A chemist makes 730.mL of potassium dichromate K2Cr2O7 working solution by adding distilled water to 220.mL of a 0.139molL stock solution of potassium dichromate in water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits.

Q: A chemist prepares a solution of sodium chloride (NaCl) by weighing out 2.346 g of sodium chloride…

A: Concentration (w/V) = wt of solute in gram /volume of solution in Litre (V ltr)

Q: Calculate the volume in mL of the iron(III) bromide stock solution that the chemist should pour out.

A:

Q: A chemist must prepare 650. mL of 81.0 µM aqueous zinc oxalate (ZnC,0,) working solution. She'll do…

A:

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 dilute 92.1 mL of 1.46 M aqueous nickel(II) chloride (NiC1₂) solution until the…

A: This is a dilution problem. Here we can use the formula  C1×V1 = C2 × V2 Where C1=Concentration of…

Q: A chemist adds 975.0 mL of a 9.36 g/dL sodium hyposulfate (Na, S,0,) solution to a flask. Calculate…

A: The ratio of moles to the volume in liters is known as molarity.

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: A chemist makes 930. mL of potassium iodide (KI) working solution by adding distilled water to 210.…

A: Given 210 mL of 6.29 M solution diluted to volume of 930 mL then the concentration of new solution…

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

A:

Q: mol A chemist makes 240. mL of mercury(II) iodide (HgI₂) working solution by adding distilled water…

A: Given, Note: 1000 mL = 1 L Stock solution: Concentration of mercury (II) iodide (M1) = 0.000117…

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

A:

Q: A chemist must prepare 500. mL of 1.00 M aqueous barium chlorate (Ba(Cl03),) working solution. He'll…

A: From the provided stock solution of 1.22M Barium chlorate solution, 500mL of 1M aqueous barium…

Q: Alondr A chemist makes 260. mL of iron(II) bromide (FeBr,) working solution by adding distilled…

A: Dilution Equation M1V1 = M2V2M1 = Initial Molarity (stock Solution)V1 = Initial volumeM2 = final…

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

A:

Q: A chemist must dilute  40.6mL  of  105.μM  aqueous silver(II) oxide  AgO  solution until the…

A: Given: Initial concentration (original solution), M1 = 105 μM The initial volume (original…

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 prepare  225.mL  of  55.0mM  aqueous potassium permanganate  KMnO4  working…

A:

Q: A chemistry student weighs out 0.154 g of sulfurous acid (H, SO,), a diprotic acid, into a 250. mL…

A: Given: mass of sulfurous acid (H2SO3) = 0.154 g Volume of sulfurous acid  solution = 250 mL…

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 must dilute 33.3 mL of 592. mM aqueous barium chlorate (Ba(CIO,)) solution until the…

A: During dilution the formula to be used is V1 S1 = V2 S2 where, V1  = initial volume S1 = initial…

Q: A chemist prepares a solution of aluminum chloride (AlCl,) by measuring out 20. umol of aluminum…

A: Given : Moles of AlCl3 = 20 µmol And volume of solution = 250 mL = 0.25 L…

Q: A chemist must dilute 20.6 mL of 22.0 mM aqueous aluminum sulfate (Al, (SO,)) solution until the…

A: In dilution, the millimoles or moles of solute remains same before & after dilution (Dilution…

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: A chemist prepares a solution of potassium iodide (KI) by weighing out 37.1 g of potassium iodide…

A: Interpretation - To determine the concentration of potassium iodide solution in ( g/dL ) when a…

Q: Calculate the volume in mL  of the potassium dichromate stock solution that the chemist should pour…

A:

Q: A chemist must prepare 775.mL of 1.00M aqueous barium chloride, BaCl2, working solution. He'll do…

A: Given, V1 =  775.mL M1 = 1.00M V2 = ? M2 = 1.73M

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 potassium dichromate (K₂Cr₂O₂) by measuring out 9.94 μmol of…

A: A homogeneous mixture of two or more substances is known as a solution. The species which present in…

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

A:

Q: A chemist prepares a solution of zinc oxalate (ZnC,0,) by weighing out 0.837 kg of zinc oxalate into…

A: we need to report the answer in g/dL concentration = mass of solute (in g )/ volume ( in dL) mass of…

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

A:

Q: A chemist makes 980. mL of copper(II) fluoride (CuF,) working solution by adding distilled water to…

A: The given information is: Concentration of stock solution = 2.45 mM Converting the value of stock…

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

A:

Q: he flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium…

A: Given   A chemist prepares a solution of potassium dichromate (K2Cr2O7) by measuring out 19.4g of…

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

A:

Q: A hollow square metal tube has a measurement of 2.42 in for each side and a weight of 53.71 g. The…

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 prepare 350.mL of 235.mM aqueous potassium permanganate KMnO4 working solution.…

A:

Q: A chemist must dilute 99.9 mL of 161. mM aqueous silver perchlorate (AgClO,) solution until the…

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

Q: A chemist prepares a solution of potassium dichromate (K₂Cr₂O7) by measuring out 43.6 µmol of…

A: Given :-  No.of moles of K2Cr2O7 = 43.6 umol  Volume of solution = 300. mL  To calculate :…

Q: A chemistry student weighs out 0.0281 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A: Equivalence point: the titration point at which the quantity of titrant applied is adequate to fully…

Q: A chemist must dilute 82.6mL of 51.0 mM aqueous potassium permanganate  KMnO4 solution until the…

A: In the dilution process, the relationship between initial and final concentrations and volumes of…

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

A:

Q: A chemist must dilute 51.9 mL of 65.6 uM aqueous mercury(II) iodide (Hgl,) 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.