A solution is prepared by dissolving 0.6584 g oxalic acid (H2C2O4) in enough water to make 100.0 mL of solution. A 10.00-mL aliquot (portion) of this solution is then diluted to a final volume of 250.0 mL. What is the final molarity of the diluted oxalic acid solution?  __________  mol/L

Q: 650.0−g sample of river water taken near an industrial plant contains 27 mg of chromium. What is the…

A: Weight of sample or solution = 650.0 gm Weight of chromium = 27 mg = 0.027 gm (1 gm = 1000 mg)

Q: The concentration unit one part per billion (one ppb) is equivalent to one of solute per of solution…

A: The mass of solute present in per billion mass of the solution is known as part per million (ppm)…

Q: Q4. Which pair of ions will form a precipitate (insoluble) when their solutions are mixed? C. Na, PO…

A:

Q: 3. If 17.0 ml of H3PO4 acid is neutralized by 25.0 ml of 1.5 M NaOH. What is the molarity of H3PO4?…

A: (3) H3PO4 is a tri-protic acid. It reacts with NaOH in 1:3 molar ratio. The balanced chemical…

Q: Choose the best answer. Q1. What mass of K₂CO3 is needed to prepare 200 mL of a solution having a…

A:

Q: IM 3M Both beakers contain a solution of hydrochloric acid (HCI). Beaker A contains 250 mL of 1M…

A: Given that, Concentration of 250 mL HCl solution in beaker A = 1 M Concentration of 250 mL HCl…

Q: AGNO3(aq)+ Na3PO4(aq)→ Ionic equation Net ionic equation

A:

Q: What volume of a 0.174M sodium hydroxide solution is required to neutralize 16.4 mL of a 0.158M…

A: Given , Volume of NaOH , V1=? Molarity of NaOH , M1= 0.174 M Volume of HNO3, V2=16.4 mL Molarity of…

Q: 4. When you dilute a solution, you need to add more to the solution. O solvent dilute O solute O…

A: dilution is a process of decreasing the concentration of the solution.

Q: Q2. A 47.27 g of Ca(OH)2 is dissolved in water to make 1.0 liters of solution. How many mL of this…

A:

Q: is the concentration of a solution made by diluting 85 mL of 6.0 M HCl to a final volume of 750 mL?…

A: Given Initial volume(V1) = 85mL.                               Initial concentration (M1)= 6 M.…

Q: Determine the number for each variable. What is the molarity of a solution that contains 0.40 mol…

A:

Q: What volume of a 0.343 M HCl solution is required to neutralize 24.0 mL of NaOH a 0.123 M  solution?…

A:

Q: n the laboratory a student combines 28.0 mL of a 0.402 M potassium nitrate solution with 12.0 mL of…

A: Equation for the dissociation of the salts KNO3(aq)→K+(aq)+NO3-(aq)K2S→2K++S2- moles of KNO3 = mole…

Q: What volume of a 0.182 M HBr solution is needed to neutralize 27.1 mL of 0.328 M KOH? Part 4 of…

A: An acid base reaction is also called as neutralization reaction. The H+ ions of acid react with OH-…

Q: Two part question. Fill in blanks A. What is the pOH of an aqueous solution of 8.69×10-2 M barium…

A: Given data,for part AMolarity of Ba(OH)2=8.69×10-2Mfor part BpOH of KOH=4.800

Q: Starting with a 6.861 M stock solution of HNO3, five standard solutions are prepared via serial…

A: Given : Initial concentration of solution = 6.861 M Initial volume of each solution = 25.00 mL Final…

Q: many moles are

A:

Q: Is 10mL the original vinegar solution to calculate acidic acid concentration in the original vinegar…

A: An easy breakdown of the procedure being followed according to the description is as follows,25 mL…

Q: If 0.0202 mol CaCl, is dissolved in water to make a 0.790 M solution, what is the volume of the…

A: 1- First we will determine the volume of water in L unit :   We know that,  Molarity =  [ moles /…

Q: How many mL of a 0.500 M NaOH solution are needed to completely neutralize 20 mL of a 0.200 M H2SO4…

A: Given the chemical reaction as follows, 2 NaOH (aq) + H2SO4(aq) --> Na2SO4(aq)  +H2O (l)…

Q: answer Q1. What mass of K₂CO3 is needed to prepare 200 mL of a solution having a potassium ion…

A: Solution 1). Molar mass of K2CO3 = 138.2 g/mol Volume of Solution = 200 mL Concentration of K2CO3 =…

Q: convert the concentration of .700 M Na2SO4 to g/ML

A: The concentration of Na2SO4 is given 0.7 M = 0.7 mol/L

Q: Question 5 Which of the following describes a method to dilute a concentrated solution? O Adding…

A: A method to dilute a concentrated solution is –   – We can dilute the solution by adding enough…

Q: Q1. What mass of Li3PO4 is needed to prepare 500 ml. of a solution having a lithium ion…

A:

Q: 4. A 10.00 mL sample of a solution of acetic acid in water was titrated to the endpoint by the…

A: A question based on mole concept that is to be accomplished.

Q: Q 9 please

A: (9)  Given that -  Atoms = Ca, P , F    Atomic radius is the distance between central of nucleus of…

Q: A 9.24-g sample of a diprotic acid requires 140.0 mL of a 0.750 M NaOH solution for complete…

A: The general reaction of diprotic acid with NaOH is as follows: H2A(aq)+2NaOH(aq)→Na2A(aq)+2H2O(l)…

Q: How many milliliters of 0.124 M NaOH solution will exactly react with 25.0 mL of a 0.210 M HCl…

A: Given , Concentration of NaOH (M1) = 0.124 M Volume of NaOH (V1) = ? Concentration of HCl (M2) =…

Q: Choose the best answer. Q1. What mass of K₂CO3 is needed to prepare 200 mL of a solution having a…

A: Here we have to  choose correct option about which ion pair will not form precipitate-

Q: What volume of a 0.270 M hydroiodic acid solution is required to neutralize 20.5 mL of a 0.190 M…

A: The volume of 0.270M HI required to neutralize the 20.5mL of 0.190M KOH is determined by using the…

Q: gram will float on the surface. A teacher has a bottle of 6.0 M hydrochloric acid. She wants to make…

A: • In the dilution of solution the number of moles of solute must be equal before and after the…

Q: What is the final volume of a 3.5M NaOH solution if the original solution was 20ml of a 7.0OM NAOH…

A:

Q: What volume of a 0.312 M hydroiodic acid solution is required to neutralize 26.5 mL of a 0.149 M…

A: Given information: Concentration of HI = 0.312 M Concentration of NaOH = 0.149 M Volume of NaOH =…

Q: The volume of a 1:1500 solution that can be made by dissolving 4.3 g of cetylpyridinium chloride in…

A: 1:1500 solution  of cetylpyridinium chloride indicates that there  are 1g of cetylpyridinium present…

Q: Q 7 please

A: (7)  Given that sulfur ion (S-2)    We know that sulfur belongs to group 16 with atomic number of 16…

Q: Q10. Which of the following is paired correctly? A. H₂SO4 nonelectrolyte C. BaCl₂ weak electrolyte…

A:

Q: ❤ Part A The forensic technician at a crime scene has just prepared a luminol stock solution by…

A:

Q: How many grams of solute are contained in 200 mL of a 4%(wt/vol) solution? A. 8.0 В. 1.2 С. 0.4 D.…

A: Given that -  % (wt/vol) = 4%  Volume of Solution = 200 mL    Then , from following formula -  %…

Q: How many milliliters of 11.0 M HCl(aq) a V = are needed to prepare 545.0 mL of 1.00 M HCl(aq)? mL

A: We have to calculate the amount of milliliters of 11.0 M HCl(aq) are needed to prepare 545.0 mL of…

Q: what volume of a 0.257 M solution of K3PO4 will contain 23.0 g of K3PO4. (In liters)  what are the…

A: Titration is the quantitative method of estimating the strength of any component. Molarity is…

Q: 1. Justine, a BSMLS student was trying to dilute 100 mL of 5M of acid to 1M of the same acid. How…

A: M1 x V1 = M2 x V2 Where, M1 = Initial concentration M2 = final concentration V1 = initial volume  V2…

Q: What is the final molarity when 250ml 0.35M KBr is mixed with a)150mL water b)150 mL 0.25 Kbr

A:

Q: What volume of a 0.312 M hydroiodic acid solution is required to neutralize 26.5 mL of a 0.149 M…

A:

Q: convert the concentration of 0.700 M Na2SO4 to g/mL

A:

Q: 5. Calculate the molarities of the following solutions. a. 87.2 g of NazSO4 in enough water to make…

A:

Q: Q12. What are the reacting ions in the following reaction? Pb(NO3)2 + 2NaCl-PbCl₂ + 2NaNO B. Pb²+,…

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus, For…