Chem 121 Samenvattingen, Aantekeningen en Examens

CHEM 121 Lab Report 6: Measuring Kand Shifting Chemical Equilibria

CHEM 121 Lab Report 4: Reaction Chemistry

CHEM 121 Lab Report 9: Inorganic Synthesis

CHEM 121 Lab Report 1 - Equipment, Safety, and Mass/Volume Measurement (Portage Learning)

CHEM 121 Lab Report 7: Acid Base Titrations

Show the calculation of the molecular weight for the following two compounds, reporting your answer to 2 places after the decimal. 1. Ca3(PO4)2 2. C9H8NO4Cl Your Answer: 1. 3(40.08)+2(30.97+4(16))=310.18 g/mol Ca3(PO4)2 2. 9(12.01)+8(1.008)+14.01+4(16)+35.45 = 229.61 g/mol C9H8NO4Cl 1. 3Ca + 2P + 8O = 310.18 2. 9C + 8H + N + 4O + Cl = 229.61 Question 2 9 / 10 pts You may find the following resources helpful: Scientific Calculator Links to an external site. Periodic Table Equation ...

Complete the two problems below: 1. Convert 845.3 to exponential form and explain your answer. 2. Convert 3.21 x 10-5 to ordinary form and explain your answer. Your Answer: 8.453x10^2 - the decimal point was moved two places to the left - the first number was 8 .0000321 - the decimal point needed to be moved five spaces to the left. 1. Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places = 8.453 x 102 2. Convert 3.21 x 10-5 = negative exponent = smaller than 1, move ...

chemistry 121/chem 121 exam 8 practice exam questions and answers

LSU 2024 CHEM 1212 Chemistry Lab Midterm experiment 1 to 20 Louisiana State University Experiment 1: Physical and Chemical Properties Experiment 2: Classifying Reactions in the Copper Cycle Experiment 3: Synthesis of Copper II Saccharinate Experiment 4: Limiting Reagent Determination Experiment 5: Citric Acid in Fruit Juices Experiment 6: Vitamin C in Fruit Juices Experiment 7: Investigating Conductivities of Aqueous Solutions and Conductimetric Titration Experiment 8: Determining % Comp...