mass

Q: 4. The titration of 10.00 mL of a diprotic acid solution of unknown concentration requires 21.37 mL…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: Solid manganese(II) acetate is slowly added to 150 mL of a sodium hydroxide solution until the…

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Q: Solid zinc acetate is slowly added to 150 mL of a ammonium carbonate solution until the…

A: Volume of ammonium carbonate = 150 mL Concentration of zinc ion (Zn2+) = 0.0341M

Q: Will KClO4 precipitate when 20 mL of a 0.050-M solution of K+ is added to 80 mL of a 0.50-M solution…

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Q: An aqueous sample of 25.0 mL H2SO4 is neutralized by the addition of 28.9 mL of 0.203 M KOH.  What…

A: The neutralisation reaction taking place will be 2 KOH + H2SO4 ------> K2SO4 + 2 H2O

Q: How many grams of PbBr2 will precipitate when excess CrBr3 solution is added to 57.0 mL of 0.780 M…

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Q: The percent nitrogen (N) in a protein sample can be determined by reacting the protein with sulfuric…

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Q: he addition of which compound will cause insoluble barium fluoride to become soluble. Refer to the…

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Q: Carbonic acid (H,CO,) is a polyprotic acid. Write balanced chemical equations for the sequence of…

A: The formula of carbonic acid is H2CO3  Since H2CO3 is a diprotic acid. Hence it will have 2…

Q: It takes 37.4 mL of 0.212 M NaOH to neutralize 10.0 mL of aqueous H2SO4.  What is the concentration…

A: The balanced neutralisation reaction taking place is 2 NaOH + H2SO4 --------> Na2SO4 + 2 H2O…

Q: A quantity of 19.68 mL of a KOH solution is needed to neutralize 0.4838 g of KHP. What is the…

A: Here, given that mass of potassium hydrogen phthalate (KHP) is  0.4838 g, molecular mass is 204.224…

Q: The balanced chemical equation for the neutralization is: H₂SO4 + 2 NaOH → Na2SO4 + 2 H₂O Determine…

A: To calculate the moles of base , we would use mole ratio between acid and base from the given…

Q: Suppose 0.347 grams of a solid monoprotic acid are titrated with 14.82 mL of 0.117 M NaOH.  What is…

A: The monoprotic acid reacts with sodium hydroxide as follows: HA  +  NaOH  →  NaA  +  H2O The…

Q: The titration of 25.00 mL of a sulphuric acid solution of an unknown concentration requires 31.22 mL…

A: The reaction in which an acid and a base react to produce salt and water is called as…

Q: What weight of KCN is equivalent to 30.00 mL of AgNO3 solution containing 15.00 g/liter (b) by the…

A: Solution                            Given that Here weight of KCN is equivalent to 30.00 mL of AgNO3…

Q: A 29.1 mg food sample containing nitrogen was digested according to the Kjeldahl method and the…

A: Kjeldahl method is the method to find out the nitrogen content in the given sample. The total…

Q: 5. When 50.0 mL of a 0.3000 M AGNO3 solution is added to 50.0 mL of a solution of 0.2500 M MgCl2,…

A: A question based on quantitative analysis, which is to be accomplished.

Q: 6. A buffer is prepared by adding 20.0 g of sodium acetate (CH3COONa) to 500 mL of a 0.150 M acetic…

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Q: 24. A solution of volume 0.500 L contains 1.68 g NH3 and 4.05 g (NH4)2SO4. (a) What is the pH of…

A: first we calculate the molarity of the compounds. no. of moles of NH3 = weight / molecular weight…

Q: hydroxide, NaOH, How many individual hydroxide ions (OH−) are found in 23.46 mL

A: Solution:- As it is multiple questions, I would answer first 3 questions. For (1) Given  :- If 0.5 M…

Q: When 38.0 mL of 0.1250 M H2SO4 is added to 100 mL of a solution of PbI2, a precipitate of PbSO4…

A: Given: Concentration of H2SO4 = 0.1250 M Volume of H2SO4 solution = 38.0 mL = 0.038 L…

Q: Solid potassium hydroxide is slowly added to 75.0 mL of a 0.117 M lead(II) cyanide solution until…

A: Reaction of KOH with Pb(CN)2: 2 KOH + Pb(CN)2  → 2 KCN + Pb(OH)2

Q: A 1.00 gram sample of anhydrous cerium sulfate was dissolved in water. Barium nitrate solution was…

A: A precipitation reaction is characterized by the formation of an insoluble solid when a cation and…

Q: A 0.4960 g sample of a CaCO3 (100g/mol) is dissolved in an acidic solution. The calcium is…

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Q: Suppose you are asked to determine the identity of a white solid. When you add water to the white…

A: Among these , MgCl2,ZnCl2 and CaCl2 are soluble in water , and PbCl2 is slightly soluble in water.

Q: 2.) If the solubility of copper(II) iodate, Cu(IO3)2 is reported as 0.12 g per 100. mL, what is the…

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Q: in an experiment 4.7g Al2O3 and excess HF were dissolved in 500 ml of 0.12M NaOH if 6.45g Na2AlF6…

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.