6-ROX is a dye with a molecular weight of 631.67 g/mol. A student prepares a stock solution by dissolving 0.275 grams of 6-ROX in 500.0 ml of solvent. The student then prepares a working solution by taking 10.00 ml of the stock solution and diluting it to a final volume of 250.0 ml. Calculate the final concentration of the dye in the working solution in moles per liter.   Answer = ______ moles/liter   Large and small numbers may be entered in calculator notation:  2.30×10–5 can be entered as 2.30E–5

Q: What is the concentration (M) of an unknown acid solution if it took 16.92 mL of 0.1030 M NaOH to…

A: Since the acid is given monoprotic  hence we can assume it to be HA

Q: 25.0 mL of a 0.95 M lead (II) chloride solution are mixed with 25.0 mL of a 0.75 M aluminum iodide…

A: Given: Volume of PbCl2 solution = 25.0 mL Molarity of PbCl2 solution = 0.95 M Volume of AlI3…

Q: 3. As part of an experiment, you need to make 150 mL of a 0.750 M ammonium hydroxide solution from…

A: Molarity of the required solution, C = 0.750 M or 0.750 mol/L  Volume of the required solution, V =…

Q: A student combined 37.2 mL of 1.69 M KMnO4 solution with 15.50 mL of a 0.891 M KMnO solution.…

A:

Q: 471 mL of 2.013 M linthium baltimide (LiBr, 84.781 g/mol) is combined with 380 mL of 6.582 M shorium…

A: Calculation

Q: Enter a number (e.g. 0.500). Pay attention to significant figures. A student prepared a stock…

A: The mass of The volume of the solution = The final volume of the solution = We have to calculate the…

Q: 0.05 g of acetyl salicylic acid has been dissolved to the volume 25.00 ml to create a stock…

A:

Q: Determine the % of acetic acid (MM=60.05 g/mol) in a 2.00 ml vinegar sample that has a mass of 2.04…

A:

Q: Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory to…

A: Sodium hydroxide reacts with KHP to form the sodium-potassium phthalate and water. The reaction is…

Q: If 50.0 g of CH₃OH (MM = 32.04 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A: Number of moles =50.0 g/32.04 g/mol                                      =1.56 mol

Q: 0.500 mL of an 0.215 M NaCl solution is added to 100.0 mL of pure water. what is the concentration…

A: Given Volume of NaCl initially (V1) = 0.500 mL Initial concentration of NaCl(C1)=0.215M Concentrate…

Q: A solution was prepared by mixing 60.00 mL of 0.100 M HNO3 and 130.00 mL of 0.200 M HN03. Calculate…

A:

Q: A student combined 37.2 mL of 1.69 M KMNO4 solution with 16.10 mL of a 0.891 M KMNO4 solution.…

A: First solution: The volume of KMnO4 solution =37.2 mL  Molarity of KMnO4 solution =1.69 M  Second…

Q: 20.0 mL of 0.30 M Nickel Sulfate (NISO4) was mixed with 35 mL of 0.70 M NISO4, what is the final…

A:

Q: A solution of an unknown monoprotic acid was prepared by dissolving 72.9 mg of the acid into 50. mL…

A: Molarity is given by the number of moles per liter of the solution.

Q: If 0.500 mL of an 0.223 M NaCl solution is added to 100.0 mL of pure water.  what is the…

A: The objective of this question is to find the concentration of the new solution when a certain…

Q: Chemistry labs often purchase concentrated HCl (12.0 M) and dilute the solution for laboratory use.…

A: Molarity of initial solution = 12.0 M  Molarity of new solution = 0.250 M  Volume of new solution =…

Q: A laboratory technician needs to make a 135 liter batch of a 20% acid solution. How can the…

A: Total volume of final acid mixture = 135LFor pure acid,concentration (v/v) = 100%For 10% (v/v)…

Q: 10. To perform an experiment, you need 0.800 L of 12.0 M sulfuric acid. You go to the acid cabinet…

A: Given: Initial molarity is 18 M, final volume is 0.800 L and final molarity is 12 M. Introduction:…

Q: How many milliliters of 0.145 M HCl are needed to completely neutralize 46.0 mL of 0.110 M Ba(OH)2…

A: First the reaction between given acid and base is noted as shown below, 2HCl + Ba(OH)2→BaCl2 + 2H2O

Q: Iron reacts with HCl solution to give H2 gas and Fe2+ ions. Suppose that 3.7 g of iron are to be…

A: The question is based on reaction Stoichiometry. we have been given mass of iron. we need to…

Q: 10. Describe, using words and calculations, how to get 500.0 mL of a 0.10 M NaOH solution from a…

A: Dilution formula given as M1V1 = M2V2 Where M1 = molarity of stock solution  V1= volume of stock…

Q: If 0.500 mL of an 0.214 M NaCl solution is added to 100.0 mL of pure water.  what is the…

A:

Q: Determine the % of acetic acid (MM = 60.05 g/mol) in a 2.00 mL vinegar sample that has a mass of…

A: Given that, a 2.00 mL vinegar sample that has a mass of 2.10 g. A 16.36 mL of a 0.155 M NaOH…

Q: Calculate the number of grams of unknown solute (MW = 56.105 g/mol) in 250.0 mL of a 0.169 M…

A: Answer Option A) 2.37 g

Q: Students in a chemistry lab are making the compound cobalt (II) carbonate. It can be made by…

A:

Q: A chemistry student weighs out 0.0917 g of citric acid (H₂CH₂O₂), a triprotic acid, into a 250. mL…

A: Given : mass of H3C6H5O7 = 0.0917 g And concentration of >NaOH = 0.1200 M Since H3C6H5O7 is a…

Q: Suppose that 3.43 L of 8.77 M potassium sulfate is added to 0.80 L of 3.90 M calcium chloride.  What…

A: Ionic reactions are fast due to interionic force is columbic force and opposite charged ions are get…

Q: Two solutions are combined: 637 mL of 147 mM MgSO4 and 501 mL of 160 mM NH4OH. What is the…

A: volume of MgSO4 = 637 mL molarity of MgSO4 = 147 mM volume of NH4OH = 501 mL molarity of NH4OH = 160…

Q: 3NaOH= H3PO4----> Na3PO4+ 3H20 A 41.0ml sample of NaOH solution of unknown concentration requires…

A: Given, 24.3 mL of 0.150M  H3PO4 no. Of moles of H3PO4= 0.0243 L × 0.150M No. of moles of H3PO4 =…

Q: A student needs to dilute a 0.25 M Pb(NO3)2 solution to make 63.0 mL of 0.19 M Pb(NO3)2. Set up the…

A: M1 = 0.19 MV1 = 63.0 mLM2 = 0.25 MV2 =?

Q: Determine the % of acetic acid (MM = 60.05 g/mol) in a 2.00 mL vinegar sample that has a mass of…

A: Given: Volume of acetic acid solution = 2.00 mL> Molar mass of acetic acid = 60.05 g/mol. Mass of…

Q: Solid zinc nitrate is slowly added to 175 mL of a 0.0572 M potassium sulfide solution. The…

A: Here we are required to find the concentration of zinc which is needed to just initiate the…

Q: You have a 1 M stock solution of Tris-HCl. Calculate how much of it you would need to make 100 ml of…

A: A question based on titrimetric analysis. Concentration of the stock solution is prescribed from…

Q: A student needs to dilute a 0.40 M Pb(NO3)₂ solution to make 75.0 mL of 0.16 M Pb(NO3)2. Set up the…

A: Here, we have to find the volume of a 0.40 M Pb(NO3)2 solution that is required to make a 75.0 mL of…

Q: A chemistry student weighs out 0.0570 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A: