What mass of K2CO3 is needed to prepare 94.0 mL of a solution having a potassium ion concentration of 0.51 M? (MW of

Q: What volume of 0.28 M H2SO4 can be prepared by diluting 113 mL of 5.9 M H,sO,? L

A: Intial concentration = M1 = 5.9 M  Intial volume = V1 = 113 mL  Final concentration = M1 = 0.28 M…

Q: Lead azide, Pb3(N3)3 has been used as a detonator in automobile airbags. A saturated solution of…

A: Since you have posted multiple questions, we will provide the solution only for the first question…

Q: What is the molarity of a solution that is made by diluting 0.075 L of a 8.56 M solution of HF to…

A: Given :     Initial molarity of HF solution=8.56 M     Initial volume=0.075 L     Final…

Q: What will the molarity be of the resulting solutions made by mixing the following? Assume that…

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Q: If 30. g of silver is dropped in 851 ml of a 0.250 M calcium chloride solution, how many moles of…

A: Number of moles is calculated by dividing the given mass with molecular mass. In this question, it…

Q: Calculate the number of moles of solute in each of the following solutions: (a) 4.2 L of 6.16 M…

A: Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as…

Q: What volume (L) of 0.250 M HNO3 is required to neutralize a solution prepared by dissolving 17.5 g…

A: Formula used in titration is M1V1=M2V2 M1= molarity of first solution V1= Volume of first solution…

Q: B The density of comm ercial concentrated HNO3 is 1-41 a /mL. The concentrated acid contains 69%…

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

Q: 67. What volume of each solution contains 0.15 mol of KC1? (a) 0.255 M KC1 (b) 1.8 M KCI (c) 0.995 M…

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Q: 7) (30) For questions a - c, you must use dimensional analysis to solve the problems related to the…

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Q: Calculate the number of grams of solutethat has to be used to make the following solution: 131.4 mL…

A: Given :- molarity of H2SO4 solution = 0.694 M volume of solution = 131.4 mL  To be calculated :-…

Q: (Ksp) The soubility of calcium phosphate, CA3(PO4)2, IS 7.1 x 10-7 mole liters ndar What are the…

A: The solubility of calcium phosphate (Ca3(PO4)2 ) = 7.1 × 10-7 moles/litre.  Molar concentration of…

Q: Calculate the grams of solute in each of the following solutions:  (a) 3.3 L of 0.47 M K2CrO4  (b)…

A: Molar mass of k2CrO4 = 194.1896 g/mol M.M of HC2H3O2 = 60.052 g/mol M.M of HNO3 = 63.01 g/mol

Q: ( What is the ppm concentration of lead in a water sample if there are o.00890 g of lead dissolved…

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Q: How many grams of FealcOa)3 react completely with 20.0mL of 2.00M of Fe. are required to

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Q: (d) the grams of Ca3(PO4)2 that can be obtained from 128  mL of 0.358 M Ca(NO3)2     (e) the volume…

A: d. Mass of Ca3(PO4)2 obtained is 4.756 g.

Q: 10) How many miligrams of BaSO4 are dissolved in a 225 mL sample of BaSO4(aq)? (Hint: calculate the…

A: BaSO4 (s)  ------>  Ba2+ (aq)  +  SO42- (aq) Ksp = [Ba2+][SO42-]

Q: A 50.0 ml solution contains only Na2SO4 (MW 142.04 g/mole).  If 40.0 ml of 0.25 M BaCl2 is needed to…

A: To calculate the number of reactants required for product formation, we must have a balanced…

Q: What is the molarity of 1 kg of KNO3 (MW=101.11g) dissolved in 2.75 L of solution?

A: Molarity is the number of moles of solute present in one liter of solution. It is represented by M.…

Q: Calculate the number of moles of solute in each of the following solutions:  (a) 5.8 L of 1.63 M…

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Q: In the process of salting-in, protein solubility in a dilute saltsolution is increased by adding…

A: Mass of one mole of an element is called the atomic mass of that element. It is the ratio of the…

Q: Vanadic ion, V3+, forms green salts and is a good reducingagent, being itself changed in neutral…

A: Oxidation state of V in V(OH)4+ is +5 and Oxidation state of V in V2(SO4)3 is +3. Given…

Q: A 0.421 m solution of H2SO4 is dissolved in 156 mL of CCI4. What is the molarity of 236 mL of the…

A: Molarity (M) : number of moles of solute  present in  1 litre solution is called molarity M = n /…

Q: A titrant of 1.0 M K2Cr2O7 was used for titration of 30 mL aqueous ethanol C2H6O solution and…

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Q: e table below,

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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: 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: 8. You are asked to make 250.0 mL of a 1.5 M solution of H2SO4 in lab. You have a stock solution of…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: mass of lactic acid is

A:

Q: A mathematical equation useful for dilution calculations isM(dil)xV(dil)xM(conc)xV(conc) (a) What…

A: molarity is the number of moles of solute dissolved in a 1 liter of…

Q: Calculate the grams of solute in each of the following solutions: (a) 27.5 mL of 1.50 M KMnO4 (b)…

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Q: What is the molarity of potassiu ions in a 0.122 M K2CrO4 solution?

A: Molarity is the number of moles of solute dissolved per liter of solution. 0.122 M K2CrO4 solution…

Q: 5. A 0.709 g sample of H2C2042H2O is dissolved in water and titrated to a phenolphthalein endpoint…

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Q: 25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20…

A: Working formula Volume×Molarity = no of mmol The weight percent by Volume  = [(Mass of…

Q: Suppose a 250. mL flask is filled with 0.80 mol of SO, and 1.5 mol of SO3. This reaction becomes…

A: The balanced equation is   2 SO2 (g) + O2 (g) <---------> 2 SO3 (g)Volume = 250 mL = 0.250 L…

Q: In an aqueous solution of potassium chloride, the solute is (1) Cl-only (2) KCI (3) K+ only (4) H20

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Q: Complete and balance the following equations: (a) Mg;N2(s) + H,0(I) (b) C3H;OH(1) + 02(8) (c)…

A: The complete and balanced reactions are as follows: (a)

Q: What volume in milliters of 1.420M sulfuric acid is needed to neutralize 3.209g of aluminum…

A: Calculate the number of moles of aluminum hydroxide. The molar mass of aluminum hydroxide is 78…

Q: A solution of permanganate contains 2.608 grams of KMnO4 per 750 mL. What is the normality of the…

A: Given the mass of KMnO4 = 2.608 g  Molar mass of KMnO4 = 158.034 g/mol => moles of KMnO4 = 2.608…

Q: 10.26g of Lioh is dissolved in enough water to make 750.0 ml of total solution. what is the molarity…

A: Mass of LiOH10.26g Volume = 750.0 ml= 0.750 L

Q: How many mmol of  NaOHNaOH  will react completely with 50. mL of 2.0 M H2C2O4

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Q: How many grams of solid K3Fe(CN)6 (Mw = 329.2 g/mol) will be needed to prepare 532 mL of 0.0692 M…

A: Grams of CN- = molarity × volume × molar mass of CN- Grams of CN- = 0.0692 M × 0.532 L × 26 gmol-…

Q: What mass of Na)CO; is present in 0.650 L of a 0.230 M Na7CO; solution? 1S

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: A solution contains 20.0% (by mass) of ammonium sulfate, (NH4)2SO4, and has density of 1.12 g/mL.…

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