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A change in what property permit certains materials to act as indicators?
A change in color properties allows certain materials to act as indicators. For example, pH indicators change color in response to the acidity or alkalinity of a solution, making them useful tools for determining the pH level of a substance.
What is a standard solution and how is it used in titration?
A standard solution is a solution with a known concentration of a substance. In titration, a standard solution is used to determine the concentration of another substance by reacting the two solutions until a chemical reaction reaches completion. The volume of the standard solution needed to react completely with the unknown solution is used to calculate the concentration of the unknown substance.
What is the purpose of adding an indicator to an unknown solution?
Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution
An unknown substance is added to a solution and the pH increases The substance is best described as what?
The substance is likely a base, as bases typically lead to an increase in pH when added to a solution. Bases are substances that can accept protons or release hydroxide ions, causing the solution to become more basic.
What is titrate?
Titrate is a process used in chemistry to determine the concentration of a substance in a solution. It involves slowly adding a solution of known concentration (titrant) to another solution until a reaction is complete, allowing the concentration of the unknown substance to be calculated.
A change in what property permit certains materials to act as indicators?
A change in color properties allows certain materials to act as indicators. For example, pH indicators change color in response to the acidity or alkalinity of a solution, making them useful tools for determining the pH level of a substance.
What is a standard solution and how is it used in titration?
A standard solution is a solution with a known concentration of a substance. In titration, a standard solution is used to determine the concentration of another substance by reacting the two solutions until a chemical reaction reaches completion. The volume of the standard solution needed to react completely with the unknown solution is used to calculate the concentration of the unknown substance.
What is the purpose of adding an indicator to an unknown solution?
Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution
An unknown substance is added to a solution and the pH increases The substance is best described as what?
The substance is likely a base, as bases typically lead to an increase in pH when added to a solution. Bases are substances that can accept protons or release hydroxide ions, causing the solution to become more basic.
What is titrate?
Titrate is a process used in chemistry to determine the concentration of a substance in a solution. It involves slowly adding a solution of known concentration (titrant) to another solution until a reaction is complete, allowing the concentration of the unknown substance to be calculated.
An unknown substance placed into a solution caused a chemical reaction to take place faster and at a lower temperature than usual The substance was probably?
a catalyst
How do you test for monosaccarides?
You place Benedict's solution (blue solution) and the unknown substance (possibly containing monosaccarides) into a beaker and then heat it for approximately 5 minutes. If the substance contains monosaccarides, the solution will turn from blue to orange.
What unknown quantity can be calculated after performing a titration?
Titrations can be used to work out the initial amount of moles of a substance (for instance the number of moles of iron in a tablet).
How can you test an unknown crystalline substance to determine whether it is table salt?
You can test the unknown crystalline substance by performing a taste test (table salt is salty), checking its solubility in water (table salt dissolves easily), and conducting a flame test (table salt will produce a yellow flame).
How to use stoichiometry determine the concentration of a substance?
To use stoichiometry to determine the concentration of a substance, you need to first balance the chemical equation for the reaction involving the substance. Next, determine the moles of the known substance and use the balanced equation to relate it to the moles of the unknown substance. Finally, calculate the concentration of the unknown substance in terms of moles per liter based on the volume of the solution.
Is sodium hydroxide unknown solution?
Sodium hydroxide is not an unknown solution.
What is the purpose of titration?
The process of Titration is used to determine the unknown concentration of a known reactant, such as acid. It is used industially to find the strength of acid so it can be used for other things.
