Express in percentage the fluoride concentration in drinking water given in 0.6 ppm.

Q: Calculate the pH of a solution in which [OH−]=7.1×10−3M.

A: The pH of a given solution can be termed as a measure of its basicity or acidity. It is a measure of…

Q: Calculate the pH of 2.50M acetic acid, HC2H3O2(aq). (Ka = 1.8 x 10-5)

A: The ICE table are utilized to figure out the hydrogen ion's concentration. With the help of hydrogen…

Q: How the aqueous chemistry of amphoteric hydroxides involves precipitation, complex-ion formation,…

A: The aqueous solution is the one in which the solvent is water. Different chemical reactions can be…

Q: 2. A 55-year-old patient was admitted to the hospital with shortness of breath and cough. Rapid…

A: A buffer is a solution that can hold the pH of the solution at a certain value when small amount of…

Q: What is the pH of a 1.00 x 10^-9 molar solution of CaCl2?

A: Given :  Concentration of CaCl2 = 1.00 x 10-9 M

Q: Express the concentration in % w/v that is equivalent to 0.5 M NaOH solution.

A: Given,

Q: d. During the fermentation of wine, a buffer system consisting of tartaric acid and potassium…

A: Given that, during the fermentation of wine, a buffer system consisting of tartaric acid and…

Q: When fermentable carbohydrates are left in the mouth, bacteria in the mouth produce an acid with a…

A: The formula of hydronium ion is H3O+. pH is the negative log of hydronium ion concentration. The…

Q: Using paleolimnological methods it is possible to estimate past pH values of surface waters. If the…

A: Solution: Given that pH of surface water using paleolimnological method is 5.787 So, pH = -log[H+]…

Q: What is the pH of a 1.00 x 10^-9 molar solution of MgCl2?

A: The pH of a 1.00 x 10^-9 molar solution of MgCl2 is given below

Q: What is the pH of a 0.21 M solution of methylamine (CH3NH2, Kb = 4.4 x 10–4) at 25 degrees C?

A:

Q: The concentration of hydronium ion in a sample of a solution is 4.5 x 10-3 mol/L. What is the pH of…

A: pH of any solution is given by the following equation, pH=-logH3O+

Q: a) Arrange the following ions in order of increasing acidity in aqueous solution: Fe3+. Na+, Mn2+.…

A: Fazan's rule helps to determine whether the compound is ionic or covalent. The postulates of Fazan's…

Q: 2. Describe the alkaline error in the measurement of pH. Under what circumstances is this error…

A: The answer to the following question is-

Q: Formulate the acid-base reactions with ions, mark conjugate acid-base pairs of the reaction of…

A: Note- The product formed is ethyne and not ethene. Chemical formula of calcium carbide- CaC2…

Q: What is pH of a 0.1 Molar solution of oxalic acid in water

A: Given : Concentration of oxalic acid i.e H2C2O4 = 0.1 M The Ka1 and Ka2 of oxalic acid are 5.0 X…

Q: Iron in drinking water is removed by precipitation of the Fe3+ ion by reaction with NaOH to produce…

A: Iron reacts with NaOH to produce iron (III) hydroxide. Here iron is in the form of Fe3+ion. The…

Q: What is the pH of a substance with a hydrogen concentration of 3.0 x 10-12?

A:

Q: In the laboratory, a general chemistry student measured the pH of a 0.353 M aqueous solution of…

A: In order to find the Kb of the given compound we first write down the given data: pH= 12.146.…

Q: Calculate the pH of a 4.2M solution of hypobromous acid.

A: Ka is the ratio of  product of concentration of products raised to their stoichiometric coefficient…

Q: Explain the chemical properties of acidic solutions and alkaline solutions taking into consideration…

A: Acids are sour in taste. Acids react with carbonates and hydrogen carbonates to form a salt, water,…

Q: What is the maximum [CO1 that can exist in a 1.8 x 10 M AGNOS solution?

A: The Ag+ ions coming from both AgNO3 and Ag2CO3 are to be considered for the calculation. As shown…

Q: The balanced molecular equation for complete neutralization of H 2SO 4 by KOH in aqueous solution is

A: When an acid reacts with a base it produces salt and water. Such reactions are known as acid-base…

Q: At the freezing point of water, Kw = 1.2 x 1015, What is the pH of ice water?

A:

Q: Write the net ionic equation for the acid-base hydrolysis equilibrium that is established when…

A:

Q: Discuss and give a reason for the pollution problem associated with acid rain?

A: Compounds like sulphuric acid and nitric acid mix together in the atmosphere and then falls on the…

Q: Calculate the pH of a 2.61 mol/L solution of ammonium hydrogen carbonate, NH4HCO3

A:

Q: Place the following acids in order of increasing strength: -H​3P​O​4,​ H3P​O​2​ and H3P​O​3.​…

A: We have to explain the acidity order: -H​3P​O​4,​ H3P​O​2​ and H3PO3.

Q: The substance morphine is a weak nitrogenous base like ammonia. Write a net ionic equation to show…

A: The compound which accept H+ is known as base.  Here morphine is base.

Q: Calculate the pH of a solution prepared by dissolving 0.150 mol of acetic acid and 0.300 mol of…

A:

Q: Why is rainwater naturally acidic, even in the absence ofpolluting gases such as SO2?

A: Acidic substances are those substances that have a pH value is in the range of 0 to 7. When the…

Q: Phosphoric acid (H,PO4) is a polyprotic acid. Write balanced chemical equations for the sequence of…

A: Polyprotic acid are a class of acids , which contains more than one protons in one molecule and the…

Q: The molar concentration of H3O+ ions in the following solutions was measured at 25 °C. Calculate the…

A: pH is used to measure acidity or basicity of an aqueous solution. pH of any solution can be…

Q: The concentration of hydroxide ions, OH¯(aq), in a solution at 25C is 0.150 mol/L. Determine the…

A:

Q: Calculate the percentage of pyridine (C,H,N) that forms pyridinium ion, C,H,NH", in a 0.10 M aqueous…

A: The percentage of pyridine that forms pyridinium ion is given below

Q: Acidic water can be treated with basic substances to increase the pH, although such a procedure is…

A: Given Volume of lake = 4x109 L The pH of lake water = 5 -log [H+] = 5 [H+] = 10-5 Therefore the…

Q: Given that methylamine, CH3NH2, has a Kb of 4.4 x 10-4, what is the pH of a 0.20 M aqueous solution…

A: For weak base CH3NH2 : [OH-] = Kb×C          = 4.4×10-4×0.20           = 9.38 x 10-3 M pOH = - log…

Q: What is the pH of a 0.060 mol L-1 Ba(OH)2(aq) solution?

A: Given,  0.060 mol L-1 or 0.060 M Ba(OH)2(aq)

Q: Calculate the amount of lime (85% pure) and soda (95% pure required for the treatment of 10000 litre…

A:

Q: 11. K/U Determine the pH of a 0.35 mol/L hydrocyanic acid solution, HNC(aq), prepared by a research…

A: Concentration of HCN = 0.35 mole/L Ka(HCN) = 6.2 × 10-10

Q: The ionization constant, Ka, for dichloroacetic acid, HC2HO2Cl2 , is 5.0 × 10‑2.  What is the pH of…

A: The ionisation reaction for the  dichloroacetic acid will be  HC2HO2Cl2 ------> H+ + C2HO2Cl2-…

Q: Write the equilibrium for the autoionization of sulfuric acids (H 2 SO 4 ) and write the expression…

A: Equilibrium expression for autoionisation of sulphuric acid

Q: Assuming the base completely dissociates in water, what is the pH of a 5.20 g/L solution of Ba(OH)2…

A: pH is basically the negative logarithm of concentration of H+ and it is given by the formula:…

Q: A 0.495 M solution of a weak base has a pH of 11.00. What is the base hydrolysis constant, Kp, for…

A:

Q: Would you expect an aqueous solution of manganese (VII) oxide to have a ph greater or less than 7.0?…

A: Oxidation state is the number of electrons that are either gain or lose by an atom in a chemical…

Q: The value of K, for acetylsalicylic acid (aspirin) is 3.00x104. What is the value of Kp, for its…

A: Ans. 3.33*10-11

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.