An engineering student accidently ingests 10 g of paint that contains 5% of lead. How many grams of a salt Na4 (EDTA) he has to ingest to capture the lead as Pb EDTA?

Q: Explain how EDTA interacts with a metal? Why do we use it as a titrating agent? Why is EDTA a common…

A: Answer- EDTA is a versatile chelating agent. It can form four or six bond with metal ion and it form…

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: A student performed an experiment on the determination of dissolved oxygen in a water sample using…

A: A numerical problem based on general chemistry that is to be accomplished.

Q: What solid would form when phosphoric acid (H:PO4) is added to milk of magnesia (Mg(OH):)? A) MgO B)…

A: Consider the given reaction of phosphoric acid with milk of magnesia is as follows; H3PO4    +…

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: Use the following table to answer the questions  Ion Extracellular Concentration (mM)…

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

Q: What are the answers to prelab  questions 1-4

A: Molarity = moles/volume of NaOH.0.096×0.0349 L = Moles of NaOH.Moles of NaOH = 3.3504 × 10-3…

Q: In which salts does the cation bind most strongly to water molecules? In which is the binding less…

A: Among all the ions of given compounds, Al3+ of Al(NO3)3 is smallest and the order of the size of…

Q: Calculate the concentration of chloromethane (CH;CI) in water (mg/L to four significant figures) if…

A: Gas concentration = 0.25 % Lets total pressure = 1 atm As percent of concentration is similar in…

Q: A 93.6 g sample of ground water is found to have a lead concentration of 15.65 ppm. Calculate the…

A: Given : Mass of sample = 93.6 g Concentration of lead = 15.65ppm

Q: What is the oxidation number of S in the compound Na₂SO₃?

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Q: Which of the following salts does NOT cause permanent hardness? A Ca(HCO,), 2. B M8SO , © FeCl, D…

A: Ans : C ( Hard water is the water that contains soluble salts of bivalent ions like calcium and…

Q: Which of the following would NOT react with cold water? A K B Na C Mg D Sr

A: Which of the following would NOT react with cold water?

Q: What percentage of a 1.5g sample of SrF2 could dissolve in 10.9 liters of water?

A: Percentage dissolved amount of a sparingly soluble salt can be calculated by knowing its molar…

Q: What is the concentration of F− ions in a solution prepared by saturating a 0.0045 M Ba(NO3)2…

A: The concentration of Ba2+ is 0.0045 M. The dissociation of BaF2 is given below. An equilibrium…

Q: An unknown metal with atomic radius of 0.175 nm forms an SCC structure. What is the density of the…

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Q: how do i write the net ionic equation for the formation of Ag2SO4(s)

A: The product of the reaction is shown below,            Ag2SO4

Q: Is Cl2 soluble in water?

A: Chlorine belongs to group 17 element and period 3. Cl2 is highly reactive in nature and is present…

Q: What would Ksp be equal to in terms of "x" for the insoluble ionic compound Mn203? O 27x4 O256x6 O…

A: Using the expression of equilibrium constant we can find Ksp.

Q: How many grams of FeSO4 must be dissolved in 750 mL of water to make a 65% m/v ferrous sulphate…

A: The ratio of the mass of solute to the volume of solution multiplied by 100 is known as mass/volume…

Q: In some electrolyte drinks, MgCl2 is added to provide magnesium. Why would you expect MgCl2 to be…

A: MgCl2 is a polar molecule as it is formed between an electro positive element Mg and an electro…

Q: What is the solubility of La(IO₃)₃ in water? (Ksp of La(IO₃)₃ is 7.5 × 10⁻¹²)

A: Solubility :- The maximum amount of a solute that can be dissolved in specified amount of solvent at…

Q: Write a net ionic equation for C2O42- and Ca2+

A: The net ionic equation for C2O42- and Ca2+ is as follows,

Q: Which of the following salts does NOT cause permanent hardness? A FeCl, Ca(HCO 3) 2 B CaCl, D) M8SO

A: We have given that  Which of the following salts does NOT cause permanent hardness? A. FeCl2 B.…

Q: Why is MgSO4 a 2:2 type of electrolyte?

A: Electrolytes :-  Substances which conduct electricity in aqueous solution due to the presence of…

Q: The mobility of which ion is very close to the mobility of Cl ions? Select one: O a. K O b. Mg O c.…

A: Given: Different type of ions.  To find : ion which mobility is very close to the mobility of Cl…

Q: What weight of KCN is equivalent to 30.00 mL of AGNO3 solution containing 15.00 g/liter (a) by the…

A: In the given problem, the amount of KCN that will be equivalent to 30.00 mL of AgNO3 solution having…

Q: 2. Water has a dielectric constant of 80. How does this explain why most salts dissolve in water?

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

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Q: How many liters of water contaminated at this maximum level must you drink to consume 1.0 ug of…

A: The maximum concentration set by the US Environmental Protection Agency for lead in drinking water…

Q: in water hardness calcium is a. reacted with surface active agents and precipitates them b.…

A: In water hardness, calcium reacts with carbonate and form compound calcium carbonate. Hence, in the…

Q: What salt would be produced by a neutralization reaction between HaS0,and Ca(OH)2?

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

Q: 1. How many grams of Magnesium hydroxide required dissolved to form a solution at 0.1 N. if the…

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Q: If 0.50 mol of KCl are dissovled in a certain volume of distilled water and a second solution is…

A: The conductance of the solution depends upon the number of ions and greater the number of ions will…

Q: Write balanced chemical equations to show the reactions of the following elements with cold water.…

A: The answer to.the following question is-

Q: If 0.235 g of KHP requires 16.73 mL of NaOH solution to nuetralize it, calculate the molarity of the…

A: In case of acids:n-factor can be defined as the number of H+ ions (hydrogen ions) that are replaced…

Q: 2. What test could you perform to detect the presence of NH4* ion? Write a reaction and explain what…

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next…

Q: When making ice cream, the ingredients must be kept below 0.00 °C in an ice-salt bath. Assuming the…

A: Melting Point and Freezing point of ice/water occurs at almost the same temperatures. So The…

Q: (1) Describe how adding a solution of KOH to the original sulfide precipitate results in the…

A: Sn4+ hydroxide, [Sn(OH)4] is extremely insoluble, just as the sulfide is (Ksp = 1.0 x10-57 and 1.0…

Q: (a) What is a coordinate covalent bond?(b) Is it involved when FeCl3 dissolves in water? Explain.(c)…

A: (a) According to valence bond theory, complex ions have coordinate covalent bonds between ligands…

Q: MCQ 109: In nature, Magnesium Oxide (MgO) is A. acidic B. alkaline C. catalyst D. neutral

A: Magnesium is an element placed in group 2 of the periodic table. It is a metal and on combining with…

Q: Which of the following salts does NOT cause permanent hardness? B CaCl, © M8SO, Ca(HCO ,), 2

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Q: Phosphate buffered saline (PBS) is a very common reagent in cell biology labs that do cell culture…

A: The components of 10X PBS are 10.5 mM KH2PO4, 1.552 M NaCl and 29.7mM Na2HPO4. Volume of 10X PBS…

Q: What solid would form when phosphoric acid (H3PO4) is added to milk of magnesia (Mg(OH)2)?

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

Q: H Diethyl tartarate Titanium isopropoxide, 8.

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Q: 43. Which of the following could most likely serve as an ionophore? II IV А) I B) II С) ш D) IV

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Q: What is the concentration of 1.50 molles ck sodiom chicra |(NCCI) in 2.00 liters of water?

A: given, moles of sodium chloride = 1.50 moles volume of solution = 2.00 Litres