What is the mass of fish, in kilograms, that one would have to consume to obtain a fatal dose of mercury, if the fish contains 30 parts per million of mercury by weight? (Assume that all the mercury from the fish ends up as mercury(I) chloride in the body and that a fatal dose is 0.20 g of HgCl,.)

Q: Are all sulphides insoluble? Explain.

A: No. Although, most sulfides are insoluble, there are exceptions.

Q: What is the concentration of lithium ions in 0.435 M Li;PO,?

A: The balanced equation for dissolution of Li3PO4 as Li3PO4 (s) →H2O3Li+ (aq) + PO43-(aq)

Q: In the atoms of an aqueous 1 M solution of NaCl, are there ony Na+ions and Cl-ions present?

A: Aqueous NaCl solution means , NaCl solution in water. If water is solvent then the solution is…

Q: what volume (L) of 0.404 M potassium hydroxide solution would just neutralize 60.6 mL of 0.388…

A:

Q: What volume (in L) of 1.5 M Na₂CO₃ would be required to obtain 0.90 moles of Na⁺ ions?

A: Dissociation of Na2CO3                                       Na2CO3  → 2Na++ CO3-2 From the above…

Q: If a 15.1 cm sample of lake water is found to have 172.9 ng As, what is the concentration of arsenic…

A: ppb(parts per billion) The concentration of a very small quantity of a substance in the environment…

Q: What volume (in L) of 1.6 M NaPO, would be required to obtain 0.60 moles of Na ions?

A:

Q: One 240. mL serving of ChemColaT contains 57.0 mg phosphorus (which is found in the phosphoric acid,…

A: Given : Mass of H3PO4 present in one serving = 57.0 mg = 0.0570 g…

Q: Describe the properties andcomposition of various kinds ofsolutions.

A: Given :  To determine the properties and composition of various kinds of solution.

Q: Explain why a dialysis solution must have a low sodiumion concentration if it is designed to remove…

A:

Q: The molarity of “concentrated” HCl purchased for laboratory use is ,12.1 M. How many milliliters of…

A:

Q: If 0.3799 g  of sodium oxalate, Na2C2O4, requires of a 37.33 mL KMnO4 solution to reach the…

A: Given, Mass of sodium oxalate, Na2C2O4 = 0.3799 g Volume of KMnO4 solution = 37.33 mL = 0.03733 L…

Q: It is sometimes asserted that carbonates are soluble instrong acids because a gas is formed that…

A: Calcium carbonate is an ionic compound in which the constituent particles are positively charged…

Q: A sample of 7.75 g of Mg1OH22 is added to 25.0 mL of0.200 M HNO3. (a) Write the chemical equation…

A:

Q: Consider these compounds: A. Al(OH)3 B. Ag3PO4 C. Zn3(PO4)2 D. Ca3(PO4)2 Complete the following…

A: Given compounds are: A. Al(OH)3 B. Ag3PO4 C. Zn3(PO4)2 D. Ca3(PO4)2 By comparing these…

Q: the figure below shows what happens when ammonium chloride decomposes giving ammonia (which is a…

A: a) NH3 and HCl are two gases separately discovered after passing through glass wool.  NH4OH…

Q: What is the concentration of F— ions when 266.640 mg of MgF2 (62.3018 g/mol) completely dissociates…

A:

Q: What is a Salt?

A: Inorganic chemistry deals with the synthesis and behavior of inorganic compounds. Inorganic compound…

Q: How many grams of al2so4.18h2o should be weighed for a 25 mL solution to contain 7% Al(III)?

A: The question is based on concepts of solution. we have to estimate how much the salt need to be…

Q: Calculate: a) the volume of solution that can be prepared.

A: Given :- mass of solute = 30 g               % m/m = 22 %               Density of solution = 1.08…

Q: Write the balanced equation if Vitamin C is oxidized by I2. That was generated by mixing KIO3 and KI

A: A chemical technique which can be used for the determination of amount of compound present in a…

Q: What is the percent of CaCO3 in an antacid given that a tablet weighed 1.3198 g reacted with 50.00…

A:

Q: an Licl solution has a fra fion of 9,4665 ppt concen what volume of solution will of 0.00057 q mass…

A: Given: Mass of LiCl = 0.00057 g. And the concentration of LiCl = 9645 ppt.

Q: atment process for water previously qualified for industrial use and make it suitable for drinking…

A: The treatment process for drinking water varied. It depend on  type and quality of the raw water.…

Q: How and why does water dissolve ionic compounds like sodium chloride?

A: Interpretation -  To tell about how and why does water dissolve ionic compounds like sodium chloride…

Q: If 25.21mL of NaOH solution is required to react completely with 0.500g KHP,what is the molarity of…

A: Molarity (M) :-  The number of moles of solute dissolved in one litre of solution is defined as…

Q: What is the concentration of F— ions when 422.569 mg of MgF2 (62.3018 g/mol) completely dissociates…

A:

Q: What is the normality of a solution of KMnO4 , if 100.26 ml will oxidize that wt. of KHC2O4.H2C2O4…

A: Volume of KMnO4 required to titrate KHC2O4.H2C2O4 .2H2O  = 100.26ml Normality of KMnO4 = ??…

Q: a. If 15.0 ml. of HSOeare required to neutralize 25.0 ml of 0.660N KOH solution, to what volume…

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

Q: A precipitate is formed when 50.00mL of 0.695M HCl reacts with an excess of silver nitrate. How many…

A: AgNO3(aq)+ HCl(aq) → AgCl(s) + H+(aq) + NO3-(aq) no of moles of HCl = no of moles of AgCl

Q: A sample contains one or more of the ions: aluminum, calcium, copper(II), iron(III); upon addition…

A: The precipitate which is settle down in the test tube and upper solution become transparent that…

Q: A solution was prepared by dissolving 0.000245 Kg of H2SO4 in water to give 500 ml. Calculate he…

A:

Q: A 9.12 g of KCl.MgCl2.6H2O is to be dissolved to prepare a solution in sufficient water to give…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: Acetic acid is a covalent compound but, when dissolved in water, it is a weak electro- lyte. How…

A: Since polar compounds dissolve in a polar solvent and nonpolar compounds dissolve in a nonpolar…

Q: How many grams of KClO3 will dissolve in 100g of water at 55oC?

A: The given graph is plotted between solubility and temperature. Solubility represents the amount of…

Q: What is the molar concentration of Zn2+ in a solution that contains 750 ppb of ZnCl,?

A:

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A: Volume of solution of ammonium nitrate = 250mL. Molarity of the solution = 0.146M. The moles of…

Q: B. 0.65 g of As present in 280 mL of sample, what is the concentration of As in parts per thousand…

A: Given: The mass of 'As' (solute) is 0.65 g The volume of the sample is 280 mL

Q: when solutions of Na2S and FeCI3 are mixed, What is the for the solid formed?

A: When solutions of Na2S and FeCI3 are mixed, then Fe2S3 is in solid form and NaCl in aqueous form.

Q: A 0.229 g sample of impure NaOH requires 16.0 mL of 0.2050 M HCl for neutralization. What is the…

A:

Q: State the meaning of neutralization reaction. Give two examples to illustrate your answer.

A: Neutralization reaction is a type of chemical reaction in which an acid reacts with base to forms…

Q: Sodium glutamate (commonly known as monosodium glutamate, MSG) is a salt found in seaweed that is…

A: Molar mass of sodium glutamate = 169.11 g/mol  Molarity of sodium glutamate = 0.0856 M  Volume of…

Q: If I dissolve 16.2 grams of NaOH in 1.314 L of water, what is the Molarity of the solution?

A: Given: 16.2 grams of NaOH dissolved in 1.314 L of water.

Q: Kepone, a carcinogenic insecticide, fungicide, and larvicide for bananas, tobacco, and other…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Calculate the Formal and Molar concentrations of the constituents in 2.30 g of ethanol (g. i 46.1)…

A: formal concentration= 2.30*1000/3500 =0.46

Q: The concentration of cholesterol (C27H46O) in normal blood is approximately 0.005 M. Cholesterol

A:

Q: What volume in Lofa 0.724 M Nai solution contains 0.405 mol of Nal ?

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: A reaction is performed where 10.0 g K2S(s) are added to 250.0mL of a 0.855M HCl(aq) solution. Write…

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

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.