CHEM 177
What is the value of the ideal gas constant in L atm/mol K?
What is the overall rate of this reaction?
rate=[O2][NO]2
Who was given credit for "Atomic Theory"
Dalton
From what language does the symbol for gold (Au) originate from?
Latin, gold in Latin is Aurum.
Change 3 atm to torr?
2,280 torr
What is the formula to calculate the rate of reaction?
rate of reaction= change in concentration/ change in time
For what famous effort was the industrial purification of Uranium performed here at Iowa State?
What is the most abundant element in earth crust?
Oxygen, making up just under 50% of earths crust.
What is the abbreviated electron configuration of silver?
[Kr] 4d¹⁰ 5s¹
What is a half-life?
The time it takes to consume half of the reactants.
Who was given credit for the first periodic table. He arranged his periodic table based on atomic weight and chemical reactivity.
Mendeleev
Which element was used as a reusable laxative in Medieval times.
Antimony (Sb)
How many picometers are in one centimeter?
1x1010 pm
How many half-lives does it take to get to 1% of the original amount of product?
6.64 half-lives
1/2^n=% remaining (make sure percent is a decimal)
What was the first element to be discovered?
Phosphorous
What metal has the highest melting point?
Tungsten (W)
What does STP stand for and what are the conditions at STP?
Standard temperature and pressure. Temperature: 273 K Pressure: 1 atm
If a reaction is 2nd order relative to A, and the concertation of A is tripled, by what factor do we expect the rate of the reaction to increase by?
9x
Who is considered the first "modern" chemist?
Robert Boyle
What is widely considered the most dangerous element on the periodic table?
Polonium