If the recommended amount of fluoride is 3.0 mg and is consumed as NaF, what amount of NaF must be consumed to meet the recommended amount of fluoride?

Q: Calculate the concentration of phosphate in the water sample expressed in mg L1.

A: Concentration of Phosphate standard solution = 102.2 mg/L Volume of each standard solution = 100 mL…

Q: 20.0 grams of Sodium hydroxide was dissolved in water up to 500 mL. Calculate the Molar…

A: Given, Grams of sodium hydroxide = 20.0 g Volume of solution = 500 mL       Required,…

Q: arrange the following oxoacids in order of decreasing acid strength: HClO, HClO2, HClO3, and HBrO

A:

Q: Why NaClO4 behaves only as oxidising agent?

A: Oxidizing agents are those which causes oxidation of other reagents and themselves get reduced.…

Q: Rank the following in order of decreasing acid strength: HClO, HCl, HCN, HNO₂.

A: The acid dissociation constant represents the relationship between the strengths of acids and bases.…

Q: What are the products of the reaction between sulfuric acid and sodium hydrogen carbonate? * NaSO. +…

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Q: what is the balanced equation for sodioum and water

A: Sodium and water combines to form sodium hydroxide and hydrogen he's is liberated.

Q: b) Diagram 9 shows the elements from a Period found in the periodic table 23.0 24.3 27.0 28.1 31.0…

A: Metals generally form basic oxides whereas non-metals form acidic oxides. Some metals form oxide…

Q: A metal oxide will form and a nonmetal oxide will form in aqueous solution. A) an acid, an acid B)…

A: METAL OXIDE WILL FORM A BASE AND NON METAL OXIDE WILL FORM A ACID IN AQUEOUS SOLUTION

Q: Write the formula of Glaubers salt.

A: Glauber’s salt is the common name of sodium sulfate decahydrate.It occurs as white or colourless…

Q: Calculate the concentration of all ions present in 6.06 g Na,S in 1.00 L of solution.

A: Molarity = moles/volume of solution(in L)  Number of moles = mass/molar mass

Q: Which compound changes the pH value of water the least? O H2CO3 O H3PO4

A: Given : We have to tell which compound changes the pH least .

Q: which of the following would be a the reaction of Ca o plus NaF

A: When calcium oxide reacts with sodium fluoride gives calcium fluoride and disodium oxide.

Q: Write the balanced equation for the neutralization reaction between H, SO, and KOH in aqueous…

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

Q: 1. Write the full equation (including charges and states of matter) for the following: a. The…

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Q: Write the ionic equations for the reaction of Group III cations with NaOH.

A: Group III cations are Al3+, Fe3+, and Cr3+.

Q: (c) Carbon, silicon, germanium, tin and lead are elements of Group IV ( 14) of the Periodic Table,…

A: 1. Carbon forms large network covalent structures in its two allotropes: diamond and graphite.…

Q: Write the full equation (including charges and states of matter) for the following: a. The reaction…

A: The balanced equation can be defined as the equation involving an equal number of each atom on both…

Q: 7. (a) Write a complete, balanced chemical equation to show how sodium carbonate removes calcium…

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Q: A glass of milk has a pH of about 6 and a cup of tea has a pH of 5. Which one has more hydronium…

A: GivenpH of milk = 6pH of tea = 5

Q: What ion(s) are formed when Na2SO3 i dissolved in water? a.Na+ b. 02-, S2-, Na+ c. 02-, Na+ d.…

A: An ionic compound dissociated in water into respective cations and anions.

Q: How many litres of 0.265 mol/L solution of phosphoric acid are necessary to completely neutralize…

A: Given, Molarity of phosphoric acid = 0.265 mol/l Molarity of ammonia = 0.325 mol/l Volume of ammonia…

Q: Explain the chemical bonding between Sodium and Nitrogen using Lewis electron dot structure.

A: The question is based on the concept of chemical bonding. we have to show how Sodium and nitrogen…

Q: What is the molar concentration of Li+ ions in a 0.750 M solution of Li3PO4?

A: Molar Concentration of Lithium Ions can be calculated as:

Q: Write a balanced equation for the reaction of each of thefollowing compounds with water: (a) SO2(g),…

A: The chemical reaction in which number of atoms for each element in the reaction and the total charge…

Q: Explain why KNO3 is a suitable salt to be used in salt bridge.

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Q: Which element would form an ionic bond with oxygen?

A: Electronegativity is defined as tendency to attract shared pair of electron towards itself. Pauling…

Q: Explain why sulfuric acid, H2SO4, which is a covalent molecule, dissolves in water and produces a…

A: When sulfuric acid is brought in contact with water, it starts behaving as a Bronsted–Lowry acid. It…

Q: Like CO2, water has two polar bonds but unlike CO2, water is polar overall. Explain why this is so?

A: Since we know that the molecular geometry of CO2 is Linear  and H2O is bent .

Q: Define alkaline

A: ANSWER

Q: Draw the Lewis structure of the phosphonium ion.

A: Lewis structure represent the diagrams of a molecule which represent the valance electrons of atoms…

Q: Complete and balance the following:(a) NaHSO4(aq)+ NaOH(aq) →(b) S₈(s) +excess F₂(g)→ (c) FeS(s)…

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Q: Write the basic equilibrium equation for NH₃ Write the acidic equilibrium equation for HClO₂.

A: Equilibrium constant is the ratio of  product of concentration of products raised to their…

Q: What happens when Sodium Na reacts with Mercury Hg

A: Solution Sodium amalgam, ordinarily denoted Na(Hg), is associate alloy of mercury and atomic number…

Q: Using Lewis structures, write balanced equations for the following reactions:(a) HCl(g) + PH3(g)…

A: (a) Lewis structure is representation of a molecule or ion by showing only valence electrons of…

Q: Why is sodium hydrogen carbonate an essential ingredient is antacids?

A: Sodium hydrogen carbonate or baking soda is a salt of strong base and weak acid. Hence, the pH of…

Q: Write the formulae of any two oxoacids of sulphur.

A: The Oxoacids of Sulfur are those compounds which consist of Oxygen, Sulfur and Hydrogen. Some…

Q: What is the concentration of lithium ions in 0.405 M Li¿PO4?

A: Given, Concentration of Li3PO4  = 0.405 M  we have to calculate Concentration of Lithium ions =?

Q: Which ions are responsible for making water hard?

A: There are two types of water, based on the minerals present in the water. Hard water: Hard water…

Q: What is the concentration of calcium ions in a 2M solution of calcium phosphate? 3M O 2M O 4M 6M

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: Complete and balance the following equations: a.* BaCl, 2H,O -A-> b. Co(C,H;O2), 4H,O -A-> (s)

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Q: Determine the concentration of oxygen ions in 0.5980 M SnO3

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Q: Metal oxides form acids with water.  a. True b. False   Metals react with halides to form salts.…

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Q: Which of the following is an oxidizing agent? 2 Al + 3 Br2 → Al2Br6 O Al Br2 O Al,Br2

A: An oxidizing agent reduces itself while oxidizing another species in the reaction. Oxidation is the…

Q: Calculate the theoretical number of moles of HCl equivalent to 1 mole of Al2O3

A: HCl is a strong acid and Al2O3 is an amphoteric oxide. Al2O3 reacts with acid and form salt and…

Q: 2. Calculate the AH for the reaction: N2O4 + CO → N20 + CO2

A: Heat of reaction is defined as the amount of heat released or added during the course of a reaction…

Q: below

A: Na2S dissociates in water to it's ions

Q: What amount of NaOH is produced in reaction with 2.25 g Na with water?

A: Given: Mass of Na = 2.25 g Known: Molar mass of Na = 23 g/mol Molar mass of NaOH = 40 g/mol

Q: Which of the following has the highest ionic strength? O 0.60 M NaCI O 0.60 M Na2SO4 O 0.60 M…

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Q: QI\ Complete the following equations? -COOH + CH;OH NII,OI OH Ph

A: Here i have completed all the equation

Group 13 Elements

In the periodic table, group 13 elements exist in the first p-block. There are six elements present in group 13, which include boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and element 113 (ununtrium, (Uut)). Group 13 elements are also designated as the boron family.