If you dissolve 401 grams of (NH4)3PO4 in enough water to make 250 mL of solution, how many moles of ammonium ions will be present in the resulting solution?    Report your answer to 1 decimal place with no units.  Do NOT use scientific notation.

Q: How many mL of water do you need to add to 126 mL of a 0.53 M solution of acetone in order to create…

A: The solution of acetone contain acetone as a solute and water as a solvent. Thus for dilution of…

Q: What volume (in mL) of a 0.98 M HNO3 solution must be diluted to prepare 0.98 L of 0.28 M HNO3?…

A: Given : Concentration of stock solution of HNO3 = 0.98 M Concentration of final diluted HNO3…

Q: 350 mL of a 2.0 M NaOH solution is added to a beaker.  How many moles of NaOH were added?  How many…

A: Molarity ( M ) :-  The number of moles of solute present in dissolved state in one litre of solution…

Q: 189 mL of a 1.9 M solution of KBr is diluted to 668 mL. What is the new concentration of the…

A: Answer 8 :-  New concentration of solution = 0.537 M

Q: astronauts on the International Space Station are staying​ healthy, so they have them routinely test…

A:

Q: A chemist needs 16.63 mL of 1.816 M NaOH. What volume in mL of 3.97 M NaOH must be diluted in water…

A: During dilution with water the number of moles before dilution and after dilution remains constant.

Q: What is the molarity of a solution prepared by dissolving 245.1 grams of Mg3(PO4)2, in enough water…

A: Given data, Mass = 245.1 g Volume = 1.8 L To calculate the molarity.

Q: What is the molarity of a solution prepared by dissolving 226.8 grams of Mg3(PO4)2 in enough water…

A: Given Mass of Mg3(PO4)2 = 226.8g Total volume of Mg3(PO4)2  solution = 2.4 L Molarity of Mg3(PO4)2…

Q: Determine the molarity of a solution formed by dissolving 19 g of NaBr in enough water to yield 755…

A: Number of moles of a substance is equal to the mass of a substance divided by its molar mass.

Q: How many moles of NaCl are in 4,656 mL of a 4.38 M solution? Report your answer with 3 decimal…

A: Molarity = Number of moles / Volume of solution in litre. 1 litre = 1000 mL

Q: How many moles of NaCl are in 4,770 mL of a 3.71 M solution? Report your answer with 3 decimal…

A:

Q: How many grams of NaOH would you need to make 3,243 mL of a 7 M NaOH solution (m.w. = 40.00 g/mol)?…

A: Given, volume = 3243 ml = 3.243 L Molarity = 7 M  Molar mass of NaOH = 40.00 g/mol

Q: The ocean is a heterogeneous fluid with different concentrations of zinc at different depths.…

A: Conceptual interpretation - As we know that ocean is the heterogeneous fluid with different…

Q: Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/moland a…

A:

Q: What is the molarity of a solution prepared by dissolving 4.20 g NaF in enough water to make 0.400 L…

A: Molarity is defined as  Molarity = moles of solute / volume of solution in L  Since volume of…

Q: When you dilute 0.101L of a 1.86M solution of LICI to 2L, what is the final molar concentration of…

A: Initial volume = 0.101 L  Initial concentration = 1.86 M  Final volume = 2 L  Final concentration =…

Q: What is the molarity of a solution prepared by dissolving 172.2 grams of Mg3(PO4)2 in enough water…

A: Number of moles of a chemical compound is used to measure the amount of the compound in the given…

Q: Calculate the sodium hydroxide (MW = 39.997 g/mole) concentration in units of moles per kilogram of…

A: The solution is as follows:

Q: How many grams of calcium hydroxide are required to completely neutralize 475 mL of 0.48 M…

A:

Q: How many moles do you need to prepare 1.481 L of a 1.77 M NaOH solution? Round your answer to 2…

A:

Q: What is the molarity of a solution prepared by dissolving 176.1 grams of Mg3(PO4)2 in enough water…

A: Given :- mass of Mg3(PO4)2 = 176.1 g                Volume of solution = 1.5 L  To calculate :-…

Q: Suppose 0.921g of sodium acetate is dissolved in 100.mL of a 41.0mM aqueous solution of ammonium…

A: The reaction for the above process is given below. 2CH3COONa     +     (NH4)2SO4     → Na2SO4      +…

Q: How do you calculate the density of a 48.9ml solution of 1.2590M HCl? What about the density of a…

A: Calculate the number of moles of HCl: 1 mL = 0.001 L

Q: Suppose 1.87 g of zinc bromide is dissolved in 150. mL of a 0.10 M aqueous solution of potassium…

A: Moles of Znbr2=(1.87/225)=0.00831  Moles of Br-=2*0.00831=0.01662

Q: What is the molarity (moles/L) of the solution made from mixing together 652 mL of water with 64.3…

A:

Q: Suppose 0.433 g of zinc chloride is dissolved in 150. mL of a 19.0 m Maqueous solution of potassium…

A: Given, The mass of zinc chloride = 0.433 g. Volume of potassium carbonate = 150. mL Molarity of…

Q: Calculate the mass percent of a solution that is prepared by adding 54.8 g of NaOH to 461 g of H₂O.…

A:

Q: What volume of 5.0 M sucrose solution is needed to make 3.00 L of 0.043 M sucrose solution? _____ mL…

A: This problem can be solved by using the molarity equation which may be writtenas :…

Q: How many mL of water do you need to add to 171 mL of a 0.42 M solution of acetone in order to create…

A: Initial concentration, M1 = 0.42 M The initial volume of solution, V1 =171 mL Final concentration,…

Q: What is the concentration of a NaCl solution made from taking 22.64 mL of a 12.67M NaCl solution and…

A: Given information: Initial volume (V1) = 22.64 mL Final volume (V2) = 1.25 L Initial concentration…

Q: How many grams of MgF2 are needed to prepare 673.9 mL of 0.135 molar aqueous MgF2? Put answer in box…

A:

Q: Calculate the original concentration of a solution if 50 mL of the original solution was diluted to…

A: Here we are required to find the concentration of original solution when original solution is…

Q: Determine the molarity (in mol/L) of nickel(II) sulfate when 2.78 g of nickel(II) sulfate is…

A: Molarity of any solution can be calculated by using the formula :          Molarity = Number of…

Q: Calculate the maximum volume in mL of 0.15 M HCI that a tablet containing 343 mg Al(OH)3 and 489 mg…

A: Given the molarity of HCl titrated = 0.15 M or 0.15 mol/L Al(OH)3 is triacidic base and Mg(OH)2 is a…

Q: Sodium carbonate is used in toothpaste where it acts as a foaming agent and an abrasive. Calculate…

A:

Q: What mass of phosphoric acid is needed to react with 102 ml of 3.1 M calcium hydroxide? Please…

A: i) Normality of Ca(OH)2 : Since Ca(OH)2 is a di acidic base , n-factor =2 N = M x n -factor     =…

Q: What mass ( in g ) of NaCl is needed to make 330 g of a 27.0% NaCl solution? Report your answer to 2…

A: NaCl = 27% 1gram = 1 milliliter so, Volume = 330 ml Mass of NaCl = ?

Q: What is the percent by mass NaCl of a solution that contains 56.0 grams of BeO and 138.0 grams of…

A: Given: The mass of the solute, i.e;  BeO=56 g. The mass of  the solvent, i.e; H2O=138 g. Therefore…

Q: How would the following errors affect the empirical formula for the compound? The student ran out of…

A: The heating is used in this procedure so as to eliminate to the most the molecules of water. Start…

Q: What mass of potassium permanganate would be required to make 500.0 mL of solution with a…

A: When two compounds are mixed together and they form a solution. The compound which is present in…

Q: O CHEMICAL REACTIONS Calculating molarity using solute moles A chemist prepares a solution of…

A: Given, Note: 1 µmol = 10-6 mol Moles of FeBr3 = 85 µmol = 85 × 10-6 mol Note: 1 mL = 10-3 L Volume…

Q: What is the volume in liters that is needed to create a 2.3 M solution with 4.0 moles of Fe(OH)2?…

A: Given: Concentration of Fe(OH)2 ,Molarity,  [Fe(OH)2] = 2.3 M no of moles of Fe(OH)2 = 4.0 mol   To…

Q: If a student calculated that 0.0035 moles of acetic acid present in a 5.0mL sample of vinegar. Then…

A: given: moles of acetic acid = 0.0035 moles molar mass of acetic acid = 60.052 g/mol mass of acetic…

Q: How many grams of MgCly are needed to prepare 665 mL of 0.881 molar aqueous MgCl?

A: Given :-  volume of MgCl2 solution = 665 mL  molar concentration of MgCl2 solution = 0.881 M or…

Q: If you are going to dilute 125 mL of 1.50 M AgNO3 solution so that the final volume is 215 mL, what…

A: Given;

Q: Suppose 0.0387 g of sodium iodide is dissolved in 200. mL of a 14.0 m M aqueous solution of…

A: We know that Molarity = number of moles of solute / volume of the solution in L Given that mass of…

Q: How many moles of NaCl are in 2,281 mL of a 9.58 M solution? Report your answer with 3 decimal…

A:

Q: What is the molarity of a 2.54 moles of Li,S03 dissolved to make 34.55 liters of solution? Please…

A: Given: 2.54 mole 34.55 L of solution

Q: How many grams of sucrose (molar mass = 342.3 g/mol) are needed to make 550.0 mL of a 0.31 M…

A:

Q: CALCULATIONS Set up each problem completely and SHOW UNITS. Cancel the units when you do the…

A: Given that, Mass of KH2PO4 sample = 0.0900 g = 90 mg Volume of water = 250 mL = 0.25 L 1)…