Gas Laws
The name of the gas law that looks like V1P1 = V2P2
What is Boyle's law?
What is the sig fig of 1.85040?
6
What is it called when an unstable nucleus ejects an alpha particle.
What is alpha decay?
In an endothermic reaction, energy is _____
absorbed
The element represented by the letter W.
What is Tungsten?
The name of the gas law that looks like V1T2 = V2T1 (or V1/T1 = V2/T2)
What is Charles' Law?
How many nanometers are in a megameter.
What is 15?
Thorium-234 has a half-life of 24 days, started with 100 g how much is left after 48 days?
What is 25g?
Does an exothermic reaction have a positive or negative delta of enthalpy?
negative
True or false
Black and white tea come from the same plant.
True
A 50.00 L sample of gas collected in the upper atmosphere at a pressure of 18.30 torr is compressed into a 0.1500 L container at the same temperature. What is the final pressure?
6100 torr
Where do you look to accurately calculate the volume of a liquid with a meniscus
the bottom :)
When does the half-life of Uranium hit zero.
Never, dum-dum
How much heat is released when a constant pressure system burns 4.50 g of methane gas?
226kj
Nomenclature name of ClO4
Perchlorate
A 280.0 mL sample of neon exerts a pressure of 660.0 torr at 26.0C. At what temperature would it exert a pressure of 940. torr in a volume of 440. mL assuming the number of moles remains constant?
669K
This is when cations of two compounds switch places.
What is a double displacement reaction?
What process releases the most energy.
What is fusion?
What is Hess's Law?
You can find delta enthalpy for any process as long as we find a route where delta H is known in each step.
What does an electrolytic cell do?
Uses electricity to make a chemical change
Given the following reaction: Mg (s) + 2HCl (aq) = H2 (g) + MgCl2 (aq)
Calculate the volume of hydrogen gas produced by the reaction of 0.52 grams of solid magnesium with excess hydrochloric acid.
0.48 L of H2
This states that the vapor pressure of a solution is directly proportional to the mole fraction of solvent.
What is Raoult's Law
The minimum quantity of radioactive material needed to cause a nuclear chain reaction.
What is critical mass?
Calculate the standard enthalpy of the following reaction using the standard enthalpies of formation.
-1398 kj
Who is JJ Thomson?