Explain why nitric acid is used for the digestion of samples in AAS

Q: Explain the following terms with a suitable example for each:(i) Disinfectants(ii) Antacids(iii)…

A: i) Disinfectants are those chemical agents which are designed to inactivate the microorganisms on…

Q: How many grams of Pb(NO3)2 (331.2 g/mol )are needed to prepare 300 ppm (w/v) of Pb (207.2 g/mol) in…

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Q: What happens : (a) When animal charcoal is added to a solution of methylene blue dye. (b) When…

A: a) When animal charcoal is added to a solution of methylene blue dye. when animal charcoal is added…

Q: Identify the molecule that is the source of oxygenatoms for O 2 production during photosynthesis.

A: Identify the molecule that is the source of oxygen atoms for O2 production during photosynthesis.

Q: Discuss the functions and regulation of sodium, chloride, potassium, bicarbonate, calcium,…

A: Given ions sodium, chloride, potassium, bicarbonate, calcium, phosphate, and magnesium  are present…

Q: Discuss the structure and function of ion channels and describe their importance in medicinal…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: supplement

A: Calcium carbonate has a chemical formula CaCO3. It is a common substance found in rocks and…

Q: Dehydration plays a role in the formation of kidney stones composed of calcium oxalate, CaC2O4. Why…

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Q: ammonium hexacyanoferrate(III). Draw structures

A: The compounds containing one or multiple metal atoms called central metal atoms that are attached to…

Q: What mass of NaHCO3 must decompose to produce 448 grams of Na2CO3?

A: The balanced equation for the decomposition of NaHCO3 is: 2NaHCO3→Na2CO3+H2O+CO2

Q: Mg with HCl  what is the chemical equation for the reaction and balanced? Type of reaction?

A: Redox reaction: A redox reaction is that in which one element is being oxidized by loss of…

Q: what are the main components of Volatile oil

A: Volatile oils are present in every spice and under normal temperature conditions, they evaporate…

Q: Crystal: Calcium oxalate or calcium phosphate in kidney stones If it is something harmful, what can…

A: Calcium oxalate: An excess amount of oxalate can combine with calcium in the urine and cause kidney…

Q: What mass of Hydrazine reacts with 250mL of 0.146M H2SO4

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Q: O It creates hydrogen bonds with the fabric O It kills stains O It allows dyes to indirectly bond…

A: Mordants are chemical substances that are used to form co-ordination complex with dye which then…

Q: Explain why thallium(I) fluoride is very soluble in water but other thallium(I) halides are much…

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Q: The balance of water in the body takes into account the intake of food, liquids and: a. the hydrogen…

A: Correct option is c. That is metabolic reactions.  Incorrect option are: a. the hydrogen bridges…

Q: Provide the name of thge structure

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Q: Preparation of Volatile Binary Acids (Gases) 15) NaCl observation on litmus.... 16) Equation....

A: Litmus paper is used to test whether the solution is acidic or basic. Acid solution turns blue…

Q: How to prepare 0.1 M of NiSO4? How many grams is needed?

A: Given, the concentration of NiSO4 =0.1 Mwe have to calculate the amount of NiSO4 needed to prepare…

Q: What is the precipitate formed from the reaction of permanent hard water with sodium carbonate?…

A: Permanent hardness of water is due to very soluble magnesium sulfate and slightly soluble calcium…

Q: Which of the attached molecules can hydrogen bond to anothermolecule like itself?

A: Given:-              Which of the attached molecules can hydrogen bond to another molecule like…

Q: pka : 8.5 WH₂ OH (C) ( 13 ) pka 24.5 compound is likely to be least Soluble a+ pH = 6.5 which which…

A: Acids dissolve in bases and bases dissolve in acids as they react with each other. Lower the value…

Q: Calaculate the molar mass of CaCO3?

A: Molar mass of CaCO3 ?

Q: 17. What is the type of the following reaction? 2HgO) 2Hgm + O2(2) The answer is

A: When a compound breaks in two or more smaller substances then such reactions are called…

Q: Write an equation to show the reaction between plaster of Paris and water.

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Q: 11. Common to magnesium sulfate, calcium chloride, calcium sulfate, magnesium oxide is the…

A: Here both a and d could be the correct answer i.e complexometry ang gravimetry.

Q: the aqueous solution of KNO2 has the following environment: a) acid b) neutral c) basic d) same as…

A: The aqueous solution of KNO2 is

Q: Explain how the CO2 generated by cells and exhaled in the lungs is carried as bicarbonate in the…

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Q: n measures the ar

A: Equilibrium constant expression is ratio of concentrations of products over the reactants.

Q: How many ammonia molecules must react to produce 1.25 kg of ammonium sulfate?

A: The formation of ammonium sulfate will take place when 2 moles of ammonia will react with 1 mole of…

Q: Would Na2CO3 react with HCl? Write the chemical equation. Write the chemical equation for the…

A: Yes. Na2CO3 (sodium carbonate) reacts with HCl.

Q: What is the equation for the reaction of AL(s) and 6MHCl(aq)?

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: What is the molarity of a solution that contains 262.5 grams of C12H22O11 in 0.950 L of solution?

A: Any certain solution's molarity is represented by either "M" or "mol/L". The molarity provides the…

Q: How many milliequivalents of Ca⁺² are present in 1.000 gram of Calcium Carbonate (MW: 100.09 grams…

A: In this question, we want to determine the milliequivalents of Ca2+ ion.  How we can calculate, you…

Q: Chemical formula of Mg2+ and CO32-

A: Writing chemical formula of ionic compounds :- Electrical neutrality principle is used while writing…

Q: 6. Which of the following properties increases as the IMFA becomes stronger? O boiling point O vapor…

A: The attraction forces between the different molecules are known as intermolecular forces.

Q: 23. How many grams of copper sulfate can be dissolved into 0.4 L of solution?

A: __Given Data:__ *The volume of solution is 0.4 L. The mass of copper sulfate can be calculated as…

Q: How does the structure of Dragon blood allows it to function as a pigment?

A: The colour of a compound is due to the presence of pigment present in that compound. That pigment is…

Q: How many grams of carbon are formed by the breakdown of 60.0 g of sucrose?

A: Formula of Sucrose = C12H22O11  Molar mass of sucrose = 342 g/mol 342 g of sucrose has 12 x12 g of…

Q: How many moles of N2 are produced by the decomposition of 1.75 mol of sodium azide

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Q: Hypochlorite ion is a strong oxidizing agent that is producedduring the respiratory burst. Explain…

A: An oxidizing agent (often referred to as an oxidizer or an oxidant) is a chemical species that tends…

Q: What is the balanced chemical equation for the reaction of CuSO4 with NaOH?

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: write the balanced chemical equation and the net ionic equation for when Na2SO4 reacts with K2CO3

A: