A chemist prepares a solution of barium acetate BaC2H3O22  by measuring out  38.5g  of barium acetate into a  50.mL  volumetric flask and filling the flask to the mark with water.   Calculate the concentration in mol/L  of the chemist's barium acetate solution. Be sure your answer has the correct number of significant digits.

Q: A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 3.94 mg of zinc oxalate into…

A:

Q: A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 2.5 μmol of…

A: Given, Note: 1 µmol = 10-6 mol moles of potassium permanganate (KMnO4) = 2.5 µmol = 2.5 × 10-6 mol…

Q: A chemist prepares a solution of potassium iodide (KI) by weighing out 25.38 g of potassium iodide…

A: Mass of potassium Iodide = 25.38 g Volume of water = 100. mL The concentration is needed in the unit…

Q: You are assigned the task of separating a desired granular material, with a density of 3.26 g/cm°,…

A: Given: The density of desired granular material = 3.26g/cm3 The density of undesired granular…

Q: A chemist prepares a solution of magnesium fluoride MgF2 by measuring out 0.0042μmol of magnesium…

A: Given that: Moles of Magnesium fluoride = 0.0042μmol Volume = 450 mL = 0.450L Concentration =?

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: A chemist prepares a solution of barium chlorate BaClO32 by measuring out 63.μmol of barium…

A: Rules of significant figures: Any non-zero number is significant. Zeros between significant numbers…

Q: A chemist prepares a solution of nickel(II) chloride (NiCl,) by weighing out 78.0 g of nickel(II)…

A: Concentration is a definite amount of solute in a solvent .concentration is also the ratio of the…

Q: A chemist prepares a solution of mercury(I) chloride (Hg,Cl,) by measuring out 0.347 mg of…

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

Q: A chemistry student weighs out 0.0973 g of phosphoric acid (H3PO4, a triprotic acid, into a 250. mL…

A: Given:Mass of phosphoric acid=0.0973 gVolume=250 mLMolarity of NaOH=0.1100 M Conversion:From mL to…

Q: A chemist prepares a solution of potassium dichromate (K2Cr,07) by measuring out 35. umol of…

A: The conversion factor for µmol and mol units is:1 µmol = 10-6 mol Hence, 35 µmol = 35 × 10-6 mol…

Q: A chemist prepares a solution of nickel(II) chloride (NiCl,) by measuring out 4.2 umol of nickel(II)…

A: No. of mol of NiCl2 =4.2 μmol Conversion of μmol to mol: Conversion of mol into mmol:

Q: A chemist prepares a solution of potassium dichromate (K,Cr,0,) by weighing out 45.81 kg of…

A: To express concentration in terms of g/L : 1) Convert the given mass of potassium dichromate in Kg…

Q: A chemist prepares a solution of mercury(I) chloride Hg2Cl2 by measuring out 0.000957μmol of…

A: The concentration is approximately 3.83 x 10-9 mol/L

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

A:

Q: A chemist must prepare  225.mL  of  55.0mM  aqueous potassium permanganate  KMnO4  working…

A:

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

A: Given: Mass of potassium iodide (KI) = 37.1 g volume of solution = 100 mL The concentration of…

Q: A chemist prepares a solution of silver(I) nitrate (AgNO3) by measuring out 1.9 × 10 μmol of…

A:

Q: A chemist prepares a solution of aluminum sulfate (Al2 (SO4),) by measuring out 140. g of aluminum…

A: Molecular weight of aluminium sulphate Al2(SO4)3 is 342.15 gm/mol  According to the question 140 gm…

Q: A chemist prepares a solution of nickel(II) chloride (NICI,) by measuring out 1.2x 10 jumol of…

A: Moles of NiCl2=1.2×102 μmol Volume=250 mL

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 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 prepares a solution of zinc oxalate (ZnC₂04) by measuring out 1.47 mg of zinc oxalate into…

A:

Q: A chemist prepares a solution of iron(III) bromide (FeBr,) by weighing out 152.1 g of iron(III)…

A: Concentration: The concentration of a solution can be represented in several ways like g/L, ppm.…

Q: HUIA (OH]= 1.1 x 10° M [H,O'] = 5.0 x 107 M Milk

A:

Q: A chemist prepares a solution of sodium hyposulfate (Na₂S₂O3) by measuring out 200. μmol of sodium…

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

Q: A chemistry student weighs out 0.159 g of ascorbic acid (H,CH¸O.), a diprotic acid, into a 250. mL…

A: At equalvalence  point no of milimoles  of acid equal  to no of milimoels  of  base  Formula  used…

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 chemist prepares a solution of sodium hyposulfate Na2S2O3 by measuring out 279.μmol of sodium…

A: Concentration (M) = number of moles / volume of the solution (in L)                               =…

Q: If you dissolve 24.4 g of NaCl in 251 g of water and generate a solution that has a density of 1.10…

A: Molarity of a solution is given by,

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 adds 195.0mL of a 1.5M barium acetate (Ba(C2H3O2)2) solution to a reaction flask.…

A: Molar mass of barium acetate = 255.43 g/mol

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 barium acetate (Ba(C,H;O2),) by measuring out 54. g of barium…

A:

Q: A student in the laboratory needs a 0.125 M sulfuric acid solution, H SO, What volume in mL. of a…

A: Given M1 ( Molarity of stock ) = 18M V1 (Volume of stock) = ? M2 (Molarity of required solution) =…

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: A chemist must prepare 725.mL of 793.μM aqueous magnesium fluoride (MgF2) working solution. He'll do…

A: If M1 and V1 are molarity and volume of a solution before dilution and M2 and V2 are Molarity and…

Q: A chemistry student needs 5.00 g of acetic acid for an experiment. She has available 250. g of a…

A: Given,  250 g of a 15.8% w/w solution of acetic acid in ethanol. And 5.00 g of acetic acid is needed…

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 450.mL of 370.mM aqueous potassium permanganate KMnO4 working solution.…

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

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 certain organic compound O has a solubility in hexane of 0.780 –- at 10. °C. Calculate the…

A: In this question, we will calculate the greatest mass of organic compound O dissolved in hexane. You…

Q: A chemist prepares a solution of silver perchlorate (AgClo,) by weighing out 2.40 kg of silver…

A: Concentration in g/dL = Mass of solute in g/Volume of solution on dL

Q: A chemist prepares a solution of mercury(I) chloride (Hg,Cl,) by measuring out 0.000221 µumol of…

A: Molarity represents the concentration of solution, which is calculated as the total number of moles…

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 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 iron(III) bromide (FeBr,) by weighing out 152.1 g of iron(III)…

A: Given, mass of iron(iii) bromide (FeBr3) = 152.1 g            volume of water added (solution) =…

Q: A chemist prepares a solution of silver(I) perchlorate (AgCIO,) by measuring out 4.4 x 10 umol of…

A: Number of mol of silver (I) perchlorate (AgClO4 ) = 4.4 × 102 u mol  ...Or  because 1u (micro) =…

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.