A chemist adds 125.0 mL of a 0.183M potassium dichromate (K,Cr,O,) solution to a reaction flask. Calculate the mass in grams of potassium dichromate the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

Q: You have 615 ml of 4.69 M HCl.  Using a volumetric pipet, you take 288 ml of that solution and…

A: Interpretation: The final concentration of HCl after a series of dilution process has to be…

Q: A chemist adds 650.0 mL of a 5.99 g/dL potassium dichromate (K,Cr,O,) solution to a flask. Calculate…

A: Step 1. Calculate Molarity of potassium dichromate (K2​Cr2​O7​) solution:   Strength of potassium…

Q: A chemist prepares a solution of aluminum sulfite (Al, (SO3). ) by measuring out 81.0 µmol of…

A: Mol/L or molarity is the concentration unit of solution which is defined as no of mole of solute…

Q: A chemistry student weighs out 0.0737 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

A: In a titration, the equivalence point is that point where, the total amount of titrant is consumed…

Q: A chemist prepares a solution of sodium chloride NaCl  by measuring out  4.37g  of sodium chloride…

A: Concentration in mol/L is known as molarity of the solution.It can be calculated bydividing the…

Q: A chemistry student weighs out 0.155 g of lactic acid (HC,H,O3) into a 250. mL volumetric flask and…

A: Lactic Acid is:- HC3H5O3 The molar mass of lactic acid is :- 90.08g/mol Weight of Lactic acid used =…

Q: Calculate the concentration in /μmol/L of the chemist's magnesium fluoride solution.

A: Given :- number of moles of MgF2 = 0.00387μmol  Volume of solution = 100 mL  To be calculated :-…

Q: A chemist must prepare 0.500 L of 2.00 M aqueous calcium bromide (CaBr,) working solution. He'll do…

A: To solve this question, use the formula which contains two molarities and volumes in it and solve…

Q: A chemist prepares a solution of potassium dichromate (K,Cr,0,) by measuring out 16. umol of…

A: Molarity or concentration of solution may be defined as the number of moles of given solute…

Q: What is the mass % of ethylene glycol in a 2.61 M solution of ethylene glycol (MM = 62.07 g/mol) in…

A:

Q: A chemistry student weighs out 0.162 g of lactic acid (HC,H,o,) into a 250. mL volumetric flask and…

A: Answer :- 20.0 (mL) The volume of NaOH solution needed to reach equivalence point = 20.0 mL…

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 magnesium fluoride (MGF2) by measuring out 0.026 umol of magnesium…

A: 1micro mole = 10^-6 mole 1L = 1000ml

Q: A chemistry student weighs out 0.0529 g of lactic acid (HC,H,o,) into a 250. mL volumetric flask and…

A: Given information: Mass of lactic acid = 0.0529 g Molarity of NaOH = 0.0900 M

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 chemist prepares a solution of sodium thiosulfate (Na₂S₂O3) by measuring out 18. g of sodium…

A:

Q: How many moles of ammonia are in 500. mL of a 2.25 M aqueous ammonia solution? Find the numerical…

A: we are  required to find the number of moles of ammonia from molarity and volume

Q: A chemist prepares a solution of sodium thiosulfate (Na,S,0,) by measuring out 271. g of sodium…

A:

Q: What is the mass % of ethylene glycol in a 1.85 M solution of ethylene glycol (MM = 62.07 g/mol) in…

A: Given : Molarity of ethylene glycol = 1.85 M And density of solution = 1.07 g/mL

Q: If 120 mL of a 1.2 M glucose solution is diluted to 550.0 mL, what is the molarity of the diluted…

A: Number of moles of solute present in 1 liter of solution is known as molarity of the solution.…

Q: A chemist prepares a solution of potassium iodide KI by measuring out  72.g of potassium iodide…

A: Molarity:-                  It is the number of moles of the solute dissolved per litre…

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 sulfite (Al₂(SO3)3) by measuring out 44. µmo! of aluminum…

A:

Q: A chemist prepares a solution of silver(I) nitrate AgNO3 by measuring out 210.μmol of silver(I)…

A:

Q: An analytical chemist weighs out 0.131 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given: Weight of monoprotic acid is 0.131 g. Volume of acid is 250 mL. Molarity of NaOH is 0.1800 M.…

Q: An analytical chemist weighs out 0.045 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given that: Mass of diprotic acid  = 0.045 g Volume of diprotic acid  = 250 mL Molarity of NaOH =…

Q: An analytical chemist weighs out 0.278 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given-> Weight of diprotic acid = 0.278 gm Volume of flask= 250 ml = 0.250 L (1 L = 1000 ml)…

Q: A chemistry student weighs out 0.0763g of lactic acid HC3H5O3 into a 250.mL…

A: The formula of Molarity is as follows, Molarity=Number of MolesVolume (mL)×1000  The equation for…

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 chemist prepares a solution of calcium sulfate (CaSO)4 by measuring out 0.258μmol of calcium…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: A chemist must dilute 42.4 mL of 483. mM aqueous potassium dichromate (K,Cr,O,) solution until the…

A: Given : Concentration of K2Cr2O7 to be prepared = 380 mM = 0.380 M                  (since 1 M =1000…

Q: A chemist prepares a solution of magnesium chloride MgCl2 by measuring out 2.3g of MgCl2 into a…

A: The solubility of MgCl2 in the water at normal conditions is very high, so 2.3 g of MgCl2 is…

Q: What mass in grams (g) of C12H22O11 (sucrose) (MM=342.30 g/mol ) is needed to prepare 227.5 mL of a…

A:

Q: 168 mL of a 1.6 M solution of acetic acid, CH3CO2H, (molar mass 60.05) is diluted to 224 mL.…

A: Given: Initial concentration, M1 = 1.6 M The initial volume, V1 =168 mL Final concentration, M2 = ?…

Q: You are making a rubbing alcohol (=isopropyl alcohol) solution to disinfect surfaces. You start with…

A: Given: Initial concentration of alcohol = 4.440 M Initial volume of solution = 316.7 mL And final…

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: In her chemistry class, Rachel is preparing a special solution for an experiment that she has to…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: An analytical chemist weighs out 0.066 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: An analytical chemist weighs out 0.185 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given:- analytical chemist weighs = 0.185 g Molarity = 0.2000M V = 9.5 mL Calculate molar mass of…

Q: An analytical chemist weighs out 0.067 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given,  Mass of diprotic acid     = 0.067 g  Volume of diprotic acid = 250 mL  =  0.25 L Molarity of…

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 9.33 % solution of sulfuric acid has a density of 1.07 g/mL.  What is the molarity (M) of this…

A: Given: The density of 9.33 % solution of sulfuric acid is 1.07 g/mL The mass percent is 9.33%

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 chemist prepares a solution of potassium iodide (KI) by measuring out 3.0 x 10 umol of potassium…

A:

Q: A student needs to prepare 100. mL of 0.618 M Cu(NO3)2 solution.  What mass, in grams, of copper(II)…

A: The mass of required copper(II)nitrate is determined by using given volume and molarity.The molarity…

Q: A chemist prepares a solution of zinc nitrate (Zn(NO, by measuring out 5.2 x 10 umol of zinc nitrate…

A: Number of moles = 5.2 × 102 u mol Volume of solution = 500 ml  ....Or  because 1L = 1000 ml…

Q: An analytical chemist weighs out 0.061 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given: Mass of acid = 0.061 g Molarity of NaOH = 0.1900 M Volume of NaOH = 3.3 mL = 0.0033 L

Q: An analytical chemist weighs out 0.206 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: A chemist prepares a solution of silver perchlorate (AgClO,) by measuring out 1.07 kg of silver…

A: Given, mass of AgClO4 = 1.07 kg = 1.07 × 1000 g = 1070 g Volume of the solution = 250 mL = 0.250 L…

Q: A chemist adds 165.0 mL of a 0.0395 mmol/L copper(II) sulfate (CuSO, solution to a reaction flask.…

A: Molar mass of Cu(II)SO4 is 159.61 g/mol