You want to prepare 450.0 mL of a 145 ppm K+ ion solution.  The density of the solution is 1.01 g/mL.  You have at your disposal a solution that is 0.728 M in K2SO4.  How many mL of the K2SO4 solution do you need to use? 1.16 mL 3.75×10−6mL 2.56 mL 0.860 mL 116 mL

Q: What is the ppm concentration of 6.00 mL sample of solution that has 3.6 × 10^-4 g of sodium ions?

A: Given mass of sodium (solute)= 3.6 × 10^-4 g Volume of solution = 6.00mL Concentration in ppm =?

Q: Calculate the molarity of each of the following solutions.  0.450 mole of urea (CH4N2O) in 2.50 ×…

A: The molarity is given by the formula  as follows: Molarity=MoleVolumeL

Q: How many grams of sodium hydroxide is required to make 250.0 mL of a 0.410 M sodium hydroxide…

A: Given,  The molarity of sodium hydroxide ( NaOH) = 0.410 M.  The volume of the solution = 250.0 mL.…

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: A student needs to prepare a 500.0 mL solution of 0.150 M Zn(NO3)2. How many grams of Zn(NO3)2 is…

A:

Q: What mass in grams of the dihydrate H2C2O4 • 2 H2O (molar mass = 126.0 g/mol) is needed in order to…

A: Molarity (M) is a concentration term for a solution. The molarity of a given solution is defined as…

Q: uppose 7.94 g of ammonium sulfate is dissolved in 100. mL of a 0.70 M aqueous solution of sodium…

A:

Q: If you were asked to make a 100.0 mL solution with 36.15 g of potassium permanganate (KMnO4), what…

A: The given mass of KMnO4 = 36.15 g The desired volume of the solution = 100.0 ml   Given molar…

Q: A normal level for sodium ion (Na+Na+) in human blood is 0.140 MM. How many grams of sodium ion are…

A: Given ->  Concentration of Sodium ion = [Na+] = 0.140 M  Volume= 75.0 ml = 0.075 L (1L = 1000ml)…

Q: What is the minimum volume of a 1.80 M NaOH solution needed to make 150.0 mL of a 0.800 M NaOH…

A: Step 1: A solution's molar concentration, or molarity, will decrease as its volume increases. In…

Q: If 400 mL of water is added to 250 mL of a 2.4 M MgCl2 solution, what is the final concentration of…

A: Introduction: Molarity:  Molarity is often used to express the concentration of the solution. It is…

Q: A solution is made by dissolving 0.835 grams of KMnO4 in 500.00 grams of water. The solution formed…

A: Given,Mass of KMnO4 =0.835 gramsMass of water = 500 grams The density of water = 1.05 g/mLMolar Mass…

Q: What is the mass % of propylene glycol in a 2.77 M solution of propylene glycol (MM = 76.09 g/mol)…

A: Mass percent shows the mass of solute present during a given mass of solution.  Mass percent is…

Q: A student pours 350 mL of a 6.0 molar solution of sodium hydroxide into a 750 mL volumetric flask…

A: Given data : Initial volume of the solution = 350 mL = 0.35 L Molarity = 6 M So, Number of…

Q: A 4.90% by mass solution of KCl has a density of 1.03 g/mL. What is the molarity of this solution?…

A:

Q: How many g of sodium ions are in 250 mL of 0.20 M NazSO4 solution? (Na2SO4: 156 g/mol , Na: 23…

A: first find the amount of Na2SO4 then find Fraction composition of Na in  Na2SO4 Then Multiply…

Q: I add 2.00 g NaCl and 6.42 g BaCl₂ to a a container. You can assume that both of these salts are…

A:

Q: 1. Convert 5% by mass acetic acid (MM = 60.052 g/mol) to molarity. 2. How many moles of acetic acid…

A: PART 1.Given:mass % of acetic acid =5% (m/m)Let, mass of acetic acid= 5g∴ mass of solution =100gmass…

Q: To prepare a solution of 48.9 mM sucrose, a student combines 43.0 mL of a sucrose stock solution…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: If a student wants to make 235.0 mL of a 3.25M stock solution of CuCl 2, how many grams of solid,…

A: Given : Volume of stock solution = 235 ml Molarity of stock solution = 3.25M

Q: Part C You need to prepare a 2.30  M � solution of potassium bromide (molar mass of potassium…

A: The objective of the question is to determine the mass of potassium bromide required to prepare a…

Q: You need 500 mL of a 0.5 M iron(III) chloride solution. You only have a 3.0 M FeCl3 solution on…

A: For constant number of moles, the product of molarity and volume of a solution is constant.

Q: You need 500 mL of a 0.5 M iron(III) chloride solution. You only have a 3.0 M FeCl3 solution on…

A: On dilution of the FeCl3 solution with the pure water, the mole of solute (FeCl3) remains constant…

Q: In the laboratory you dilute 4.36 mL of a concentrated 6.00 M nitric acid solution to a total volume…

A:

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: what are the materials for the preparation of 0.25 M Hydrochloric acid (HCl) solution using 3.86 mL…

A: We can solve this problem by recall the formula  of molarity Molarity = mole of solute/volume of…

Q: 1. What is the molarity and normality of a Ca(OH)2 (MM = 74 g/mol) solution if a 500 mL solution…

A: Mass of Ca(OH)2 = 7.400 gVolume of solution = 500 mL = 0.500 LMolarity of solution = ? Normality of…

Q: 56. Determine the molarity of 2.54 kg of CuSO4 • 5H20 in 1.51 L of solution. Record your answer in…

A:

Q: What is the concentration of a solution made with 0.335 moles of KOH in 400.0 mL of solution? What…

A: As of you asked multiple Questions in a single session, i am answering first 3 Questions. And for…

Q: A student is asked to prepare 250 mL of a 0.0104 M NaCl solution. The student found a stock bottle…

A: Given: A student has to prepare 250 mL of 0.0104 M NaCl solution using 34.7 mL of 0.0723 M NaCl…

Q: Calculate the volume of solution in liters, L, needed to prepare a 0.650 M solution from 180.0 g of…

A: The objective of this question is to calculate the volume of solution needed to prepare a 0.650 M…

Q: To what volume should you dilute 150.0 ml of an aqueous 4.00 M potassium phosphate solution so that…

A: The process of dilution is defined as the process in which a solution with a lower concentration is…

Q: To prepare a 250 mL, 0.55 M NaOH solution from a 0.69 ±0.01 M stock solution, what is the volume of…

A: Given that:  Molarity of stock NaOH solution(M1) = 0.69M Molarity of final NaOH solution(M2) = 0.55M…

Q: Which of the following aqueous solutions contains the greatest number of ions? 200.0 mL of 0.10 M…

A: a)200mL of 0.10 MKBrMolarity of KBr =0.10MVolume of KBr solution=200mL=0.2Lmoles of KBr=Molarity of…

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: In the lab, a student makes a solution of KOH by dissolving 52.0 grams of solid in 255 mL of water.…

A:

Q: 3) It takes 29.61 mL of 0.246 M sodium hydroxide solution to titrate 10.00 mL of sulfuric acid…

A:

Q: A 15.0 mL 0.500 M NaNO3 solution is mixed with 50.0 mL 0.200 M Fe(NO3)3 solution. What is the molar…

A:

Q: What is the molarity of a solution made by dissolving 112.43 g of sodium sulfate, Na2(SO4) (142.04…

A: The mass of sodium sulfate (solute) is 112.43 g.The molar mass of the sodium sulfate is 142.04…

Q: An aqueous solution contains 71.26 g LiCl per 675 mL of solution. What is the molarity of this…

A:

Q: 50.00 mL of a 0.1001 M solution of HNO3 was prepared by diluting 8.00 mL of a stock solution.…

A:

Q: what volume of 18.0 M sulfuric acid is required to prepare 2.00 L of 0.150 Mg(NO3)2 solution

A:

Q: What volume of 0.252 M potassium hydroxide solution is required to completely neutralize 0.0106…

A: Chemical ReactionH3PO4 +3 KOH →K3PO4  + 3H2OMolarity of KOH = 0.252 MMoles of Phosphoric Acid =…

Q: 200.0 mL of a 0.700 M solution of KCI is diluted to 600.0 mL. What is the new concentration of the…

A:

Q: 10. What weight (in grams) of KCI is there in 2.50 liters of 0.500 M KCI solution?

A: To calculate the weight of KCl, we need to use the formula: mass = moles x molar mass