A student pipetted 10 mL of a sample solution into a 250 mL volumetric flask and diluted it to the mark with distilled water. The student then, pipetted 10 mL of this new solution into a 50.00 mL volumetric flask and diluted it to the mark with water. What is the dilution factor of the final solution? 100X 25X 125X 5X 50X

Q: 1.00 mL is taken from a stock solution of concentration 8.47 g/L and added to a 10.0 mL volumetric…

A: Given, Stock solution: Concentration of the stock solution (C1) = 8.47 g/L Volume of the stock…

Q: A chemistry student weighs out 0.139 g of lactic acid (HC,H,O,) into a 250. mL volumetric flask and…

A: Mass of lactic acid = 0.139 g Volume of solution = 250 mL or 0.250 L Molar mass of lactic acid =…

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

A: Given: Mass of hypobromous acid = 0.101 g Volume of volmetric flask   = 250 mL Molarity of NaOH…

Q: A chemistry student weighs out 0.146 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A:

Q: A chemist must prepare  550.mL  of  60.0mM aqueous potassium dichromate  K2Cr2O7 working…

A: Dilution is the process of decreasing the concentration of a solute by mixing more solvent. Dilution…

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: Given : Mass of water in swimming pool = 8.45 X 104 gallons  Mass percent of chlorine = 6.00 %  And…

Q: 0.9989 g Volume used (ml) ? Mass of NagHaY 2H20 Initial volume (ml) final volume (ml) 25.25 Thration…

A: Given: Initial volumes (mL): 0.75, 1.25, 1.75, 2.55 and 1.90. Final volumes (mL): 25.25, 26.75,…

Q: Does it make a difference if you use a volumetric flask vs a beaker vs a graduated cylinder to make…

A: There is a difference in the utility of the volumetric flask, beaker, and graduated…

Q: A chemistry student weighs out 0.105 g of sulfurous acid (H,SO,), a diprotic acid, into a 250. mL…

A:

Q: A student weighed a wet 10-mL graduated cylinder. The cylinder contained at least 0.5 mL of water…

A: Given that : A student weighed a wet 10-mL graduated cylinder. The cylinder contained at least 0.5…

Q: A doctor has ordered that a patient be given 3.00 g of glucose, which is available in a…

A: A numerical problem based on unit conversion, which is to be accomplished.

Q: A chemistry student weighs out 0.184 g of phosphoric acid (H, PO a triprotic acid, into a 250. ml.…

A: Given data,Mass of H3PO4=0.184gVolume of water=250mL=0.250LMolarity of NaOH=0.1400M

Q: Nurses are often required to calculate dosages. That is, they must check the order that a doctor has…

A: Answer is given below

Q: The stockroom has provided you with a 1.60 M stock solution of NaCl. What volume of this stock…

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

Q: A chemistry student weighs out 0.141 g of acrylic acid (HCH,CHCO, into a 250. ml volumetric flask…

A:

Q: A chemistry student weighs out 0.199 g of hypobromous acid (HBro) into a 250, mL volumetric flask…

A: Given: mass of HBrO = 0.199 g Volume = 250 mL 0.1000 M NaOH

Q: A chemist must prepare 800.mL of 270.mM aqueous potassium permanganate KMnO4 working solution. He'll…

A: Volume of solution to be prepared = 800 mL Concentration of solution = 270 mM = 0.270M Concentration…

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 100 mg vitamin C tablet weighed 1.681 g. A student crushed the tablet and transferred 0.150 g of…

A: Given the weight of 100 mg Vitamic C (ascorbic acid) tablet = 1.681 g  0.150 g of the above tablet…

Q: 1. A solution is prepared by taking a clean and dry 50.0 ml volumetric flask. You are tasked to…

A: Mass of watch glass = 23.5 g Mass of watch glass + salt = 30 g So, Mass of salt = (30-23.5) g = 6.5…

Q: Nurses are often required to calculate dosages. That is, they must check the order that a doctor has…

A:

Q: A chemistry student weighs out 0.183 g of sulfurous acid (H,SO3), a diprotic acid, into a 250. mL…

A: According to law of gram equivalence, for an acid base reaction at equivalence point, number of gram…

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: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The values are given as follows:

Q: Julia needs 75 milliliters (mL) of 4.0 x 104 M sulfuric acid solution. She has access to the…

A: The Answer to the following question is given as -

Q: A chemistry student weighs out 72. g of an unknown solid compound X and adds it to 550. mL of…

A: An student weighs out 72. g of an unknown solid compound X and adds it to 550. mL of distilled water…

Q: A 0.9% (weight in grams/volume in mL) solution of sodium phosphate is made by adding _______ grams…

A: 0.9% (weight in grams/volume in mL) solution of sodium phosphate is made by adding 18 grams of…

Q: The registered pharmacy technician receives a prescription for 100 of 17% w/ v salicylic acid…

A: Given: prescription required = 17 % w/v salicylic acid ointment. Amount of ointment required = 100…

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: Price the Prescription using the Professional Fee method. Rx Potassium chloride 40 mEq NaCl 30 mEq…

A: The professional fee is ₱35.00. The mass of KCl and NaCl in each mEq is 0.075 g and 0.058 g,…

Q: A chemistry student weighs out 0.106 g of sulfurous acid (H, So,), a diprotic acid, into a 250. mL…

A:

Q: How many liters of 0.250 M NaOH solution can be prepared from 10.0 g of NaOH?

A:

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The mass of water in the pool is calculated as,

Q: A student pipetted 10 mL of a sample solution into a 250 mL volumetric flask and diluted it to the…

A: At first 10 mL of original solution is taken in 250 mL flask and the rest 240 mL of water is added…

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 0.0690 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: Given: Mass of HBrO = 0.0690 g. And concentration of NaOH = 0.1700 M

Q: A chemistry student weighs out 0.379 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A: Given data is as follows: The mass of citric acid = 0.379 g The volume of citric acid V1= 250 mL The…

Q: A chemistry student weighs out 0.0812 g of sulfurous acid (H₂SO3), a diprotic acid, into a 250. mL…

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: A chemist must dilute 14.9mL of 1.88M aqueous sodium carbonate (Na2CO3) solution until the…

A: Given : Initial concentration of Na2CO3 = 1.88 M Initial volume of Na2CO3 solution = 14.9 mL And…

Q: Calculate the Normality of Hcl of a solution that contains 45 g in 325 ml of water, knowing that the…

A:

Q: compound? element? solution? heterogeneous? pure substances? a. soda pop b. used motor oil freshly…

A: Compound is defined as two or more elements mixed together then compound formula Mixture is defined…

Q: If a total of 125 mL of a 10% solution is diluted to 500 mL in a 500-mL volumetric flask, what is…

A: 1.) As the initial 10% solution is diluted , so we would use dilution law to calculate concentration…

Q: A chemistry student weighs out 0.130 g of phosphoric acid (H, PO,), a triprotic acid, into a 250. mL…

A:

Q: A chemist prepares a solution of iron(III) bromide (FeBr, by weighing out 45.48 g of iron(III)…

A: In this question, we will calculate the Concentration of this given Compound in g/dL unit and final…

Q: A chemistry student weighs out 0.129 g of lactic acid (HC,H,0,) into a 250. mL volumetric flask and…

A: Since Lactic acid is a weak monoprotic acid  Hence it will react with NaOH as  NaOH + HC3H5O3…

Q: Give the mass of the solute and mass of the solvent for 1.30 LL of a solution that is 17.0 %% of…

A: Given, % by mass of Pb(NO3)2 = 17.0 % Volume of solution = 1.30 L = 1300 mL     (1 L = 1000 mL)…

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) =…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".