Chlorine has two naturally occurring isotopes,35Cl (isotopic mass 34.9689 amu) and 37Cl (isotopic mass 36.9659 amu). If chlorine has an…
Principles of Chemistry 1211L Procedure: Useful formula Q = m x ∆T x C · The Periodic Table of Elements is provided for your use. Do not remove from the test bank. · Do not write your answer on this test. · Some problems are easier than others. Some advice: save the […]
1.State briefly the purpose of the biochemical connection (no more than 250 words) THIS CORRESPONDS TO A COMPLETE SUMMARY OF THE READING 2. Report three of the main findings of the biochemical connection EACH FINDING SHOULD BE EXPLAINED IN DETAIL 3. State the most important outcome as a conclusion of the biochemical connection. (no more than […]
Determination of Density Required materials provided in the Home Science Tools chemistry kit: 100mL graduated cylinder, balance (scale) Required materials not provided in the Home Science Tools chemistry kit: cell phone (with camera), metric ruler, 25-30 pennies, graph paper Objectives: to find the density of regular-shaped and irregular-shaped substances including graphing techniques Introduction: […]
For this topic, you will select two problems from the Chemistry: Atoms First, OpenStax text (in the link there is a book), one problem from each of the following two problem sets: For Problem 1: You MUST select a problem from the end of the chapter “Exercises” from Chapter 7: Problems 43-95.For Problem 2: You […]
Introduction This lab will require the student to create solutions of iron and aluminium by using electrolysis. Students will then observe the voltage created in a number of galvanic cells and create a reactivity order. Materials 9V battery Alligator clips * may have come with multimeter / voltmeter Aluminum foil Cups / Beakers – 7 […]
You are told that a sample of gas has a pressure of = 837 , a volume of = 5270 , and a temperature of = 292 . If you use = 8.206×10−2 , which of the following conversions would be necessary before you could find the number of moles of gas, , in this […]
1. Determine the cell reaction, the standard cell potential (E0 cell) and the half-cell that acts as the cathode for the voltaic cells composed of the following half-cells. a. Mg2(aq) 2eyMg(s) Cl2(g) 2ey2Cl(aq) b. Ni2(aq) 2eyNi(s) Ag (aq) e yAg(s) c. MnO4 (aq) 8H(aq) 5eyMn2(aq) 4H2O (l) Cd2(aq) 2eyCd(s) d. Br2(l) 2ey2Br(aq) Na(aq) eyNa(s) e. […]
If a swimming pool can hold 782 dekaliters, how many centiliters can it hold? How many kiloliters? Express your answers…
Virtual Lab – Solution Properties Start the lab by clicking this link. No passoword is needed. Login using the provided username. This should bring you to the virtual lab interface. Watch the introduction video and read the directions on the screen. Record all of your answers in the journal while conducting the entire lab (including […]
