Acids/Bases
Strong electrolytes are also categorized as
What are strong acids?
The oxidation number of I in IO4- is ____.
What is 7?
Enthalpy change that is endothermic ____ 0.
What is > 0?
Q=
What is mc(change in t)
The chapters that will be covered on the exam and 3 topics from each
What is Ch. 8 and Ch.9
-dilutions;acids/bases; redox
-enthalpy; Hess's law; calorimetry
How water behaves and what this is called.
What is an acid and a base? What is amphiprotic?
In which formula does Mn have the highest oxidation number
Ba(MnO4)2
Mn(NO3)2
MnO2
What is Ba(MnO4)2
Enthalpy change that is exothermic is ____ 0.
What is < ?
1 Cal = ____ cal
What is 1000 cal?
_____ moles of NO3 ions are present in 275 mL of a 1.25 M copper(II) nitrate solution, Cu(NO3)2
What is 0.688 mol?
Vinegar contains acetic acid (60.06 g/mol). The acetic acid in a 12 g sample of vinegar was neutralized by 84.0 mL of 0.250M NaOH. The mass percent of vinegar is _____.
What is 10.5%
In the equation below ________ is oxidized.
Fe2O3(s)+3CO(g) --> 2Fe(s) + 3CO2(g)
What is C in CO
This following is true for __________.
Euniv=Esys+Esurr=0
What is the first law of thermodynamics
For a process at constant volume...
w=____, E=_____, q=______
What is w=0; E=q?
In specific region Pb in drinking water cannot be higher than 35 ppb. This is ______ in mol/L when you have a sample of 1 g of water. (Given: Pb is 207.2 g/mol and density of water is 1g/mL)
What is 1.7x10-7 M?
Volume of standard solution (1.50M) used to prepare 10.0L of saline solution (0.155M)
What is 1.03 L
To balance the redox equation the coefficient of Mn2+ is ____.
Mn2+(aq)+O2(g)--> MnO2(s)
What is 2
When calculating enthalpy for the following reaction H2 is not used because it is in its _______.
2NO2(g)+7H2(g)--> 2NH3(g) +4H2O(l)
What is standard state?
The change in temperature of a skillet is ______. when 10.0mL of water at 25C is added to a hot skillet and all of it is converted to . steam at 100.0C. The pan is 1.20kg.
What is -47.5C?
True or False. A good reducing agent is a metal in a high oxidation state, such as Mn7+.
what is false
The net ionic equation for a neutralization reaction of
CaCO3(s)+H2SO4(aq)--> CaSO4(aq) +H2O(l)+CO2(g)
What is
CaCO3(s)+H+(aq)+HSO4-(aq)--> Ca2(aq)+SO4(aq)+H2O(l)+CO2(g)
When the redox reaction below is balanced the coefficient for H2O is _____.
Fe2+(aq)+MnO4-(aq) = Fe3+(aq)+Mn2+(aq)
What is 4?
The change in enthalpy for the following reaction is ______.
2NO2(g)+7H2(g)--> 2NH3(g) +4H2O(l)
NH3 =-46 kJ/mol; NO2=+33kJ/mol; H2O=-286 kJ/mol
What is -1302 kJ/mol?
A bomb calorimeter with a molar heat capacity of 4.31kJ/C combusted 1.21 g of acetone (58.08 g/mol). The temp rose by 8.8C. The enthalpy of the reaction is _____.
What is -1820 kJ/mol?
In experiment, 10.0 g of ice at -20.0C is converted to steam with temp 110.0C. _______ energy is required for this process.
(Given: Hvap=2260J/g; Hfus=334J/g; cp(ice)=2.06J/gC; cp(water)=4.18; cp(steam)=1.99)
What is 30.7kJ?