Define the term hollow-cathode lamp used in chemistry. What is a standard solution? Describe the steps involved in preparing a standard solution. Explain why standard solutions are prepared for volumetric analysis. Define and illustrate the term clearly and concisely primary standard. What is the pu...
What are the classifications of solutions?SubstancesIn chemistry, substances (or chemicals) can come in a variety of physical forms. Examples of these include solid and liquid-form, or a combination of the two (i.e., a solution), such as saltwater or saline....
Heterogeneous Mixtures - the (two or more) substances that form the mixture are not evenly distributed throughout the mixture, e.g. oil and water. Solutions - special type of homogeneous mixtures in which one substance (called the 'solute') is dissolved in another substance (called the 'solve...
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0.01 M HCl is an unsaturated solution of hydrochloric acid in water. Key Takeaways: Unsaturated Solutions In chemistry, an unsaturated solution consists of solute completely dissolved in solute. If no additional solute can dissolve in a solution, that solution is said to be saturated. ...
What Does “mM” mean in Chemistry? Explanation: Millimolar (mM) concentrations are often used for convenience when working with solutions of small quantities of substances. One millimolar (1 mM) is equal to one-thousandth of a mole per liter (1/1000 mol/L).If a solution has a 5 millimol...
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Essentially, back titration is a titration done in reverse. The person performing the titration does not titrate the original sample; instead, they add a known excess of standard reagent to the solution, with the excess then being titrated. Back titrations are useful if the reaction between the...
Chemistry is all about states of matter, including liquids, solids, and gases. It is all about how different materials are put together and made up of atoms and molecules. Additionally, chemistry is how these materials act under different conditions. Slime is a non-Newtonian fluid. A non-...