Exam I
How many electrons, protons, and neutrons does C have?
e-=6
p+=6
n=6
What is the % composition by mass of hydrogen in H2O?
11.2 % H
88.8 % O
What is the volume of one mole of gas inside a container under STP conditions?
22.4 L
Atoms of which element have the smallest ionization energy?
-Na, F, K, Cl
K
What is the name of your peer leader (first and last)?
Samantha Zepeda
Convert 7.6 nm to cm
7.6E-7 cm
A 0.300 M solution of HCl is prepared by adding some 1.50 M HCl to a 500 mL volumetric flask and diluting to the mark with deionized water. WHat volume of 1.50 M HCl must be added?
0.1 L or 100 mL
endothermic that forms sugar or an exothermic that forms sugars
An endothermic reaction that forms sugars
Which metal has the highest melting point?
K, Ca, Fe, Zn
Fe
What is Sam’s major?
Forensic Science
What is the formula for ammonium phosphite?
(NH4)3PO3
What is the balanced chemical reaction for the reaction between rubidium sulfate and ammonium hydroxide?
Rb2SO4 + 2NH4OH -> 2RbOH + (NH4)2SO4
An orbital in a ground-state gas-phase As atom has n=3, l=1. How many electrons are in this orbital?
2
How many pi bonds are in a molecule of propane, C3H4?
2
What is the room number where the workshop takes place?
401
What are the diatomic molecules?
H2, N2, F2, O2, I2, Cl2, Br2
Copper(I) oxide, Cu2O, is reduced to metallic copper by heating in a stream of hydrogen gas. What mass of water is produced when 10g copper is formed?
1.417 g
What is the electron configuration of Al3+ ion?
1s22s22p6
In the Lewis structure of the chlorate ion, how many lone pairs of electrons does the chlorine atom have?
1
How much did Sam pay for her car a few weeks ago?
$677
How many oxygen atoms are in 225g of O2?
8.47x10^24
The mineral energize is 48.41% Cu, 19.02% As, and 32.57% S by mass. What is the empirical formula of energite?
Cu3AsS4
The wavelength of one line in the emission spectrum of C is 538 nm. What is the energy of one photon with this wavelength?
3.69E-19 J
In the [C(NH2)3]+, what is the best description of the hybridization of the nitrogen atoms?
All three sp2
Name all of your peers part of the workshop.
Ashley
Victor
Christina
Dax
Isaac
Dorian
Renata
Fernando
Denisse