38. A potassium chloride (KCI) solution containing 30g/100g of water at 10°C is warmed to 40°C. What mass of potassium chloride can we add to saturate the solution at the new temperature?

Q: conclusion about analysis in vinegar by titration

A: Generally Vinegar contains Acetic acid ( CH3COOH) For determining the molar concentration of Acetic…

Q: determine

A: We can do that by checking the polarity of the compound as like dissolved like polar compounds…

Q: Ethanol and potassium permanganate titration and equation

A: Volumetric titration is a type of quantitative analysis in which the concentration of unknown…

Q: Record the observations in the tabular column below. Sample Name For pH Paper For Universal…

A: The scope of pH is between the pH 0 to pH 14 scale, where underneath pH 07 is considered as acidic,…

Q: First Slide: Title of Slide should be testing acids and bases. A chart should follow. The first…

A: pH is the measure of acidity or basicity. Various method used to determine pH of the substance.  1.…

Q: When do we need to perform a double-indicator titration procedure?

A:

Q: A substance that changes color to signal the end of a titration procedure is called:   a. an…

A: In titration we used a subtance that helps to locate the end point I.e. the end of titration…

Q: what is the ionic percentage by using the formula for a) Ge b) GaP c) InGaAsP d) HgCdTe

A: NOTE- Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: What happens when the blade was placed on the detergent solution? What is the effect of the…

A: When the blade is placed on the detergent solution it sinks  in the solution because the detergent…

Q: how to get the 0.571 M and 0.071 M?

A: Given,  Molarity of HCl = 1.0 M  Volume of HCl in L = 1.00 L  Molarity of NaHCOO = 1.5 M  Volume of…

Q: What happens to the pH paper when dipped in sprite, coke, hydrochloric acid dil and fanta soda

A: Concept: pH paper: pH paper is used to determine the nature of a solution whether ot is a acidic,…

Q: Cite some advantages of using the pH paper than the pH meter and vice versa.

A: pH paper and pH meter both are use to determine the acidity of the sample.

Q: Which of the following is the characteristic of a nonelectrolyte solution? a) Completely ionized in…

A: Non electrolyte is defined as a solute or compounds that do not ionise in a solution at all. Non…

Q: 4. A 850.0 mL sample of HCl(aq) is prepared and has a pH of 1.123. What mass of HCl(g) is dissolved?…

A:

Q: I have a 30 mL supernatant solution and we will add 3 volume of ethanol to precipitate. Question:…

A: The solution of the question is given below:

Q: 1.Method for Acid-Base titration experiment.

A: Acid base titration is the titration of acid with base.

Q: When calculating your equivalent mass of the unknown organic acid, the volume used in your titration…

A: We know that, Equivalent mass = Molar mass / valency Molar mass = Mass / No of moles No of mole =…

Q: In this experiment you will do qualitative analyses to determine the identity of unknown compounds.…

A: Qualitative analysis is an analytical method used to identify the components of the unknown sample…

Q: Why we need to analyze the cations?

A: Answer - Cation analyze - A cation has more protons than electrons, consequently giving it a net…

Q: Suppose you are titrating an acid of unknown concentration with a standardized base. At the…

A:

Q: Use the References to access important values if needed for this question. What is the pH of an…

A: The pH of a solution refers to the measure of the molar concentration of the H+ ions that are…

Q: 0.1982 grams of an unknown organic acid was dissolved in about 50 mL of water in a 250 mL Erlenmeyer…

A:

Q: acetylsalicylic acid + sodium hydroxide ---> sodium acetylsalicylate + water  You have a sodium…

A: Given : Normality of NaOH i.e sodium hydroxide = 0.1231 N And the balanced reaction taking place is,…

Q: At the end of an acid-base titration, the products in the beaker are always a and liquid

A: At the end of an acid-base titration, the products in the beaker are always a salt and liquid water.…

Q: Procedure: B. Test for carbonate ion (CO,²) Add 1 mL of 1M Na2CO3 (or your unknown) and 1 mL of 6M…

A: Different tests are given.Determine the experimental and theoretical results.An anion is defined as…

Q: At the equivalence point…  the titrant is limiting the analyte is limiting the titrant and analyte…

A: Answer

Q: How many indictors using in alkalinity titration. O Three. O Two. O Four.

A: Given that : We have to identify the number of indicators used in alkalinity titration.

Q: Which 0.500 M solution will be the least conductive? Choose all that apply.Choose one or…

A: The conductivity of a solution is directly proportional to the number of ions present in the…

Q: Question 3.When mixing 40 mg of a medication in 100 ml total solution, the resulting strength is ???

A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution.

Q: Discuss the other equations use for a weak acid or weak base and its salt.

A: Weak Acid: Those acids which are not completely dissociated into ions when they dissolve in water…

Q: In graph A, the end point occurs at r pH of 7 volume of 25 mL In graph B, the equivalence point…

A:

Q: B. Fill in the following chart: Type of solution Behavior in water|pH range Example Neutral Acid…

A: The species which releases H+ ions in solution on dissociation are termed as acid. The species…

Q: If an uknown concentration 25.00 mL HCl consumes 20 mL of 0.123 M NAOH to reach endpoint, calculate…

A: Given :-  Volume of HCl solution = 25.00 mL  Volume of NaOH solution = 20 mL  Molar concentration of…

Q: Which of the following is consider as weak electrolytes? Select one: a. sulfuric acid b. Nitric…

A: Weak and strong electrolytes depend on ionisation in an aqueous solution.

Q: I would like to know how can I a brief discussion about calcium titration please

A:

Q: explain why percent of ionization should be less than 100%

A: The percent of ionization is a measure of the extent to which a compound or molecule dissociates…

Q: What are the errors affecting pH measurements?

A: pH is a logarithmic measure of the hydrogen ion concentration of an aqueous solution. pH tells…

Q: What is the concentration of an HNO3 solution in percent by mass that was determined to have a…

A:

Q: 1. A substance that shows the endpoint of titration  2. Type of error in which the volume delivered…

A: The questions are related to the titration and are solved in the following step.

Q: List serval official substance that are required to show no turbidity when tested for chloride and…

A: The suspended materials and the inorganic substance that can be measure is called as turbidity and…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.