If a student wants to make 230.0 mL of a 4.35M stock solution of Fe(NO 3) 3, how many grams of solid, anhydrous iron (III) nitrate do they need to use?   A 266 g   B 4.71 g   C 3.15 g   D 171 g   E 242 g

Q: What volume (in mL) of a 0.500 M stock solution of NaNO₃ would you add to a 1.000 L volumetric flask…

A: We know that V1S1 = V2S2  where, V1 = volume of NaNO3 required = ?  S1 = strength of NaNO3 = 0.5 M…

Q: Concentration of DDT (molar mass= 354.49 g/mol) in groundwater sample is found to be 0.030 mg/250.0…

A: We have to predict the concentration in mmol/L.

Q: In the lab, a student makes a solution of CaCl 2 by dissolving 9.0 grams of solid in 425 mL of…

A: We have given that  Mass of CaCl2 = 9 gram  Volume of solution = 425ml = 0.425L  We know that…

Q: You dilute 35.00 mL of 1.12 M K2SO4 to a volume of 250.00 mL of pure water. What is the…

A: The objective of the question is to determine the concentration of  in the diluted solution.

Q: An aqueous solution contains 2.52 g of Pb(NO3)2 in one liter.  How many moles of each ionic species…

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 volume of 0.100 M NaOH is required to precipitate all of the nickel (II) ions from 150.0 mL of…

A: Given,  Molarity of NaOH = 0.100 M  Volume of Ni(NO3)2 = 150.0 mL  Molarity of Ni(NO3)2 = 0.347 M…

Q: A sample of 7.90 g of Mg(OH)2 is added to 25.6 mL of 0.225 M HNO3. a.) Write the chemical equation…

A: (a) When magnesium hydroxide added with nitric acid, Following balanced Chemical Reaction occurs -…

Q: You dissolve 0.250 mol of potassium sulfate into 650 mL of water. What is the concentration of your…

A: Given:  Moles of potassium sulphate = 0.250 mole  Volume of water = 650 ml  Molarity(M) = (No. of…

Q: .A student takes 20 mL of 3M HNO3 solution and dilutes it to 250 mL i a volumetric flask. What is…

A: Molarity = number of moles / Litre

Q: A 1000 mL sample of seawater was found to have contained 40 ?g of Hg2+ ions. What is the…

A: This question is related to stoichiometry. In this question, volume and density of seawater sample…

Q: What volume (L) of 0.450 M HNO3 is required to neutralize a solution prepared by dissolving 23.5 g…

A:

Q: Define

A: Introduction: The number of moles of solute in 1L of  solution is called Molarity

Q: at mass a

A:

Q: A student is performing a titration experiment to determine the concentration of a Nitric Acid…

A: We have to calculate the concentration of nitric acid in the sample.

Q: A student was tasked to neutralize 25.8 mL solution of 0.379 M H2SO4 (98.079 g/mol) using 0.562 M…

A: Given-> Volume of H2SO4 = 25.8 ml  Molarity of H2SO4 = 0.379 M Molar mass of H2SO4 = 98.079…

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: A chemist has a solution made from 1.923 kg of ammonium phosphate dissolved in 2.1 L of water. They…

A:

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: If a student wants to make 205.0 mL of a 1.12M stock solution of SrCl 2, how many grams of solid,…

A: Given that : The volume of stock solution = 205.0 mL Molarity of stock solution = 1.12 M We have to…

Q: Distilled water was added to 10.00 mL of 12.0 M HCl stock solution in a 2000. mL flask. What is the…

A: Given: Volume of HCl stock solution = 10.00 mL Molarity of HCl stock solution = 12.0 M Volume of…

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 567 mg of chloride…

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

Q: eus to prepare 250 mL of a 0.500 M aqueous solution of sucrose, C12H22 biological experiments. (aq),…

A: The objective of the question is to determine which type of glassware is to be used for the…

Q: A student finds that it takes 46.16 mL of 0.2915 M NaOH to titrate 20.00 mL of sulfuric acid…

A: The reaction between Sulfuric acid (H2SO4) and Sodium hydroxide(NaOH) is given as:H2SO4 + 2 NaOH →…

Q: A solution is prepared by dissolving 25.0 mL ethanol, C₂H5OH (density = 0.789 g/mL), in enough water…

A: The volume of the ethanol is .The density of the enthanol is .The volume of the solution is .To find…

Q: If a student wants to make 175.0 mL of a 5.85M stock solution of MnCl 2, how many grams of solid,…

A: Given  Volume of solution = 175 ml Molarity of solution = 5.85 M

Q: Potassium chlorate, potassium chloride, and water is produced by passing chlorine gas into a hot…

A: Given : volume of potassium chlorate  = 694.45 ml Molarity of potassium chlorate = 4.06 M  Density…

Q: What mass of Mg(OH)2 in grams are in 215 mL of a .0350 M solution of Mg(OH)2?

A: Given  Molarity of solution = 0.0350 M Volume of solution = 215 mL   = 0.215 L Mass of Mg(OH)2…

Q: a chemist wants to make 5.5l of a 0.300 M CaCl2 solution. What mass of CaCl2 (in g)  should the…

A: Given: Volume of solution = 5.5 L And concentration of CaCl2 = 0.300 M

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…

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Q: What mass of Na2SO4 is required to precipitate all of the lead cations found in an 18.5 ml sample of…

A:

Q: Twenty grams of potassium dichromate (K2Cr207) is dissolved in 150 mL of water. The solution was…

A:

Q: What volume of 0.100 M NAOH is required to precipitate all of the nickel (II) ions from 150.0 mL of…

A: Reaction for the above query will be :  2NaOH(aq) + Ni(NO3)2 (aq) ------> 2NaNO3(aq) + Ni(OH)2(s)…

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: What mass of oxalic acid dihydate, H2C2O42H2O, is needed to make a 0.498 mol solution of oxalic acid…

A: Given, Number of mol H2C2O4.2H2O = 0.498 mol Volume = 250.0 mL Since, 1000 mL = 1 L  or        1 mL…

Q: The solubility of the hydroxide of a hypothetical metal, Me, in water is 84.08 g MeOH per 47.18 mL…

A: Given,  Solubility of MeOH in water = 84.08 g/47.18 mL  Calculate amount of water in mL needed to…

Q: A sample of seawater from a tidal estuary was found to contain a concentration of 687 mg of chloride…

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

Q: In an oxidation reaction, Iron (II) iodide converted into Iron (III) oxide and iodine gas, What…

A: The given chemical reaction is: 4FeI2+3O2→2Fe2O3+4I2 According to the balanced chemical reaction, 4…

Q: 12.8 mL of 0.0354 M potassium permanganate solution is used to titrate 0.188 g of an unknown sample…

A: Given -> Volume of KMnO4 = 12.8 ml = 0.0128 L (1L = 1000ml) Molarity of KMnO4 = 0.0354 M Weight…

Q: The concentration of sodium chloride in blood serum is 0.140 M. What volume of blood serum contains…

A: Molecular weight of NaCl = (23+35.5) = 58.5 gm/mol  So, 6.07 gm of NaCl = 6.07/58.5 = 0.10376 moles…

Q: How would you make 100.0 mL of 0.220 M NaCl(aq) solution using a 100.0 mL volumetric flask?

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

Q: 5.32 x 1023 molecules of sucrose (table sugar) is dissolved in water to create a 1.78L solution.…

A: