An aqueous solution at 25 °C has a H,0' concentration of 8. × 10 M. Calculate the OH concentration. Be sure your answer has the correct number of significant digits.

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: Morphine, C17H19NO3, is a weak monoprotic base that is often used to control severe post-operative…

A:

Q: How would you prepare 100 mL of a 0.05 M aqueous solution of iron from a 0.7 M solution? It…

A: Molarity of stock solution = 0.7 M Volume of stock solution = unknown

Q: A student wants to make a 0.600 M aqueous solution of barium sulfate, BaSO4, and has a bottle…

A: final volume = 85.7 mL

Q: In the US, alcohol proof is equal to twice the percent of alcohol (ethanol) by volume, so for…

A: Percentage volume by volume: is one of the ways to express concentration of solution. Formula is:…

Q: ind the molarity of a 40.0% by mass aqueous solution of sulfuric acid, H2SO4, for which the density…

A: The molarity is the concentration term which is defined as the number of moles of solute present in…

Q: 2. A brine solution is 13.0 % (w/w). How much salt is there in a sample which weighs 150 grams?…

A: The given data : The %(w/w) of the solution = 13.0 % The mass of the sample = 150 g. To determine =…

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: [OH1 Acid/Base 3.51 x 10 4.74 x 103 3.98 x 10 10

A: 1.     [H+]                 [OH- ]                  acid/base 3.51×10-8        2.85×10-5…

Q: Calculate the molarity of a solution of 42.64 g of aluminum nitrate, Al(NO3)3, in 1260 mL of…

A: Molarity =no. of moles of soluteVolume of the solution in litre  no. of moles =given massMolar mass

Q: What will be the final volume of a solution prepared by diluting 28.6 mL of 8.05 M sodium hydroxide…

A: Detail mathematical calculation is shown below

Q: What volume of 1N NaOH in mL should be added to a liter of 0.66 N KOH in order for the resulting…

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Q: Mass of Erlenmeyer flask: 25.52 g Mass of Erlenmeyer Flask + Calcium Hydroxide Solution (lime…

A: Mass of Ca(OH) 2 = 2.92 g Density of Ca(OH) 2= 1 g/ml As we know        Density = mass/ volume We…

Q: A Chemistry student has to prepare 155 mL of 0.100 M KI in water. She finds a bottle that states it…

A: The required solution is 155 millilitres of 0.100 M KI in water.

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 sample of mercury(I) nitride weighs 3.33 dg.  How many nitrogen atoms are in this sample?The…

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Q: 1.A solution of zinc nitrate is added to a solution of magnesium sulfate. 2.You make 1.000 LL of an…

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Q: 1) If 56.2 mL of BaCl2 solution is needed to precipitate all the sulfate ion in a 746 mg sample of…

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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: Calculate the number of grams that would be needed to make 2.50 x 102 mL of 0.230 M KOH. Enter your…

A: Given: 2.50 x 102 mL 0.230 M KOH

Q: A chemist prepares a solution of silver perchlorate AgClO4 by measuring out 0.58kg of silver…

A: Mass of silver perchlorate=0.58 kg=580 g  Molar mass of silver perchlorate = 207.319 g/mol Moles =…

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 student wants to make a 1.600 M aqueous solution of barium sulfate, BaSO4, and has a bottle…

A: To calculate the final volume of the solution for 1.6 M solution of BaSO4 containing 12.00 g of…

Q: If I start with 100. mL of a 0.95 M Fe(NO3)3 solution and dilute it until the final volume is 150…

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Q: What is the molarity of an H2S04 solution if it takes a volume of 70.0 ml of 0.50 M NaOH to fully…

A:

Q: If 124 mL of a 1.2 M glucose solution is diluted to 550.0 mL , what is the molarity of the diluted…

A: The molarity of the given chemical solution is related to the number of moles of the solute and the…

Q: "How many grams of copper (II) fluoride are needed to make 6.7 L of a 1.2 M solution? Make sure to…

A: Molarity of the solution = 1.2 M Volume of the solution = 6.7 L

Q: Why is it more accurate to say that the concentration of a solution of acetic acid is 0.01 F rather…

A: Acetic acid in solution exists as mixture of undissociated acetic acid and dissociated acetic acid…

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: .600 M NaCi aqueous SC www 0.997 g / cm3

A: When non volatile solutes are added to a pure solvent ,the solution formed have lower freezing point…

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: 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 0.091 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: During a Titration, at equivalence point , the substance reacts completely with the added substance.…

Q: If 42.7 mL of 0.202 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of…

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Q: Suppose 1.24 g of sodium chloride is dissolved in 200. mL of a 28.0 m M aqueous solution of silver…

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Q: NeC 2. Another common unit of concentration is % mass/volume (m/v). Calculate the % mass/volume for…

A: Since you have posted multiple questions, we will answer only first one for you. If you want any…

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

A:

Q: Answer the following question: How many moles of ammonia are in 500. mL of a 2.25 M aqueous ammonia…

A:

Q: Five standard solutions of HBr are prepared by serial dilution in which, at each stage, 10.00 mL are…

A: Five standard solutions of HBr are prepared by serial dilution in which, at each stage, 10.00 mL are…

Q: 8. The density of methanolc acid, HCOOH Is 1.22 g/mL If 33.5 mL of methanoic acid is dissolved in…

A:

Q: A chemist adds 315.0mL of a 0.00335μM copper(II) fluoride CuF2 solution to a reaction flask.…

A: Moles can be found out by multiplying volume with molarity.

Q: 3. If a researcher starts with 3.00 mL of a 4.50 mg/mL protein solution and adds 10.0 mL of water,…

A:

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: On their third titration trial, the CHM 111 student used 18.80 mL of 0.205 M NaOH(aq) to neutralize…

A: Balanced Reaction HCl (aq) + NaOH (aq) ---> H2 O (l) + NaCl(aq)  Volume of NaOH = 18.80 mL…

Q: If acetic acid is the only acid that vinegar contains (K. = 1.8 x 10 '), calculate the initial…

A: Let  initial concentration  of acetic  acid is A.

Q: A 7.91 mass % aqueous solution of ethylene glycol (HOCH2CH2OH) has a density of 1.36 g/mL. Calculate…

A: Density is defined as mass per unit volume. Mathematically, it is expressed by equation (1).Molarity…

Q: A chemist prepares a solution of aluminum chloride (AlCl3) by measuring out 35.2 g of aluminum…

A: Given: Weight of the aluminum chloride is 35.2 g. Volume is 100 mL.

Q: A chemist must dilute 29.5 mL of 11.7 µM aqueous zinc oxalate (ZnC,04) solution until the…

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

Q: If you are going to dilute 125 mL of 1.50 M AgNO3 solution so that the final volume is 215 mL, what…

A: Given;

Q: A chemist adds 490.0mL of a 0.339M silver perchlorate AgClO4 solution to a reaction flask. Calculate…

A: Given that,490.0mL of 0.339M silver per chlorate solution.