A sample of KHP (molar mass = 204.23 g/mol) required 28.0 mL of NaOH solution (0.0832 M) to reach a phenolphthalein endpoint. Calculate the mass of KHP in grams. O a. 0.3568 O b. 0.2854 O c. 0.2379 O d. 0.4758 O e. 0.2041

Q: (a) Which will have the highest concentration of potassiumion: 0.20 M KCl, 0.15 M K2CrO4, or 0.080 M…

A: Concentration gives the ratio of solute in solution. There are various different ways to calculate…

Q: What volume in mL of 0.300 M NaF would be required to make a 0.0470 M solution of NaF when diluted…

A: Given, Initial Molarity, M1 =  0.300 M Volume, V1 = ? Final volume of the solution, V2 = 250.0 mL…

Q: What is the final concentration of HCl in a solution prepared by addition of 622.0 mL of 4.73 M HCl…

A: Given that :  Volume taken for 4.73M HCl(1) = 622.0ml Vume taken for 2.03M HCl(2)= 549.0ml Molarity…

Q: Ksp

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Q: 20. 50 ml of a 0.874 M HNO3 solution is diluted to 0.250 l.  What is the concentration of the…

A: Given values: Initial volume: V1 = 50 mL Initial concentration: C1= 0.874 mL Final volume: V2 = 0.25…

Q: a. Calculate the concentration of the solution when 0.11g of Potassium hydrogen phosphate is…

A: Potassium hydrogen phosphate mass=0.11 g volume of solution =500 mL =500×10-3L RMM of  KH2PO4 =…

Q: How to prepare 2 liters of 0.1 N H2SO4 solution? (H2SO4; MA = 98 g / mol; 96% and d = 1.84 kg / l)

A: Given data, Molar mass of H2SO4 is 98 g/mol. Density=1.84 kg/L and 96% by mass. For find out the…

Q: A lab technician dilutes 45.5mL of a 1.50mol/L sodium chloride to a final volume of 200.0mL. What is…

A: Molarity is defined as moles of solute present per liter of a solution.

Q: What volume of 10 ma/m % KOH solution is needed (with a density of 1.09 g/cm3) to neutralize 25 cm3…

A: Let the mass of KOH solution be 100 g.10% m/m. Therefore mass of KOH = 10g = 0.178 moles.Volume of…

Q: 3)Find the number of mg Na:CO: (FW = 106 g/mol) required to prepare 500 mL of 9.20 ppm Na solution.

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Q: Calculate the volume of concentrated reagent required to prepare the diluted solutions indicated:…

A:

Q: Calculate the final concentration of each of the following. A) 1.8 L of a 2.50 M HNO3 solution is…

A: For dilution, M × V = constant

Q: What volume in mL of 0.300 M NaF would be required to make a 0.0365 M solution of NaF when diluted…

A: According to formula, M1V1       =        M2V2 Before Dilution                After Dilution M1 =…

Q: Volume of concentrated reagant required to prepare diluted solutions below: 16 M H3PO4 to prepare…

A: Given Four different diluted solutions whose volume of concentrated reagent is to be determined.

Q: 1. A 0.68 gram sample of a volatile liquid was heated to 358 K. The gas occupied 265 mL of space at

A: Note: Dear student as per the guidelines only the 1st quetions  is allowed to answer. from ideal gas…

Q: Determine the number of moles of AgNO3 in 25.0 ml of 0.600 M AgNO3. Show solution.

A: Given,  The number of moles of AgNO3 present in 25.0 mL of 0.600 M AgNO3 solution is:

Q: How would you make 50mL of a solution containing 0.25M NaCl and 0.05M MgCl2, starting with solid…

A: Molarity is moles of solute present in per liter of solution

Q: 2.37 L solution containing 1.30 mol L-1 potassium hydroxide (KOH) has been left on your bench. How…

A: Given-> Volume of KOH = 2.37L Molarity of KOH = 1.30 mole/L

Q: I diluted a solution of 10mL to a final volume of 1L. The final concentration was 0.05M. What was…

A: Given that : Initial volume of solution = 10 mL Final volume of solution = 1 L = 1000 mL Final…

Q: What volume (in mL) of a 0.316 M H,SO4 solution is needed to neutralize 46.0 mL of a 0.265 M NaOH…

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Q: lution 01 0.0500 M NaOH Volumes: Initial 45.16 mL 42.93 mL Final 21.38 mL 18.78 mL Used Average Used…

A: The values as calculated Initial 45.16ml 42.93ml Final 21.38ml 18.78ml Used 23.78ml 24.15ml…

Q: 25. The concentration of 4.0 litres of H2sO4 needed to repare 5.0 litres of 2.0 M solution is? A…

A: Given  V1= 4 litres              V2 = 5 litres               M2= 2 M                Find out M1…

Q: What volume, of 8.12 M KOH is needed to make 600.0 mL of 0.384M KOH solution by dilution with water?…

A:

Q: 6-ROX is a dye with a molecular weight of 631.67 g/mol. A student prepares a stock solution by…

A: Given: mass of 6-ROX = 0.275 g molar mass of 6-ROX = 631.67 g/mol Volume of solvent = 500.0 mL…

Q: How many mL of 0.547 M HNO3 are needed to dissolve 5.63 g of MgCO3?

A: Given :- mass of MgCO3 = 5.63 g  Molar concentration of HNO3 solution = 0.547 mol/L  To calculate :-…

Q: In standardization of iodine 12 solution, 15.0 mL of 12 solution needed 32.0 ml of 0.020 M sodium…

A: Given:  Volume of I2 solution used= 15.0 ml  Molarity of I2 solution = M  Volume of sodium…

Q: 3. Which of the following statement/s is/are correct? I. 6.00 N H2CO3 is equivalent to 3.00M H2CO3.…

A: Normality = Molarity * No of H+ ions Molarity = No of moles / Volume (L) No of moles = Mass / Molar…

Q: Calculate the mole fraction of KI in a solution made by dissolving 4.3 g of KI in 8.5 g of water.…

A: MOLE FRACTION: Mole fraction is defined as the fraction of amount of substance present in a mixture.…

Q: What is the final concentration if 60 mL of a 1 in 10 solution is diluted to 200 mL? Select one: A.…

A:

Q: What is the mass in grams of KBr in 0.400 Lof a 0.350 M solution? 0.400 0.350 STARTING AMOUNT 0.400…

A: Given:   The volume of solution is 0.400 L. The molarity of KBr solution is 0.350 M.

Q: A 0.128 g sample of KHP (HKC8H4O4) required 28.54 mL of NaOH solution to reach a phenolphthalein…

A:

Q: What is the final concentration (M) of a solution prepared by diluting 50.0 mL of a 6.00 M KCI…

A:

Q: Solution for A 25.0 mL sample of H3PO4 requires 50.0 mL of 1.50 M NaOH for complete neutralization.…

A: Recall the given reaction H3PO4 + 3 NaOH → Na3PO4 + 3 H2O Molarity of 50.0 mL NaOH is 1.50 M And…

Q: What is the final concentration of 1.0 L of 4.0 M HNO3 solution that was diluted to 8.0 L.

A:

Q: If I mix 21.24 mL of 1.000 M HCl, 13.42 mL of 0.005000 M I2, 5.89 mL of 4.000 M acetone, and 14.74…

A: The number of moles is a ratio of the mass of a substance to the molar mass of the substance.…

Q: What volume of 0.5 M H2SO4 solution is needed to neutralize 40,0 mL of a 0.25 M NaOH solution? O…

A: Given the concentration of H2SO4 and volume and concentration of NaOH solution. we are asked to…

Q: 12. a. What is the molarity of a solution made by mixing 125 mL of 5.00 M H3PO4 with 325 mL H2O? b.…

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Q: A 0.512 g sample of CaCO3 is dissolved in 12 M HCl and the mixture is diluted to 250 mL. How many…

A:

Q: 17) concentrations were measured: [N2] = 3.0 x 10²M, [H2] = 3.7 x 10²M, [NH3] = 1.6 x 10²M. What is…

A: Given data: Concentration of N2=3.0 x 10-2M Concentration of H2=3.7 x 10-2M Concentration of NH3 =…

Q: What volume of 12.0 M HCl is required to make 75.0 mL of 3.50 M HCl? O A. 21.9 mL O B. 0.560 mL O C.…

A: When we’re dealing with dilution equation, we’ll use the following equation  M1V1 =M2V2 where M1 =…

Q: A 9.12 g of KCI.MgCl2.6H20 is to be dissol to prepare a solution in sufficient water to give 1.500…

A: Molarity is the concentration term used to define the concentration of the solution. Molarity is…

Q: 300.0 mL of a 0.430 M solution of NaI is diluted to 700.0 mL. What is the new concentration of the…

A: Before dilution, Initial molarity of the NaI solution (M1)= 0.430 M Initial volume of the NaI…

Q: What volume, in L, of a 1.25 M KI solution contains 0.78 mol of KI?

A: Formula: Molarity = moles of solutevolume of solution ( in L)  1.25 = 0.78Volume of solution (in L)…

Q: For the following reaction: H2CO3 + 2 NaOHNa2CO3 + 2 H2O (1) What is the equivalent mass of H2CO3?…

A: Basicity of acid :-  The number of replaceable hydrogen atoms present in an acid is known as…

Q: ml of 0.3 normali (hydrochloric acid) was taken to prepare a solution with a concentration of 0.09…

A: The concentration of a solution is the amount of solute present in a given solvent at a particular…

Q: 10) What volume of 0.20 M HCl can be prepared from 300. mL of 0.50 M HC1? (Hint: Dilution formula)

A:

Q: What volume of a 1.5 M KOH solution is needed to provide 3.00 moles of KOH? K = 39.10 amu O = 16.00…

A: KOH Molarity =  1.5 M = 1.5 mol/L Moles = 3.00 mol  We know ; Molarity of substance = Moles of…

Q: A saturated solution of KNO3 was prepared at 25° Cby dissolving 12.050 g KNO3 in water and the total…

A: Given: Mass of KNO3 = 12.050 g The volume of solution = 10.5 ml = 10.5 ×10-3 L Temperature = 25° C…

Q: aqueius solution is prepared by dissolving 14.2 of methanol (p= 0.793 g/ml) in enough water to…

A:

Q: How many milliliters of water should be added to 3.3 mL of 18.2 MH 2SO4 in order to prepare 0.10 M…

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