Semester 1 review 2021 Flashcards
What is the equation for the Ideal Gas Law?
PV = nRT Where: P = pressure V = volume n = amount of substance R = ideal gas constant T = temperature
When comparing the rates of gas effusion…
look at the molar masses. Smaller molar masses effuse faster. The inverse is true also.
When identifying a more ideal gas in a pair…
less is more ideal, and a higher temperature = lower pressure, and less is still more ideal.
What is Graham’s Law of Effusion?
r_1/r_2 = sqrt.(M_2/M_1) where: r1 = rate of effusion for gas 1 r2 = rate of effusion for gas 2 M1 = molar mass of gas 1 M2 = molar mass of gas 2
What is the Combined Gas Law?
((P1*V1)/T1) = ((P2*V2)/T2) where: P1 = first pressure P2 = second pressure V1 = first volume V2 = second volume T1 = first temperature T2 = second temperature
Throughout history, humans have tried to convert ______ into more useful forms.
matter
Chemist Percy Lavon laid the foundations of ______ ____ _______ by isolating soy protein from soybeans to produce progesterone, testosterone, and cortisone.
modern day drug design
Chemist ______ laid the foundations of modern day drug design by isolating soy protein from soybeans to produce progesterone, testosterone, and cortisone.
Percy Lavon
______ is the study of the composition, properties, and interactions of matter.
Chemistry
Chemistry is the study of the ______.
composition, properties, and interactions of matter.
There is no single route to answering a question or explaining an observation, but there is an aspect common to every approach: ______
Each use knowledge based on experiments that can be reproduced to verify the results.
Some routes use a hypothesis, ______
a tentative explanation of observations that acts as a guide for gathering and checking information.
A tentative explanation of observations that acts as a guide for gathering and checking information is _______
a hypothesis
The study of the composition, properties, and interactions of matter is called…
Chemistry
tentative means…
not fully worked out
a synonym for “not fully worked out,” is
tentative
Which law identifies the equation, PV = nRT ?
The Ideal Gas Law
Regarding the periodic table, groups are _.
Columns
Regarding the periodic table, periods are _.
Rows
Which groups are representative metals?
1-2A and 13-18
Which Group is Alkaine?
1A
Which group is Alkaline Earth?
2A
Which groups are transitional metals?
3-12
Which set of groups lie in the transition metals?
Inner Transitional Metals
What are the two names of the periods that make of the inner transitional metals?
Lanthanides and Actinides
Which group are the noble gases?
18
What set of groups are non representative metals?
3-12
_ _ don’t participate in chemical reactions since they are stable and non-reactive.
Noble Gases
