A chemist makes 610. mL of sodium carbonate (Na, CO,) working solution by adding distilled water to 250. mL of a 0.785 M stock solution of sodium carbonate in water. Calculate the concentration of the chemist's working solution. Be sure your answer has the correct number of significant digits.

Q: A chemist must dilute 39.5mL of 664.mM aqueous barium acetate BaC2H3O22 solution until the…

A:

Q: A chemist must prepare 450. mL of 1.00 M aqueous barium chloride (BaCl,) working solution. She'll do…

A: Molarity of stock BaCl2 solution(M1) = 1.27 M  Molarity of final BaCl2(M2) = 1.00 M V2 = 450. mL

Q: A chemist prepares a solution of aluminum chloride (AICI,) by weighing out 49.9 g of aluminum…

A: Given: grams of aluminum chloride = 49.9g Volume = 400mL The concentration value in g/dL is…

Q: A 10.00 mL solution of a certain food dye has a concentration of 1.47 g /L. What is the total mass…

A: Given: The concentration of food dye  solution, (C) = 1.47 g/L. The volume of the solution, (V) =…

Q: A chemist must prepare 625.mL of 149.μM aqueous magnesium fluoride MgF2 working solution. He'll…

A: Dilution is the solution obtained by adding more solvent in the stock (more concentrated) solution.…

Q: mol aqueous L A chemist must prepare 875. mL of 10.0 mM aqueous calcium sulfate (CaS0,) working…

A: On dilution, the concentration of solution decreases but the number of moles remain constant. Write…

Q: A chemist must prepare 750. mL of 115. mM aqueous copper(II) sulfate (CUSO,) working solution. He'll…

A: Given, Molarity of working solution = 0.115mM Volume of working solution = 750mL MOlarity of stock…

Q: mol aqueous L A chemist must prepare 650. mL of 4.00 M aqueous nickel(II) chloride (NiCl,) working…

A:

Q: A chemist must prepare 125. mL of 865. mM aqueous barium chlorate (Ba(CIo,)) working solution. He'll…

A: Moles of both solutions will be same. M1 × V1 = M2 × V2

Q: A chemist prepares a solution of potassium dichromate (K,Cr, O,) by measuring out 63.7 µumol of…

A:

Q: A chemistry student weighs out 0.0252 g of sulfurous acid (H,so,), a diprotic acid, into a 250. mL…

A: The molar mass of sulfurous acid is 82.07 g/mol. The number of moles sulphurous acid is calculated…

Q: A chemist prepares a solution of calcium bromide (CaBr, ) by measuring out 30.2 umol of calcium…

A: Given ; Moles of CaBr2 = 30.2 micromol And volume of solution = 300 mL

Q: A chemist makes 530. mL of copper(II) fluoride (CuF,) working solution by adding distilled water to…

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Q: A chemist must dilute 18.7mL of 23.4μM aqueous mercury(II) iodide HgI2 solution until the…

A:

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 2.3 x 10 umol of iron(II)…

A: Change micro mol to mili mol the volume in L. then divide it.

Q: A chemist must dilute  53.4mL  of  3.91M  aqueous iron(III) bromide  FeBr3  solution until the…

A: Since the chemist is diluting the solution by just adding the water. Hence the moles of FeBr3 will…

Q: A chemist must prepare 1000. mL of 320. mM aqueous calcium bromide (CaBr,) working solution. He'll…

A: Given, a chemist prepare a solution of calcium bromide(CaBr2 )from itsstock solution as…

Q: A chemist prepares a solution of nickel(II) chloride NiCl2 by weighing out  48.2g of nickel(II)…

A: The number of moles for a given chemical species refers to the ratio of mass to the molar mass. The…

Q: A chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 0.00744 umol of…

A:

Q: Calculate the mass (in grams) of oxalic acid (H2C2O4) needed to make 100.0 mL of a 0.250 M solution.…

A:

Q: A chemist must dilute 43.3 mL of 1.98 M aqueous iron(III) bromide (FeBr,) solution until the…

A:

Q: A chemist must dilute 54.1 mL of 6.21 M aqueous potassium iodide (KI) solution until the…

A:

Q: Dilution A chemist must dilute 75.7 ml of 2.28 mM aqueous copper(II) fluoride (CuF ,2) solution…

A: To solve this problem we will use the equation  M1V1 = M2V2  Here M is the concentration and V is…

Q: u

A: Calculate the mass (in grams) of oxalic acid (H2C2O4) needed to make 100.0 mL of a 0.250 M solution.…

Q: Calculate this final volume, in liters

A:

Q: A chemistry student weighs out 0.0513 g of sulfurous acid (H,SO,), a diprotic acid, into a 250. mL…

A: Given : Mass of H2SO3 taken = 0.0513 g And concentration of NaHH taken = 0.1500 M Molar mass of…

Q: A chemistry student weighs out 0.0263 g of sulfurous acid (H,SO,), a diprotic acid, into a 250. mL…

A: The reaction between H2SO3 and NaOH is given by reaction: H2SO3 + 2NaOH  ---> Na2SO3 + 2H2O…

Q: A chemist must prepare 650. mL of 1.00 M aqueous sodium chloride (NaCl) working solution. She'll do…

A: Given :-  concentration of stock solution = 1.24 M  concentration of dilute solution = 1.00 M…

Q: A chemist must dilute 52.1mL of 1.25M aqueous sodium carbonate Na2CO3 solution until the…

A: Given,V1 = 52.1 mlN1 = 1.25 MN2 = 1.00 MV2 = ?

Q: A chemist prepares a solution of sodium carbonate (Na, CO,) by measuring out 101. g of sodium…

A:

Q: A chemist must dilute 48.2 mL of 6.08 mM aqueous calcium sulfate (CaSO,) solution until the…

A: We have to dilute the given solution and calculate it's final volume

Q: A chemist prepares a solution of calcium sulfate (CASO) by weighing out 0.06781 g of calcium sulfate…

A:

Q: A chemistry student weighs out 0.145 g of sulfurous acid (H,SO,), a diprotic acid, into a 250. mL…

A: The solution is as follows :

Q: Calculate the volume in mL of the sodium nitrate stock solution that the chemist should pour out

A:

Q: A chemist must prepare 875. ml. of 335. M aqueous copper(II) fluoride (Cul) working solution. She'll…

A:

Q: A chemist makes 170. mL of aluminum sulfate (Al, (SO,) working solution by adding distilled water to…

A: Given: Concentration of stock solution = 1.83 mM Volume of stock solution taken = 130 mL And volume…

Q: A chemist must prepare 700. mL of 17.0 µM aqueous zinc oxalate (ZnC,0,) working solution. She'll do…

A:

Q: A chemist must prepare 450.mL of 370.mM aqueous potassium permanganate KMnO4 working solution.…

A: We have to calculate the volume of stock solution.

Q: A chemist must dilute 15.5 mL of 5.62 M aqueous sodium chloride (NaCl) solution until the…

A: Given, initial concentration of aqueous solution of NaCl =5.62 Minitial volume of solution =15.5…

Q: A chemist must prepare 600. mL of 5.00 mM aqueous copper(II) fluoride (CuF,) working solution. He'll…

A: V1=600mL C1=5.00mM=5×10^-3M. (1mM = 1×10^-3M) C2=0.00682M V2=?

Q: A chemistry student weighs out 0.0570 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A:

Q: A chemist prepares a solution of potassium permanganate (KMNO,) by weighing out 5.442 g of potassium…

A: To find concentration in g/L

Q: A chemist must prepare 275. mL of 5.00 mM aqueous calcium sulfate (CaSO,) working solution. He'll do…

A:

Q: A chemist must prepare 150. mL of 1.00 M aqueous iron(II) bromide (FeBr,) working solution. He'll do…

A: The concentration (M) of any solution can be expressed as follows: Concentration (M)  =  Number of…

Q: A chemist must dilute 80.6 mL of 82.1 uM aqueous mercury(II) iodide (Hgl,) solution until the…

A: Given : Initial concentration of HgI2 = 82.1 µM Initial volume of sample = 80.6 mL Final…

Q: A chemist prepares a solution of sodium chloride (NaCL) by measuring out 5.83g of sodium chloride…

A: The concentration of solution in mol/L is referred to as molarity of solution and is expressed as:…

Q: A chemist prepares a solution of zinc nitrate (Zn(NO,)) by weighing out 166. g of zinc nitrate into…

A: Given Mass of zinc nitrate =166g Volume of solution = 300mL Concentration of solution in g/L is…

Q: A chemist must dilute 84.5 mL of 9.07 M aqueous silver nitrate (AGNO,) solution until the…

A: The expression of dilution law is shown below: M1V1 = M2V2 Where; M1 = molarity of known solution V1…

Q: A chemist prepares a solution of mercury(II) iodide (Hgl,) by weighing out 7.148 mg of mercury(II)…

A: Given: weight of HgI2 is 7.148 mg volume of the solution is :150 ml No. of grams  of solute present…

Q: A chemist must dilute 53.4 mL of 2.90 M aqueous iron(III) bromide (FeBrz) solution until the…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.