1. Weigh the irregular solid provided by your instructor. Record its identity and mass on the report sheet. 2. Fill the 100mL graduated cylinder between 50 mL and 70 mL with water. 3. Record this initial volume (V1) on the report sheet. 4. Gently place the irregular solid into the graduated cylinder.  This is best accomplished by tilting the graduated cylinder and sliding the solid […]

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:  Density is the intensive property of matter defined as the ratio […]

Explain the terms isotonic solution, crenation, and hemolysis. Discussion post with a minimum of 250 words All posts and replies must contain at least (2) professional references, one may be the course textbook, properly cited in the current APA format.

1) Methot’s Legacy, Reel Injun and the video ‘Cultural Mindfulness’ discuss the power of ‘stories.’ Since colonization, how have the ‘stories’ we tell ourselves, about ourselves as Indigenous peoples, changed? What are these ‘stories’ saying now? (5)

Explain the terms isotonic solution, crenation, and hemolysis. Discussion post with a minimum of 250 words All posts and replies must contain at least (2) professional references, one may be the course textbook, properly cited in the current APA format.

Exercise 1. Calculate the change in pH when 10.0 ml of a 0.100 M solution of NaOH is added to 1.00 L of a solution that is 1.00 M in sodium acetate and 1.00 M in acetic acid 2. Calculate the percentage cocaine existing as free base in solution of cocaine hydrochloride at the following pH: a) 4.6 b) 8.0  c)12.0  3. The pKb of […]

Follow-Up Post Instructions Respond to at least two one peer and/or the instructor. Further the dialogue by providing more information and clarification. The Innocence Project uses DNA testing with the goal of exonerating wrongfully convicted individuals. Look into the impact of this project and examine the technologies used by this group.  How could this and similar projects impact our world? Writing Requirements APA format for […]

I need to write the lab report for periodic and compounds. Follow this steps on the report1- objective /abstract2-theoretical3-data and calculations4- discussion5-reference 6- post lab questions. I am gonna send the pre lab that I did in a classAnd please try to do the report for me. I need to submitted after 10hours.

Follow-Up Post Instructions Respond to at least two one peer and/or the instructor. Further the dialogue by providing more information and clarification. The Innocence Project uses DNA testing with the goal of exonerating wrongfully convicted individuals. Look into the impact of this project and examine the technologies used by this group.  How could this and similar projects impact our world? Writing Requirements APA format for […]

I need to write the lab report for periodic and compounds. Follow this steps on the report1- objective /abstract2-theoretical3-data and calculations4- discussion5-reference 6- post lab questions. I am gonna send the pre lab that I did in a classAnd please try to do the report for me. I need to submitted after 10hours.

Week 7 Discussion: Flow of Genetic Information Required Resources Read/review the following resources for this activity: Textbook: Chapter 17, pages 714-734 Lesson E-BOOK: Bauer, R. C., Birk, J. P., & Marks, P. (2019). Introduction to chemistry. New York, NY: McGraw-Hill Education. Initial Post Instructions In the news, we often hear examples of how DNA or the transfer of genetic information impacted someone’s life. Examples range […]

A) When 6 grams of (Ni(H2O)6)CL2 is dissolved in 10 mL of warm water and 15 mL of NH3, what is the percent yield of Ni? B) When 6 grams of (Ni(H2O)6)CL2 is dissolved in 5g of ethylenediamine (d=.89 g/mL), what is the percent yield of Ni?

Position Paper This addresses course outcome 2.  In this paper, you will defend a particular point of view on an environmental, health, and/or energy issue related to chemistry and the concepts we have discussed in CHEM 121. You will support your point of view with relatively current (using sources published with past 10 years) scientific primary and secondary sources supporting your point of view. See […]

RARE EARTH ELEMENTS Directions: The report must be based on information you gather and summarize. Do not cut and paste any information into the report The report must have a Cover page that includes the Title and your name and the name of the rare earth element you choose for your report. The report must be at least three full pages using double line spacing, […]