Complete precipitation of group III cations is assured by keeping the solution O slightly alkaline acidic O decidedly alkaline O slighty acidic A weak oxidizing agent used for the determination of strong reductar

Q: You are now to research the relationship between dental cavities (also known as dental caries) and…

A: Ans. Relationship between dental cavities and use of fluoridated toothpaste: The use of fluoride in…

Q: Practice Exercise Calculate the pH at the equivalence point in the titration of 50 mL of 0.10 M…

A:

Q: Calculate the work (J) of the system when the ideal gas expands at constant pressure of 2.480 atm…

A: Work done at constant pressure is given by  W = -P∆V ........(1) W = work done = ?  P = pressure =…

Q: Which will have the lowest Bp? 1. Ne 2. Ar 3. He 4. Kr

A: Boiling Point: The temperature at which the pressure exerted by the surroundings upon a liquid is…

Q: 1. Name the following compounds: (a) OH OH (b) OH (c) HỌ. CH2CH2CCH3 CH3CHCH2CHCHCH3 ČH3 -CH3 CH3…

A: For naming we will use IUPAC rule. Pka is inversely proportional to the acidity.

Q: The Van't Hoff equation estimates the Ws of a solution. True O False

A: Applications of the an't Hoff equation

Q: Nitrogen dioxide is one of the many oxides of nitrogen (often collectively called "NOx) that are of…

A: This question is from chapter Chemical Equilibrium. We will calculate the moles of dinitrogen…

Q: A reaction between liquid reactants takes place at -7.0 °C in a sealed, evacuated vessel with a…

A: Given: The mass of CO gas = 13 g The volume of the vessel = 20.0 L Temperature = -7.0 ∘C We have to…

Q: Based on the master formula, the amount of camphor for a liter preparation is 60 g. How much camphor…

A:

Q: original bond energy of a dipole-dipole interaction is 20 kJ/mole. If the bonding partners change…

A:

Q: 9. The rotational spectrum of HCN is in far-infrared region, one part is 2.96 cm", 5.92 cm", 8.87…

A:

Q: What mass of KCl is in 350 mL of 0.24 M KCl?

A:

Q: Twenty grams of potassium dichromate (K2Cr207) is dissolved in 150 mL of water. The solution was…

A:

Q: Directions: Provide what is being asked in each of the following items. Show a complete solution.…

A: ✓About Aspirin ✓It is also known as acetyl salicylic acid used to reduce pain,fever or inflammation.…

Q: IUPAC name for this?

A:

Q: Chemistry Question: If the sodium chloride is to be precipitated with 0.100 M AgNO3 calculate the…

A:

Q: Br Br + CH, OCH,CH, H;C ČH, one step synthesis, the class is organic chemistry fundamentals, so the…

A:

Q: Rh(PPh3)3Cl] is a precatalyst that can be activated by dissociation of a phosphine ligand to form an…

A:

Q: What is the connection between Hess's law and the fact that enthalphy is a state function?

A: Chemical thermodynamics is branch of chemistry in which we deal amount of heat evolved or absorbed…

Q: Which of these is critical point data of water? a) 373 K and 220 atm b) 373 oC and 220 bar c)…

A: Critical point is the condition at which the liquid and gaseous phase become similar or identical.…

Q: Infrared thermometers measure heat emitted from surfaces in the infrared range of the EMR spectrum.…

A: Relation between frequency and wavelength would be used .

Q: P3.2. Calculate AS (in J K-1) when the state of 2.0 mol diatomic ideal gas is changed from 25 °C and…

A: Temperature and pressure are changed here , so we would use formula to calculate ∆S .

Q: Can this happen: OH Natt

A:

Q: Part A The calcium ion Ca2+ has charge +2e, so equation for the Nernst potential must have e…

A: The solution is given below -

Q: Propionic acid is provided (pKa - 4.0) to make a 0.8 M buffer at pH = 6.0. What is the ratio of…

A:

Q: (a) Analyze SNl or Sx2 is preferred in the reaction below. Explain your choice and express the…

A:

Q: If a 1-molal solution of NaCl in water shows a freezing-point depression of 3.7 oC, what is the…

A: Given,  Molality of NaCl solution = m = 1 molal  Freezing-point depression = ΔTf = 3.7 oC What is…

Q: A student is asked to make up a 16% sodium chloride solution. She makes the solution by weighing an…

A: Given :  Weight of empty beaker = 98.5 gm  Weight of the beaker and sodium chloride = 114.71 g…

Q: Propionic acid is provided (pKa = 2.0) to make a 0.1 M buffer at pH = 2.0. What is the ratio of…

A:

Q: What is the predicted major product of the reaction shown? H3O* Br2

A:

Q: if the molarity of calcium hydroxide is [0.200] what is the pH?

A: One mole calcium hydroxide gives two mole of hydroxide ion

Q: Your pure water boils at 100.00 C. You add some sugar into it and now it boils at 101.20C. What is…

A: Given,  Boiling point of pure water, Tb° = 100.00 °C  Boiling point of solution, Tb = 101.20 °C  Kb…

Q: Classify each of the following species as a Brønsted acid or base, or both: (a) H,0, (b) OH¯, (c)…

A:

Q: include the state of each species: (s), (!), (g), or (aq). 1. As,S3) + H2020 3- → AsO4° (aq) 2- +…

A: Given reaction is, As2S3(s)+H2O2(l)→AsO43-(aq)+SO42-(aq) (acidic medium) Reduction occurs as,…

Q: What would be the formula for an ionic compound composed of the ions    X2+  and   Y1− ?What would…

A: Ionic compounds can be defined as the compounds containing ionic bonds.ionic compounds contain ions

Q: A solution contains 43 mEq/L of Cl- and 11 mEq/L of HPO42-.  If the only cation in the solution is…

A: An equivalent for an ion is calculated by multiplying the number of mole of that ion by its valence.

Q: A 2.00-L glass soda bottle filled only with air is tightly capped at 34°C and 744.0 mmHg. If the…

A:

Q: How many steps in the mechanism of this reaction?

A: Number of steps in the mechanism of given reaction = ?

Q: How many mols of solute are in 125mL of a 2.0M hydrochloric Acid solution?

A: Molarity is defined as the number of moles of solutes present in per litre of solution.

Q: H H, .F CH3 H3C. H H. H. H3C CH3 H I II III I-

A: The stability of the given compound in increasing order of:

Q: describe what happens to a reversible reaction as it attains equilibrium. Answer using 3 to 5…

A:

Q: At STP how many liters is four moles sulfur dioxide gas occupy

A: Mole can be defined as the standard unit for measuring large quantities of very small entities such…

Q: 2. For each of the reactions below, give the structure(s) of the product(s), and be sure to indicate…

A: In the above questions, we have to find out the structure of given reaction.

Q: At what time in the future will only 50% of nature's perfect supply of Rn-266 with a half-life of…

A: The half-life of an element is the time taken for half of the total number of atoms present to…

Q: Name the functional group in each compound. [K: /5) 1. CH,=C-CH,CI CH, 2. CH,CHCH,CH, он 3.…

A:

Q: A diprotic base (B) has pK, values of 3.33 (pK5i) and 6.66 (pK2). Which of the equalities is true…

A: Here we have to determine the predominant species of a diprotic base B at different pH. Given pKb1=…

Q: Chemistry 6. When heating the N, molecules in plasma, we can observe the ratio of particle numbers…

A:

Q: Q4) Explain the alloy formation process and the different between Binary and Triple or (Ternary)…

A: An alloy is a mixture of chemical elements of which at least one is a metal. An alloy is a metal…

Q: (a) Magnesium (Mg) has a hexagonal close-packed (HCP) crystal structure with the lattice parameter…

A: The parameters for the HCP crystal structure are given as: a=b=0.321 nm c=0.521 nm r=0.173 nm

Q: lowing molecules classify them as aromatic, antiaromatic, or nonaromatic. II romatic; I| =…

A: Organic compounds can be defined as the compounds that contain carbon and hydrogen atom in a…