A chemist prepares a solution of calcium bromide (CaBr2) by measuring out 30.2 µmol of calcium bromide into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's calcium bromide solution. Round your answer to 3 significant digits.

Q: A chemistry student weighs out 0.0345 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A: Molarity is defined as total number of solute present in 1000 ml of solution .   For neutralisation…

Q: A chemistry student weighs out 0.0553 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A: Given : Mass of HCH2CHCO2 = 0.0553 g  And concentration of NaOH solution = 0.0600 M The…

Q: A chemistry student weighs out 0.0457 g of formic acid (HCHO,) into a 250. mL volumetric flask and…

A: Given- Weight of formic acid =0.0457g Volume volumetric flask=250mL Concentration of NaOH =0.1100 M…

Q: A chemist prepares a solution of copper(II) sulfate (CuSO4) by measuring out 12. g of copper(II)…

A:

Q: A chemistry student weighs out 0.101 g of hypochlorous acid (HCIO) into a 250. mL volumetric flask…

A: A numerical problem based on volumetric analysis, which is to be accomplished.

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: 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 chemistry student weighs out 0.0955 g of ascorbic acid (H,C,H,O6), a diprotic acid, into a 250. mL…

A: Molar mass of ascorbic acid = 176.12 g/mol mass o f ascorbic acid = 0.0955 g Number of moles of…

Q: A chemistry student weighs out 0.113 g of ascorbic acid (H2C6H,06), a diprotic acid, into a 250. mL…

A: The mass of ascorbic acid is given as 0.113 g and the volume is 250 mL To calculate the volume of…

Q: A chemist prepares a solution of calcium bromide (CaBr2) by measuring out 3.4 x 102 μmol of calcium…

A: Since concentration in mmol/L we have to find  And concentration = moles of solute / volume of…

Q: A chemistry student weighs out 0.173 g of ascorbic acid (H₂CH₂O), a diprotic acid, into a 250. mL…

A:

Q: A chemistry student weighs out 0.270 g of citric acid (H;C,H;0;), a triprotic acid, into a 250. mL…

A:

Q: A chemist prepares a solution of zinc nitrate by measuring out 78. umol of zinc nitrate into a 100.…

A: Given: The number of micromoles of zinc nitrate present = 78 μmol The volume of the solution = 100…

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 chemistry student weighs out 0.0377 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A: The solution is given below -

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

A:

Q: If you made a solution of 1.5 ppm of Pb in 1.25 mL of nitric acid, from 0.25 mL of a stock solution.…

A: Given information: Concentration of solution (M1) = 1.5 ppm Volume of solution (V1) = 1.25 mL Volume…

Q: A chemistry student weighs out 0.166 g of ascorbic acid (H,C,H,O), a diprotic acid, into a 250. mL…

A: Ascorbic acid reacts with sodium hydroxide to form sodium ascorbate and water. The equation for the…

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 iron(II) bromide (FeBr,) by measuring out 152. umol of iron(II)…

A:

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 magnesium fluoride (MgF,) by measuring out 0.018 µmol of magnesium…

A: We know that, Concentration (Molarity) = number of moles/volume in litre And, Number of Moles =…

Q: A chemist prepares a solution of aluminum sulfite (Al, (Al₂(SO3)3) by measuring out 56.8 μmol of…

A: Given, moles of Aluminium sulfite (Al2(SO3)3) = 56.8 µmol = 56.8 × 10-6 mol Volume of the volumetric…

Q: A chemistry student weighs out 0.191 g of lactic acid (HC,H,0,) into a 250. mL volumetric flask and…

A: Given 0.191 gram lactic acid  in 250 ml flask and titrated  with 0.05 M NaoH. First  we calculate…

Q: A chemistry student weighs out 0.107 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A:

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: A chemistry student weighs out 0.146 g of lactic acid (HC,H,O,) into a 250. mL volumetric flask and…

A: Mass of lactic acid = 0.146 gMolar mass of lactic acid = 90 g/molMoles of lactic acid = Mass of…

Q: A chemistry student weighs out 0.135 g of acetic acid (HCH,CO,) into a 250. mL volumetric flask and…

A: Given: mass of acetic acid = 0.135 g Volume of acetic acid solution = 250.0 mL Concentration of NaOH…

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: A chemist prepares a solution of potassium dichromate (K,Cr,0,) by measuring out 8.2 g of potassium…

A:

Q: A chemist prepares a solution of sodium thiosulfate (Na,S,0,) by measuring out 111. g of sodium…

A: Answer :- 3.51 mol/L  The concentration of sodium thiosulfate solution = 3.51 mol/L…

Q: A chemist prepares a solution of barium acetate (Ba(C,H;O2),) by measuring out 54. g of barium…

A:

Q: A chemist prepares a solution of magnesium fluoride (MgF₂) by measuring out 0.058 g of magnesium…

A:

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 dilute  16.6mL  of  2.03M  aqueous zinc nitrate  ZnNO32  solution until the…

A: Given data contains, Initial volume is 16.6 mL. Initial molarity is 2.03 M. Final volume is x. Final…

Q: A chemistry student weighs out 0.0775 g of phosphoric acid (H₂PO4), a triprotic acid, into a 250. mL…

A: Given -> Weight of H3PO4 = 0.0775 gm Volume of H3PO4= 250 ml = 0.250 L (1L = 1000ml) Molarity of…

Q: A chemist prepares a solution of barium acetate BaC2H3O22 by measuring out 83.g of barium acetate…

A: Given that, A chemist prepares a barium acetate [(CH3COO)2Ba] solution in a 250 mL volumetric flask…

Q: A chemistry student weighs out 0.379g of citric acid H3C6H5O7, a triprotic acid, into a 250.mL…

A: Given : mass of H3C6H5O7 = 0.379 g  And concentration of NaOH = 0.2000 M  Since H3C6H5O7 is a…

Q: A chemistry student weighs out 0.421 g of citric acid (H,C H,O,, a triprotic acid, into a 250. mL…

A: Given, mass of citric acid = 0.421 g            volume of citric acid solution = 250. mL = 0.250 L…

Q: A chemistry student weighs out 0.0923 g of hypobromous acid (HBRO) into a 250. mL volumetric flask…

A: Given mass of HBrO = 0.0923 g  Volume of HBrO in mL = 250.0 mL  Molarity of NaOH = 0.1400 M…

Q: mmol A chemist makes 460. mL of magnesium fluoride (MgF₂) working solution by adding distilled water…

A:

Q: A chemistry student weighs out 0.0932 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A: The quantitative analysis method for determination of the concentration of acid or the base by…

Q: A chemistry student weighs out 0.113 g of acetic acid (HCH₂CO₂) into a 250. mL volumetric flask and…

A: Given that -  Volume of Acetic acid solution , V1 = 250 mlt  Molarity of acetic acid M1 = ?  Mass of…

Q: A chemistry student weighs out 0.211 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A:

Q: A chemistry student weighs out 0.0792 g of formic acid (HCHO,) into a 250. mL volumetric flask and…

A: Answer :- 34.4 ml  The Volume of NaOH needed to reach equivalence point = 34.4 ml.…

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 chemistry student weighs out 0.103 g of chloroacetic acid (HCH, CICO,) into a 250. mL volumetric…

A:

Q: A chemist prepares a solution of mercury(I) chloride (Hg,Cl,) by measuring out 0.00116 pmol of…

A:

Q: A chemistry student weighs out 0.282 g of ascorbic acid (H,C¸H¸O), a diprotic acid, into a 250. mL…

A: Given : Mass of H2C6H6O6 = 0.282 g And concentration of NaOH = 0.2000 M The neutralisation reaction…

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.