Chemistry Archives - Page 15 of 30

What chemical reaction is taking place at the equivalence point of the titration in Part D that gives rise to the pH at the equivalence point? Use the generic formula HA to represent the unknown weak acid and write a chemical equation to help explain your answer.

Posted on April 27, 2022 by Ambrose

Potentiometric Determination of Ka for a Weak Acid Supplies: pH meter, pH electrode, 3-250 mL beakers, 2 watch glass, 50 mL beaker, wax pencil, magnetic stir bar, stir plate, 50 mL buret, ring stand, buret clamp, 10 mL volumetric pipet, pipet pump (or bulb), transparent one foot rulers, squirt bottle of DI water, KimWipes, standard […]

The sulfite ion, S032-, reacts with acid analogous to the way carbonate, CO32-, reacts. Write a balanced chemical equation, including phases, for the reaction of potassium sulfite with hydrobromic acid.

Posted on April 23, 2022 by Ambrose

Questions Answer the following questions on a separate sheet of paper 1. The sulfite ion, S032-, reacts with acid analogous to the way carbonate, CO32-, reacts. Write a balanced chemical equation, including phases, for the reaction of potassium sulfite with hydrobromic acid. 2. Write a balanced double replacement reaction for each of the following sets […]

A mixture of two miscible liquids with a widely different boiling point is distilled. The temperature of distilled liquid is observed to plateau and then drop before rising again. Explain the temperature drop.

Posted on April 18, 2022 by Ambrose

Simple and Fractional distillation 1. Introduction (2pts) 2. Experimental condition (1pt) 3. Data (4pts) • Data table for simple and fractional distillation your unknown mixture • In one window, show the simple and fractional distillation graphs with line graph format •The relative ratio of unknown compounds • Name and ratio of two of unknowns in […]

Prepare a research paper of your choice selected from the topics below.

Posted on April 18, 2022 by Ambrose

Prepare a research paper of your choice selected from the topics below. The research paper should be 8 pages in length . Try to find at least three bibliographic references in addition to the required reading. (A superior paper would require 6 references). References should be properly cited in the body of the paper and […]

Investigate the effect of increasing concentration of hydrochloric acid on the rate of reaction in the reaction between hydrochloric acid and marble chips.

Posted on April 11, 2022 by Ambrose

Investigate the effect of increasing concentration of hydrochloric acid on the rate of reaction in the reaction between hydrochloric acid and marble chips. Description (experiment introduction “should be paraphrased”) Marble is a metamorphic rock composed of calcium carbonate. Hydrochloric acid reacts with calcium carbonate to form calcium chloride, water and carbon dioxide. The equation is: […]

Research an element, and create a small informational poster about that element, combining text and images.

Posted on April 5, 2022 by Ambrose

Meet the element-Hydrogen In this assignment you will research an element, and create a small informational poster about that element, combining text and images.

Write your chosen practical in the form of a scientific paper.Analyse lab results, research a topic in detail and present it in a clear, informative way to the rest of the scientific community and your peers.

Posted on March 18, 2022 by Ambrose

Rationale: Presenting work carried out in the lab as a lab report for the rest of the scientific community is a crucial scientific skill, and a stepping stone to prepare you for writing scientific articles. This assessment gives you the opportunity to analyse lab results, research a topic in detail and present it in a […]

Is this environmental chemistry-related problem formed?

Posted on March 17, 2022 by Ambrose

Nuclear waste and its impact on environment Description The presentation should cover the following topics, as much as applicable: Is this environmental chemistry-related problem formed, Chemistry mechanisms behind this problem, How does this problem impact the environment (or human/organism health)? Are there any solutions to solve the problem? Any green chemistry related solutions available? What […]

Give any final thoughts about this meal and if you would do anything differently next time. Explain.

Posted on March 1, 2022 by Ambrose

ASSIGNMENT: Address the questions listed below fully with complete sentences, inserting tables when necessary. Make sure to put it in your own words, paraphrasing and summarizing. Only use quotes when necessary, citing all sources used. Do make sure to apply the appropriate in-text citations when necessary. Make sure to review the Instructions page for this […]

What makes one statement or claim science? Along these lines, how do you distinguish a scientific claim from a non-scientific claim, or pseudoscience?

Posted on March 1, 2022March 1, 2022 by Ambrose

What is science? What makes something science? How is science distinguished from non-science or pseudoscience? These questions have been the source of debate for many centuries, even millennia. Two thousand years ago, natural philosophers disputed the very nature of matter. Was matter continuous, infinite, and divisible as claimed by Plato, Aristotle, and their contemporaries? Or […]

Essay Quoll

Category: Chemistry

What chemical reaction is taking place at the equivalence point of the titration in Part D that gives rise to the pH at the equivalence point? Use the generic formula HA to represent the unknown weak acid and write a chemical equation to help explain your answer.

The sulfite ion, S032-, reacts with acid analogous to the way carbonate, CO32-, reacts. Write a balanced chemical equation, including phases, for the reaction of potassium sulfite with hydrobromic acid.

A mixture of two miscible liquids with a widely different boiling point is distilled. The temperature of distilled liquid is observed to plateau and then drop before rising again. Explain the temperature drop.

Prepare a research paper of your choice selected from the topics below.

Investigate the effect of increasing concentration of hydrochloric acid on the rate of reaction in the reaction between hydrochloric acid and marble chips.

Research an element, and create a small informational poster about that element, combining text and images.

Write your chosen practical in the form of a scientific paper.Analyse lab results, research a topic in detail and present it in a clear, informative way to the rest of the scientific community and your peers.

Is this environmental chemistry-related problem formed?

Give any final thoughts about this meal and if you would do anything differently next time. Explain.

What makes one statement or claim science? Along these lines, how do you distinguish a scientific claim from a non-scientific claim, or pseudoscience?