Table 4.1 Solubility Rules
Soluble Ionic Compounds 1. Group 1A ions and ammonium.
2. Nitrates, acetates, and perchlorates. 3. Chlorides, bromides, and iodides, except silver, lead (II), copper (I) and mercury (I). 4. Fluorides except lead (II) and 2
Measurement Lab/Excel exercise
Question 1: From the internet, obtain the following information:
Density of zinc: _
Atomic radius of a zinc atom: _
Equation for the area of circle: _
Equation for the circumference of a circle: _
THE DECOMPOSITION OF POTASSIUM CHLORATE
This lab is derived almost entirely from a lab used at the United States Naval Academy
PURPOSE: The purpose of this experiment is to study the decomposition of potassium chlorate,
both by verifying the identity of o
PLEASE RECORD ALL DATA DIRECTLY INTO YOUR LAB NOTEBOOKS
Heating a substance is one of the simplest processes carried out in the chemical laboratory, and is
usually accompanied by a rise in the temperature of the substance being heated. The am
EXPERIMENT 1: Measurement Lab/Excel exercise
DETERMINING THE THICKNESS OF ZINC ON A GALVANIZED WASHER
Adapted from a general chemistry lab from United States Naval Academy, Annapolis, MD
3 galvanized washers, ruler, 3 M hydrochloric acid, and a
Measurement Lab/Excel exercise
1. Would these mistakes cause the calculated thickness of the zinc coating to be higher, lower, or the
same as the actual thickness? Briefly explain.
(a) You used 20 mL of 3 M hydrochloric acid instead of 1
Classification of Matter
Substance: has definite composition and distinct properties.
Homogeneous mixture: uniform throughout (also called a solution)
Ex. Seawater, apple juice
Heterogeneous mixture: not uniform throughout. Ex. Trail mix
CHEM 1310 EXAM 1 F311 1400 VERSION 1 Name: 5:?
1. All of the following are properties of sodium. Which one is a physical property of
(5:? It is a solid at 25°C and changes to a liquid when heated to 98°C.
B) It is surface turns black when rst e
1. Identify the reducing agent in the following chemical reaction.
5F62+(E1q) + Mn04"(aq) + 8H+(aq) a) 5Fe3*'(aq) + Mn2*'(aq) + 4H20(l)
A) Fe3+ B) Mn2+ ®e2+ D) i-r E) Minor
2. Predict the products of the following single replacement reaction.
Fe(s) + CuSO
Multiple choice questions are worth 4 points each. Choose the response that best answerslt
question or completes the statement.
1. _An atom of uranium-236 has ILM
92 protons and 144 neutrons D) 144 protons and 92 neutrons
B) 236 protons and 92
J/ t . . ,7 .
Name: ' - Date:
J. What is the maximum number of grams of ammonia, Nl-lg, that can be obtained from the
reaction of 10.0 g ong and 80.0 g of N2?
N2 + 3H2 -) I a _ .,
Periodic Behavior of Metals
To rank several metals in a reduction activity series that shows their relative reactivities with hydrogen ion and to correlate
their position in the series with some of their periodic properties.
A. Lead (II) nitrate reacts with ammonium phosphate to make lead (II) phosphate and ammonium nitrate. What mass of lead (II) phosphate would be formed if 0.6241 g of lead nitrate is mixed with 2.840 mL of 0.8242 M ammonium phosphate?
B. Calcium hydr
Assigning oxidation numbers:
Elements: oxidation number is zero. Monatomic ions: oxidation number equals the ion's charge. Oxygen: usually 2. In H2O2 and O22- it is 1. In OF2 it is +2. In O 2- it is - Hydrogen is +1 when it is bonded to nonmetals,
Conversions to know
Numbers in green are EXACT numbers!
1.000 lb = 453.6 g 1 in = 2.54 cm 1.000 mi = 1.609 km 1.00 qt = 0.946 L SI prefixes (Table 1.2, bold)
60 sec = 1 min 60 min = 1 hr 1 lb = 16 oz
12 in = 1 ft 3 ft = 1 yd 1 mi = 5280 ft 4 qt =
EXAM 4 FSOg
1. Hydrogen gas exerts a pressure of 466 torr in a container. What is this pressure in atmospheres?
A. 1.63 atm
E. 0.466 atm
Osample of methane gas, CH+(g), occupies a volume of 60.3
/W,7ttn /ir *rrp,
1- 2.0L ofgas A at 1.0 atm and 1.0 L of gas B at 1.0 atm are combined in a 3 L flask. The
flask is sealed and over time they react to completely to give gas C according to the
following chemical equat
ws11 EXAM 4 Version 1
1. 2.4 km is how many millimeters?
A) 2.4 x 104 mm
B) 2.4 x 105 mm
C) 2,400 mm
19) 2.4 x 105 mm
(B) 2.4 x 106 mm
2. A small bubble rises from the bottom of a lake, where the temperature and pressure are
4°C and 3.0 atm, to the wat
_ 1 r y " I
Name: M; m .14? r' r;-
l. 2.0 L ot'gas A at 1.0 atm and 1.0 L
llask is sealed and overtime they react to completel
following chemical equation:
Mtg) + 130;) -> C(g)
Assuming the temperature stays constan
goes to completion?
A) 0.33 atm