Question about Concentration Units: Molarity
Subject Chemistry
Chemistry
Source Originais Teachy
Originais Teachy
Topic Concentration Units: Molarity
Concentration Units: Molarity
Difficulty Medium
Medium
(Originais Teachy 2023) - Question Medium of Chemistry
You have been hired as a chemist in an industry and your first task is to prepare a solution for application in an industrial process. To do this, it is necessary to make an aqueous solution with a concentration of 0.5 mol/L of sodium chloride (NaCl). Your team has a 1-liter volumetric flask and a bottle of pure sodium chloride. (a) Determine the mass of NaCl needed to prepare the solution. (b) Explain the procedure to be followed to prepare this solution. (c) If necessary, how would you prepare a solution with half of this concentration, while keeping the volume at 1 liter?Answer sheet:
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices. Sed non sem ultricies, sollicitudin sem facilisis, commodo justo. Maecenas mattis sodales nunc, et auctor massa fermentum a. Maecenas eget nisl felis.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices.
Answer sheet
You need to be a registered teacher to view the answer sheet
IARA TIP
Are you putting together a test or exercise list?
On Teachy’s platform, you can automatically generate these materials without spending hours searching for questions 😉
Those who viewed this question also liked...
Question
Question
Difficulty Medium
Source:
FUVEST
Organic Functions: Carboxylic Acid
Difficulty Medium
Question
Question
Difficulty Medium
Source:
UNICAMP
Chemical Equilibrium
Difficulty Medium
Question
Question
Difficulty Very Hard
Source:
Teachy
A chemical laboratory received a sample of a new metallic oxide, and the scientists must determine the chemical formula of the compound based on its properties. The sample reacts with water, forming an acid that, when analyzed, reveals the presence of hydrogen and a metal that behaves as a divalent metal in its reactions. Additionally, the sample reacts with diluted hydrochloric acid, forming a metal chloride and water. If the mass of the metal present in the sample is 27g, determine the chemical formula of the metallic oxide and explain the reasoning used, including the nomenclature of the compounds found.
Inorganic Functions: Oxide Nomenclature
Difficulty Very Hard
Question
Question
Difficulty Easy
Source:
Teachy
The addition reaction is a chemical reaction that occurs between two or more reactants and produces a single product. This reaction is characterized by the addition of a functional group to another, the latter usually being an alkene. Which of the following substances is an alkene?
Organic Functions: Hydrocarbon Nomenclature
Difficulty Easy
Join a community of teachers directly on WhatsApp
Connect with other teachers, receive and share materials, tips, training, and much more!
We reinvent teachers' lives with artificial intelligence
Materials
2023 - All rights reserved