a) An aqueous solution contains 12.6 ppm of dissolved Ca(NO3)2 (which gives Ca21 1 2NO32). Find the concentration of NO23 in parts per million. (b) How many ppm of Ca(NO3)2 are in 0.144 mM Ca(NO3)2? (c) How many ppm of nitrate (NO23 ) are in 0.144 mM Ca(NO3)2?

Q: Complete and balance the following equation then write the net ionic equation. Fe(NO3)3+ K3PO4 -->

A: Complete and balanced reaction is as follows: FeNO33aq + K3PO4aq →FePO4s + 3KNO3aq

Q: When 2.15 g of sodium carbonate hydrate is heated, 1.35 g of water is lost. In which option are I…

A: When sodium carbonate hydrate is heated water is lost , so the remaining mass is the mass of sodium…

Q: In the smelting of iron ores, the reduction of iron oxides in a blast furnace is accompanied by the…

A: A multiple choice question based on chemical thermodynamics that is to be accomplished.

Q: Write the net ionic equation for the reaction of copper (2) sulfate with sodium hydroxide.

A: The net ionic equation for the reaction of copper sulfate with sodium hydroxide has to be drawn.

Q: (2) 3luaai What mass of KMNO4 must be dissolved to prepare 1.25 L of O.110 N KMNO4 solution? (K =39…

A:

Q: Write a balanced chemical equation for each of the following reactions: a. Calcium hydroxide +…

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: What will happen to calcium phosphate Ca3 (PO4) 2 when heated from 60 ° C to 100 ° C?

A: The solubility product of Ca3(PO4)2 is 2.0 X 10-29

Q: Give TWO reasons why aluminium metal was not commonly used till last century, even though it is one…

A: Two main reasons that elaborate the uncommon use of aluminum in the last century can be listed as…

Q: This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium…

A: Given that, pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium argentocynate). The molar…

Q: Which of the following has the greatest Fe content: FeS, Fe2(SO4)3, or FeCl2?

A: To find the species having maximum Fe content we need to find the percent mass of Fe in each…

Q: Balance the following equations by adding the appr

A: Answer: Given chemical equation: Na3PO4+Ca(OH)2→Ca3(PO4)2+NaOH

Q: Which compound(s) in the following chemical reaction is (are) in the gas state?

A:

Q: Given the following reaction: 2 Al + 2 KOH + 4 H2SO4 + 22 H20 --> 3 H2 + 2KAI(SO)2•12H20 If you…

A: Aluminium in presence of KOH and sulfuric acid produces an alum.  Here Al is the limiting reagent…

Q: Write balanced molecular, full ionic, and net ionic equations for the reaction of the solid produced…

A: A chemical equation is the representation of a chemical reaction in the form of symbols and…

Q: Balance the following chemical equation: 1. Ca3(PO4)3 + H2SO4 → CaSO4 + Ca(H2PO4)2

A: • The given unbalanced chemical equation is,   Ca3(PO4)2 + H2SO4 →…

Q: Predict the products of the following reaction. If no reaction will occur, use the NO REACTION…

A: Balance Chemical equation means no of atoms should be equaal in both side reactant and product

Q: Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) from the…

A: To calculate the moles of alum formed from the given number of moles of each reagent, we would use…

Q: What is the net ionic equation of the reaction of MgSO 4  MgSO4 with Pb(NO 3 ) 2  Pb(NO3)2 ?

A: The net ionic equation is given in step 2.

Q: - If you knew that 17.6 grams of metal (X) loses 1 mole of electrons when oxidized,

A: Oxidation number is total number of electrons atom has gained or lost,it is not dependent upon mass,…

Q: What compound precipitates when aqueous solutions of Fe2(SO4)3 and LiOH are mixed? (b) Write a…

A: a) The compound precipitates when aqueous solutions of Fe2(SO4)3 and LiOH are mixed Fe(OH)3

Q: The following chemical reaction takes place in aqueous solution: 2FeBrş(aq)+3Na,S(aq)…

A: It indicates the ions that are directly involved in the chemical reaction.To write the net ionic…

Q: 1. A thin wire of silver (Z=47, A = 107.87, face-centered-cubic, density = 10.49 g/cm³) is measured…

A: The objective of the question is to calculate the concentration of conduction electrons, mean free…

Q: What are the three main ingredients (compounds) that are used in the manufacture heat resistant…

A: Answer - Heat resistant glasses - Heat-resistant glass is commonly consisting of a soda lime or…

Q: What is the net ionic equation of the reaction of FeCl2 with NaOH? what is the net ionic equation…

A: General steps to be followed to write net ionic equation : 1) Write the balanced moleculer equation.…

Q: Consider the balanced reaction: 2Cr3+(aq)+3PbO2(s)+6H2O(l)→2CrO42-(aq)+3Pb2+(aq)+4H3O+ (aq) a.Which…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 3. What is the percentage of sulfur in a sample of 2 gm of coal that gave a precipitate of 0.084 g…

A: Moles of sulfur ( S ) atoms = moles of BaSO4 =  given mass of BaSO4molar mass of BaSO4 = 0.084233.4…

Q: he net chemical equation fc

A:

Q: . What amount of phosphorite is needed to completely react with 2.00 kg SiO2 (molar mass: 60.083…

A:

Q: (MW = 44 g/mole) was collected on absorbent and found to weigh 0.1673-g. Calculate the percentage of…

A:

Q: Physiological saline concentration—that is, the sodium chloride concentration in our bodies—is…

A: Record the given data, Molarity of NaCl solution is 0.16 M  Volume of NaCl taken is 25.0 ml = 0.025…

Q: How many moles of ammonia would be required to react exactly with 0.630 moles of copper(II) oxide in…

A: moles of copper(II) oxide = 0.630 mol

Q: How many moles of ammonia would be required to react exactly with 0.764 moles of copper (ii) oxide…

A: Given, 2NH3 + 3CuO → 3Cu + N2 + 3H2O moles of copper (ii) oxide (CuO) react = 0.764 moles moles of…

Q: What is the mass in grams of Na2CO3(s) (molar mass = 105.98 g/mol) that, when dissolved in 104 mL of…

A: Molar mass of Na2CO3 = 105.98g/mol Volume of water = 104mL Molarity ,M = 0M

Q: If 0.15g of Calcium hydroxide is needed in preparing 50mL of Calcium hydroxide topical solution,…

A:

Q: what type reaction is 2Fe+3H2SO4=Fe2(SO4)3+2H2

A:

Q: You found a container with a white substance labeled MCIO, but you do not know which Group 1 metal M…

A:

Q: what type of reaction is fe+h2so4=fe2(so4)3+h2

A: We can determine the type of reaction by observing the changes in the reactant and product sides.

Q: What are the products obtained from the reaction of H2SO4(aq) and Mg(OH)2 (aq)?

A: The reactants given are an acid and a base. They produce to give a salt and water. The reaction is…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.