milligrams per liter (mg/L) whereas parts per billion (ppb) is one part in 1 billion. Molarity represents the moles of solute dissolve in per liter of solution. The mathematical expression of molarity is: Molarity= Moles of solute Volume of solution (L)
Solution Summary: The author explains that solution stoichiometry involves the calculation of the concentration of solutions in the given conditions of volumes, moles, etc.
The total osmotic pressure of seawater at 25°C needs to be determined if the seawater is assumed to have 0.470 M NaCl and 0.068 M MgCl2. Assume both compounds are completely dissociated.
Concept introduction:
Solution stoichiometry involves the calculation of the concentration of solutions in the given conditions of volumes, moles, etc. There are various ways to calculate the concentration of solutions such as molarity, molality, mole fraction, ppm, ppb, etc. Mole fraction is the ratio of moles of substance and total moles in the solution or mixture. One ppm stands for part per million or milligrams per liter (mg/L) whereas parts per billion (ppb) is one part in 1 billion.
Molarity represents the moles of solute dissolve in per liter of solution. The mathematical expression of molarity is:
Molarity=Moles of soluteVolume of solution (L)
Interpretation Introduction
(b)
Interpretation:
The maximum volume of freshwater that can be obtained from 1.00 L of seawater needs to be determined if the reverse osmosis equipment can exert a maximum pressure of 100.0 atm at 25°C.
Concept introduction:
Solution stoichiometry involves the calculation of the concentration of solutions in the given conditions of volumes, moles, etc. There are various ways to calculate the concentration of solutions such as molarity, molality, mole fraction, ppm, ppb, etc. Mole fraction is the ratio of moles of substance and total moles in the solution or mixture. One ppm stands for part per million or milligrams per liter (mg/L) whereas parts per billion (ppb) is one part in 1 billion.
Molarity represents the moles of solute dissolve in per liter of solution. The mathematical expression of molarity is:
Consider the reaction of a propanoate ester with hydroxide ion shown below. A
series of four alcohol leaving groups were tested to determine which would be the
best leaving group.
Based on the pKa values of the alcohols, predict which alcohol would produce the
fastest hydrolysis reaction.
HO
FOR
A
Alcohol I, pKa =16.0
B
Alcohol II, pKa =10.0
C
Alcohol III, pKa = 7.2
+ ROH
D
Alcohol IV, pKa = 6.6
Curved arrows are used to illustrate the flow of electrons. Using
the provided starting and product structures, draw the curved
electron-pushing arrows for the following reaction or
mechanistic step(s).
Be sure to account for all bond-breaking and bond-making
steps.
:0:
NaOH, H₂O
00:4
Na O
heat
NaO
Select to Add Arrows
Select to Add Arrows
:0:
Na
a
NaOH, H2O
:0:
NaOH,
H2O
heat
heat
Na
ONH
Select to Add Arrows
Curved arrows are used to illustrate the flow of electrons. Using
the provided starting and product structures, draw the curved
electron-pushing arrows for the following reaction or
mechanistic step(s).
Be sure to account for all bond-breaking and bond-making
steps.
H
CH3NH3+
:0:
:0:
HO
CH3NH2
HH
iSelect to Add Arrows i
Select to Add Arrows i
HH
CH3NH3+
CH3NH2
Select to Add Arrows i
CH3NH3
CH3NH2
ايكدا
HH
Select to Add Arrows
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