5.18 g of ionic compound containing Cl- dissolved in water and treated with pb+2 to form 6.78g pbC12 ( 278 g/mol) precipitate, what is the percent by mass of Cl- (35.5g/mol) in the original sample (%CI)? O 61% O 16 % O 33% O 35 %

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Q: The chemical formula of the white precipitate in test for halogens using silver nitrate test * O…

A: Halogens - These are the group 17 elements of the modern periodic table.

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

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Q: 0.634 g of commercial bleach solution required 13.24 ml. of 0.0732 M sodium thiosulfate(Na2S203)…

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Q: What is the equivalent weight of Na₂S₂O3.5H₂O? Na = 23.0, S = 32.1, O = 16.0, H = 1.0

A: finding the equivalent weight of Na2s2o3.5h2o

Q: It is required to analyse the metal from its ore sample. Manganese (Mn) present in the ore sample…

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Q: the reaction of sodium phosphate (Na3PO4) solution with lead (II) chlorate [Pb(ClO3)2] solution…

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Q: ( P 4 ) is commercially prepared by heating amixture of calcium phosphate (CaSi O 3 ), sand (SiO 2…

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Q: produced from the reaction of 62.0 g of NO2 with excess water in the following chemical reaction? 3…

A: First convert mass into molar mass  to get mole  Then use mole-mole relationship to get mole of HNO3…

Q: Find the percentage composition by mass of EACH COMPOUND. Given: Raw Materials: 500 g calcium…

A: Actual yield is the amount of product that is obtained when reaction takes place in a laboratory…

Q: What is the mass percentage of iodine in a solution containing0.035 mol I2 in 125 g of CCl4?

A: Given Moles of I2 = 0.035 mol   and mass of CCl4 = 125 g Molar mass of I2 = 253.8 g/mol Molar mass…

Q: 1. Which of the following pairs will produce a precipitate in water at 25°C? O Na3PO4 + KCl → O…

A: 1. Group 5 cations: Mg2+, Na+, K+ and NH4+ these ions do not form the precipitate in the solution.…

Q: 33. 0.2347 g of an ionic compound MX (135.32 g/mol) completely dissociates into its corresponding…

A: I request you to pls repost question (37)

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Q: Which of the following reactions in aqueous solution does not ?result in the formation of a…

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Q: In an experiment, 0.500 mol of Fe(NO3)3 is dissolved in water to produce an 2.00 L solution. The…

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Q: Calculate the mass percent of 3.07 g KCl dissolved in 56.6 g H2O

A: Mass percent of KCl  =  (Mass of KCl dissolved/ Total mass of solution) *100

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Q: Predict the double replacement products for the following reactants. Determine if the reaction will…

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Q: 5. The phosphorus in a sample of phosphate rock weighing 0.5428 g is precipitated as MGNH,PO4 .6H20…

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Q: 8. What mass of Potassium carbonate is needed to prepare 200. mL of a solution having a potassium…

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Q: It was found that 25 ml of a sodium hydroxide solution, which per liter contains 4 g of commercial…

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Q: 6)a. Potassium permanganate c. Calcium carbonate e. Ferric carbonate

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

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Q: You have dissolved 5 g of a rock containing a mixture of calcium carbonate and inert sand in 100 mL…

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Q: - Which of the following is false regarding the reaction of 130.8 g of Zn with a sufficient amount…

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Q: The presence of phosphorus forms this color of precipitate O white violet O yellow O green

A: generally, phosphate salts are insoluble in water and precipitated

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Q: (b) A metallurgical laboratory carried out analysis of a sample in which analysis of Mn was done by…

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Q: Treatment of a 0.4000g sample of impure potassium chloride with an excess of AgNO3 resulted in the…

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Q: What volume of CO2 measured at STP is produced when 23.5 g of CaCO3 is decomposed? CACO3 (s) →…

A: The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a…

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Q: What mass of Ba(IO3)2 (487 g/mol) can be dissolved in 1 L of water at 25°C? Ba(IO3)2 = Ba2+ + 2 IO3…

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Q: A sample weighing 0.6760 g that contains an unknown amount of BaCl2 was completely dissolved in…

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Q: Assuming 11.5 L of CO2 are produced from this reaction, how many moles of CaCO3 are needed? Caco3 -…

A: Given in the question, The complete balanced equation = CaCO3 → CaO + CO2 Volume of CO2 produced =…

Q: 15.00 mL of a 0.20 M solution of sulfuric acid (H2SO4) is mixed with 20.00 mL of a 0.20 M solution…

A: Sulfuric acid react potassium hydroxide produced potassium sulphate salt and water