Given .750L of a 12M HCI solution, what volume of 5.00M HCI could you make?

Q: The following question tests your lab skills as well as basic knowledge understanding: In Lab1- KHP…

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Q: prepare 250ml of 0.10 m NaOH from solid NaOH and water

A: Molarity: The moles of a solute per litre of a solution is called as molarity (M).

Q: Benzoic Acid Champi Sample Weight of sample 0.4997 g 0.4107 g Pressure in the container 3000 kPa…

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Q: 22. If 75 mls of 0.02 M HCI is added to 425 mls of 0.5 M glycine buffer at pH 10.4, what is the…

A: Here given that, there is 425 mL of 0.5M glycine buffer at pH 10.4425 mL is equal to 0.425 L…

Q: Prepare 200 ml of a 0.125 M stock of NaCl from a 1 M concentrated stock solution of NaCl.

A: An artificial nutrient medium contains nutritional components like sugars, salts, amino acids, etc.…

Q: Consider the titration of a 23.0-mL sample of 0.110 M HC2H3O3 (Ka=1.8\times 10−5) with 0.120 M…

A: volume of base required to reach equivalence point = (0.110 M x 23 ml)/0.120 M = 21.1ml of NaOH pH…

Q: In a neutral solution, the [H] is : O 1.0x10-14M zero 1.0×107M 1.0x10-7M

A: The acidity of any solution is determined by the molarity of the Hydrogen ions. So, the pH of any…

Q: You wish to make a 0.308 M perchloric acid solution from a stock solution of 12.0 M perchloric acid.…

A: Introduction A dilute solution means a solution where relatively small amount of solute is dissolved…

Q: If a pharmacist needs to prepare a bacterial suspension with a concentration of 2.4x10^2 cfu using 1…

A: A colony-forming unit is the number of viable or alive cells in cell suspension that have the…

Q: Prepare the following solutions 1. 250.0 mL 0.0100 M working EDTA solution from 0.1000 M EDTA  2.…

A: a. Most of the reagents that are required are available in solutions that need to be purchased or…

Q: What mass of potassium nitrate KNO3 should be added to 255 g of water to prepare a 15% (m/m)…

A: Potassium nitrate is a chemical compound with the chemical formula KNO3. It is an ionic salt of…

Q: 1L= how many quarts

A: Quarts is the unit of liquid which is equal to quarter of gallon.

Q: Determine the pH for the following solutions.  {H3O+}=2.4x10^-2 M

A: p in pH denotes negative of the logarithm(-log). So pH is negative logarithm of molarity of H pH…

Q: suspense contains 317 mg to a drug in each teaspoon, how many grams of the drug are in a cup of…

A: To calculate the amount of drug present in a cup of suspension, we need to know about the conversion…

Q: You need to prepare an acetate buffer of pH 5.43 from a 0.621 M acetic acid solution and a 2.95 M…

A: At equilibrium  0.40875 - x moles of acid  x moles of its conjugate base. Initial moles of CH3COOH…

Q: Demerol 25 mg IM is ordered stat. On hand is Demerol 100 mg per 2 ml. How many ml would you give?

A: Drug administration should be in right dose. So we have to use drug dose calculation formula for…

Q: Liquid hexane of water is produced from the reaction of 28.44 g of hexane and 165.5 g of oxygen gas,…

A: The balanced chemical equation for the reaction is: 2 C6H14(l) + 19 O2(g) → 12 CO2(g) + 14 H2O(g)…

Q: 50 mL of 5mM NaCl solution from 1 M NaCl solution

A: Dilution is the process by which we decrease the concentration of a solution. This process is vital…

Q: How many grams of NaOH would you need to make 3,982 mL of a 3 M NAOH solution (m.w. = 40.00 g/mol)?…

A: By the concept of molarity, we can determine the concentration of a solution. It is the total number…

Q: A chemist is performing a precipitation titration on a 1.00 L sample containing an unknown…

A: Titration is the process, in which the exact concentration of the unknown solution can be used to…

Q: alculate the concentration in mmol/L of the chemist's aluminum sulfite solution. Be sure your answer…

A: Molarity It is defined as the number of moles of a substance dissolved in 1 litre of a solution.…

Q: How many grams of NaOH would you need to make 7,252 mL of a 230 mM NaOH solution (m.w. = 40.00…

A: Answer- Here molarity of the solution is provided and requires the amount of weight of NaoH.

Q: You need to make a protein buffer of: 100 mM NaCl ⚫ 25 mM Tris 8 • • 5% w/v glycerol 2 mM DTT Your…

A: In order to calculate how much of each component we should use to get the required buffer, we need…

Q: Calculate the number of grams needed to prepare 100 mL of a 0.20 M solution of cobalt sulfate…

A: 1 mole of a substance is equal to that substance's Molecular weight The molecular weight is cobalt…

Q: You want 235mL of a solution that consists of 10% BSA, 2.37mM KCl and 120µM EDTA.  You have stock…

A: BSA is a globular proteins which is a well studied proteins and used as standard protein molecule in…

Q: Calculate for the initial pH, final pH, and buffer capacity if 0.1 mole of H+ is added to 1L of…

A: The reaction that would take place when we add H+ (here H+ is the acid added) into the given buffer…

Q: To prepare 500 mL of a 1X TAE buffer solution, we need to mix solution (so 25 times more…

A: TAE is a standard buffer for the preparation and operation of DNA agarose gels. TBE provides…

Q: Calculate acetic acid when it requires 44.82mL of a 0.145M NaOH solution to titrate 34.95 mL of our…

A: M1VI=M2V2

Q: I'm still getting off somehow. Should micrometers ^2 = meters^(-12)? I'm not sure how to convert…

A: Oxygen is a chemical element with atomic number 8. Oxygen is colorless gas at normal temperature and…

Q: What is the equivalent amount of NaCl for 0.9g of pilocarpine HCI (E=0.24) What mass (in milligrams)…

A: Normal Saline: Normal saline is a solution that contains 0.9% (w/v) sodium chloride (NaCl) in…

Q: B. You will need approximately 1 ml of the 100 µg/ml bromophenol blue (which is your most…

A: The stock concentration is 1mg/ml.Working solution concentration is 100 ug/ml. As both are two…

Q: To make up a solution of phosphate buffered saline (PBS), you need 10 mM Na2HPO4 (anhydrous) (FW:…

A: Convert the constituents in grams by multiplying with the respective molarity to convert grams per…

Q: How do you prepare 500 mL pH 6 Citric acid/Phosphate buffer in the laboratory. Please explain…

A: A buffer solution is a solution that only changes slightly when an acid or a base is added to it.

Q: 10 mL of 0.5 M CuSO₄ * 5H₂O solution from 10 M CuSO₄ * 5H₂O solution

A: CuSO₄ * 5H₂O solution is copper sulphate pentahydrate solution. The concentration of stock solution…

Q: 67. Purified water contains not more than 10 ppm of total solids. Express this concen- tration as a…

A: PPM is an abbreviation for "parts per million" and it also can be expressed as milligrams per liter…

Q: Write the Henderson-Hasselbalch equation for a propanoic acid solution (CH,CH,CO,H, pK, = 4.874).…

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Q: 1. Circle the volumes of the titrated NaOH(aq) which you want to use for your calculations. How and…

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Q: Concentrations and volumes are NOT the same thing. Concentrations are in units of mass/volume (i.e.,…

A: The solution is a mixture that forms when a solute is dissolved in a solvent. The solvent is a…

Q: PK 12.5 HO. ОН PK,43 Compound X О

A: The compound X has two distinct stages, corrresponding to deprotonation of two different groups. At…

Q: A chemistry student weighs out .119g of hypobromous acid (HBrP) into a 250 mL volumetric flask and…

A: Given:Mass of hypobromous acid (HBrO) = 0.119 gVolume of acid solution = 250 mL  or  0.250 LMolarity…

Q: How many moles of Nal would be found in 250mL of a 4.5 M solution? Write your answer with three…

A: Molarity (M) is calculated as the number of moles of solute per liter of solution (moles/Liter).

Q: What we know : Molar mass of Alliin= 177.25g/mol 1 clove of garlic = 18oz assume alliin takes up…

A: Given Values: Molecular weight of alliin = 177.25 g/mol Weight of 1 clove of garlic = 18 oz weight…

Q: The molar stability of mercury (II) sulfide is below. What is the Ksp ?

A: Mercury II sulfide or Mercury sulfide (HgS) . It is almost insoluble in water. But, it can be…

Q: given a stock solution of 10% dextrose, how would you make 5 mL of a 0.9% dextrose solution? find mL…

A: Given Values: The concentration of the stock solution of dextrose = 10% Concentration of the final…