An unknown liquid has a vapor pressure of 88 mmHg at 45°C and 39 mmHg at 25°C. What is its heat of vaporization? 2000 kJ/mol 32,000 kJ/mol 2000 J/mol 32 kJ/mol

Q: Which of the following is an acidic salt?* OKNO3 O SrCl2 O CuCl2 Ba(CH3C00)2

A: Acidic salts are the ones which produce acidic solution when dissolved in solvent. Acidic salts are…

Q: (f) Potassium permanganate (g) Sodium hypochlorite (h) Beryllium bicarbonate (1) Ammonium dichromate…

A:

Q: Calculate the pH of the solution after the addition of each of the given amounts of 0.0597 M HNO, to…

A: Since we only answer up to 3 sub parts, we'll answer the first three. Please resubmit the question…

Q: Hldes if heeded for this question. The pH of an aqueous solution of 0.274 M sodium acetate, NaCH3COO…

A:

Q: Some chemical reactants are listed in the table below. Complete the table ba oxidation state of…

A: Check the oxidation state of an element and find out the oxidation state of C in CHCl3.

Q: Calculate the pH of a weak base solution (quadratic equation). Calculate the pH of a 0.0149 M…

A: Answer:-This question is answered by using the simple concept of calculation of pH of an aqueous…

Q: Write the balanced chemical equation for conversion of Al(s) to KAl(SO4)2·12H2O(s) in aqueous…

A: Alum is a double salt. The chemical formula of alum is: KAl(SO4)2∙12H2O(s) Alum is used as a mordant…

Q: According to the crystal field theory for complex ions and molecules, tetrahedral geometry always…

A: Given above statement is true or false ?

Q: Given compound (d), what is the reducing agent? * iron sulfur chlorine O hydrogen охудen

A:

Q: In what for would iron be determined by visible spectroscopy

A: Uv-Visible spectroscopy :-     Ultraviolet-visible spectroscopy refers to absorption spectroscopy or…

Q: Talk about the indicator in titration involving iodine. Comment on it's chemistry, how much of it is…

A: The indicator used in titration involving Iodine is STARCH.

Q: In the equilibrium between guanidine and the guanidinium ion, which form is the ionized form and…

A: Guanidine is a strong base and abstract acidic proton to form its conjugate acid ,i.e Guanidium…

Q: Determine the physical states for the products and then determine which factor does NOT drive…

A: When reactants combine together to form the products, the states of the products can get changed due…

Q: What does the silver chloride precipitate before the

A: THE REACTIVITY  OF CHROMATE ANION WITH SILVER IS LESS THAN HALIDES THEREFORE IN A MIXTURE OF OF BOTH…

Q: In a chemical reaction, a student mixes two colorless solutions, Solution A and Solution B, and…

A: The observed discrepancy in the formation of a green precipitate in two consecutive experiments…

Q: What is the [Cl-] formed whan 12.5g of BaCl2 is dissolved and diluted to 0.800L ?

A: The mass of BaCl2 is = 12.5 g The volume of the solution is = 0.800 L The concentration of chloride…

Q: statement that correctly describes the hydronium-hydroxide balance?

A: Given : We have to explain statement that correctly describes the hydronium-hydroxide balance.

Q: What is standard solution ? Why is a standard solution necessary for titration?

A: Standard solution is the solution of known concentration. It is prepared from a primary standard (a…

Q: Why is there a need for buffers? Please explain in depth and detail

A: A buffer solution is a solution that can withstand changes in pH on  addition of acidic or basic…

Q: In a solution of 0.015 mol L-1 HBr(aq) at 25 °C (a) What are the concentrations of the hydronium,…

A: pH stands for the potential of hydrogen ion concentration or power of hydrogen. The pH of an aqueous…

Q: Which of the following is correct concerning the base ionization constant, Kp, of dimethylamine,…

A: Ionization of amine is water.

Q: Estimate the pH of 0.010 M NaCH3CO2(aq).

A:

Q: Cite

A: Buffers play an important role in pharmaceutical science, as they are known to resist the small pH…

Q: For C6H5NH3, enter an equation that shows how the cation acts as an acid. Express your answer as a…

A: Bronsted Lowry acid: It donates proton (H+ ion) to other compounds and form conjugate base.

Q: Given compound (d), how much electron/s was/were gained by the oxidizing agent? (Please upload your…

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Q: A buffer solution is 0.444 M in  and 0.251 M in . If  for  is  , what is the pH of this buffer…

A: I was provided the solution for this problem, I hope it will helps you. Explanation:Step 1:

Q: What kind of acid can be consider the central metal atom and why? Is there any base around central…

A: In coordination compound, there is a central metal atom and a ligand which are bonded together by…

Q: The principal anion and cation of Lake Huron, one of the Great Lakes in North America, are,…

A: Millimole per liter (mmol/L)- This unit is used to determine amount of substance concentration.…

Q: NH4Cl is an acidic salt. Explain

A: Ammonium chloride (NH4Cl) is an "acidic salt", this is formed by the neutralization of a weak base…

Q: What is the correct IUPAC name for V(IO,),?

A: V(IO2)4 V4+ = vanadium(IV) IO2- = iodite   IUPAC Name = vanadium(IV) iodite

Q: When we say that two titration curves are a mirror image of one another, what do mean? They are…

A: The correct answer is to be identified.

Q: hat is buffer capacity, and when it is largest

A: The pH of the solution determines the concentration of H+ in the solution. A higher value of pH…

Q: Mention the action of the following on the human body in bringing relief from a disease. (i)…

A:

Q: Write the net-ionic neutralization reaction that occurs when HI (aq) is added to the buffer solution…

A: When an acid is added to acidic buffer solution .it reacts with salt of buffer solution and gives…

Q: The pH value of ammonium acetate solution is --- 7

A: sodium acetate (CH3COONa) is a salt of strong base (NaOH) and weak acid (CH3COOH) NaOH + CH3COOH…

Q: What precautions should be taken when conducting the chloride test in boiler water?

A: The chloride test in boiler water is a critical analytical procedure used to determine the…

Q: What equation is used in calculating the pH of buffers? What expression does this equation derive…

A: Buffer Solution is a water-based solution that consists of a mixture of a weak acid and its…

Q: Which Nitrogen containing compound is the most basic? B None of these OC (A) A H-CEN (B) NH4 (C) N.…

A: Lone pairs which are easily available for donation of electrons are considered as basic in nature.…

Q: hen dissolving iron in di

A: Given that Iron is firstly dissolved in Hydrochloric acid and then NaOH solution is added to the…

Q: 2. When a metal complex ion is formed in solution, what are the metal ion and ligands acting as? * O…

A: The metal ion complexes are formed in a solution by the interaction of the metal and ligand. The…

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.