A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4Na3PO4, for a laboratory experiment. How many grams of Na3PO4Na3PO4 will be needed to produce 375 mLmL of a solution that has a concentration of Na+Na+ ions of 0.800 MM ? Express your answer to three significant figures and include the appropriate units.

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: Sulfuric acid (H2SO4) is a strong acid because it dissociates completely in water. Calculate the…

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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: 250.0 mg of copper(II) sulfate pentahydrate (CuSO4•5H2O, 249.69 g/mol) was dissolved in water to…

A: Since mass of CuSO4•5H2O used = 250 mg = 0.25 g              (since 1 g = 1000 mg) Hence moles of…

Q: A student titrates an unknown amount of potassium hydrogen phthalate with 26.86 mL of 0.1000 M NaOH.…

A: Since the potassium hydrogen phthalate is a monoprotic acid. hence it will have only 1 mole of…

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: Standardization of a sodium hydroxide solution against potassium hydrogen phthalate (204.2 g/mol)…

A: First, calculate the moles of KHP: Moles of KHP = mass/molar mass = 0.8365g/(204.2gmol-1) = 0.004096…

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

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Q: In a household ammonia, there is 4.25 g of NH3 in 500 mL of solution. Express the said concentration…

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Q: Calcium nitrate  (Ca(NO3)2 ; MM =164.0878 g/mol)) dissolves in cold water to the extent of 266 g per…

A: Given: Calcium nitrate [Ca(NO3)2] dissolves in cold water to the extent of 266 g per 100 mL Ca(NO3)2…

Q: Define

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

Q: A 25.0 mL of  a H2SO4 solution requires 38.2 mL of a 0.163 M NaOH solution for complete…

A: Balanced neutralization reaction is H2SO4  + 2NaOH ------> Na2SO4 + 2H2O

Q: You have 15 mL of a 0.25 M NaCl(aq) solution. What volume should you dilute it to in order to obtain…

A: Given: The initial volume (V1) of NaCl (sodium chloride) solution is 15 mL The initial molarity (M1)…

Q: A student has 510.0 mL of a 0.1345 M aqueous solution of CoCl2 to use in an experiment. She…

A: When cobalt chloride is left uncovered for a week, it evaporates most of the water and left behind…

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: Suppose 38.6 g of iron(II) iodide is dissolved in 350. mL of a 0.50 M aqueous solution of silver…

A:

Q: Lead-acid batteries, like the ones in most cars, contain layers of lead plates immersed in sulfuric…

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Q: You are given solutions of HCl and NaOH and must determine their concentrations. You use 27.5 mL of…

A: Given :             27.5 mL of NaOH to titrate 100.0 mL of HCl             18.4 mL of NaOH to…

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: volume

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Q: Aluminum hydroxide is one component of antacids for hyperacidity. If one tablet contains 178 mg,…

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Q: The water in a certain pool has a concentration of 3.38 mg/L of Fe^3+ ions. Express this value as…

A: Given  Concentration of Fe3+ = 3.38 mg/L Concentration in parts per billion =?

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: 30.00 mL of nitric acid (HNO3) with an unknown concentration was placed into an Erlenmeyer flask.…

A: Given, the Volume of nitric acid = 30.00mL the volume of Ca(OH)2 = 25.36mL molarity of Ca(OH)2 =…

Q: A 0.09948 M solution of NaOH was used to titrate a solution of an unknown concentration of HCl. A…

A: Molarity of the HCl solution can be determined using the given expression,

Q: What is the total concentration of ions in a 310.5340 mM solution of LiClO4? Express your answer in…

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Q: The concentration of copper(II) sulfate in one brand of soluble plant fertilizer is 0.0700% by…

A:

Q: A student wants to prepare 560.0 mL of a 0.210 M solution of Li2CO3.  What mass of Li2CO3 must be…

A: Given that; Molarity of Li2CO3 = 0.210 M Volume = 560.0ml = 560.0ml × 1L/1000ml = 0.560 L  Molar…

Q: How many grams of barium acetate, Ba(CH3 COO)2 , must be dissolved to prepare 250. mL of a 0.218 M…

A: The amount of a solute dissolved in a specified volume of the solvent is expressed by the…

Q: Ethylene glycol is the primary component in antifreeze. How many grams of ethylene glycol…

A: Volume of solution = 163 mL  Volume of solution in L = 0.163 L  Molarity of solution = 3.108 M  We…

Q: The concentration of citric acid (H3C6H5O7) in citric fruits ranges from 0.005 M to 0.30M. Consider…

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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: A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4Na3PO4, for a laboratory…

A: Given data contains, Volume of solution is 300mL. Concentration of sodium ions is 1.40M. The…

Q: A phosphate solution is prepared by mixing 0.2 M Monosodium phosphate (NaH2PO4) stock solution and…

A: Here, the final solution volume is 10 mL.

Q: A chemistry student weighs out 0.218 g of ascorbic acid (H,C,H,O), a diprotic acid, into a 250. mL…

A: Given: mass of ascorbic acid = 0.218 g Molar mass of ascorbic acid , H2C6H6O6 = 176 g/mol No. of…

Q: - Determining the volume of base needed to titrate a given mass... A chemistry student weighs out…

A:

Q: 30.00 mL of nitric acid (HNO3) with an unknown concentration was placed into an Erlenmeyer flask.…

A: Given data,Volume of nitric acid=30.0mL=0.030LMolarity of calcium hydroxide=0.1498MVolume of calcium…

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: 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 0.15 M solution of HCl is used to titrate 30.0 mL of a Ca(OH)2 solution of unknown concentration.…

A: Normality Normality is the gram equivalent weight of the solute dissolved per liter of solution.…

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: -mass concentration of acetic acid (CH3COOH) in a vinegar solution that contains 65.20 g acetic acid…

A: Mass of acetic acid = 65.20 g Volume of solution = 1.000 L = 1000 mL (1L = 1000mL) density of…

Q: 150.00 grams of Iron (III) sulfate is dissolved in enough water to prepare 200.0 ml of solution.…

A:

Q: A chemist adds 265.0 mL of a 0.0539uM copper 2 sulfate (CuSO 4 ) solution to a reaction. Calculate…

A: Step 1:This is a conversion problem. It is easier for me to convert the given to its standard units…

Q: The maximum contaminant level of cyanide (CN) in drinking water as set by the the Environmental…

A: The maximum contamination level of the cyanide in the drinking water is 0.00020 g.L-1. This…

Q: You are given 25.00 mL of a hydrochloric acid solution of unknown concentration.  You find it…

A: The objective of this question is to find the molarity and percentage of HCl in the given solution.…