To prepare 0.20 M NaOH (40.0 g/mol) you will need to dilute 34 g of NaOH to ____ mL. a.2.6 mL b.4.2 mL c.4200 mL d.170 mL e.590 mL

Q: The number of moles of HBr present in 625 mL of a 0.0555 M HBr solution is:

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Q: 25. What is the molarity of an Nal solution that contains 7.0 g of Nal in 21.0 mL of solution? a.…

A: The molarity (M) of a solution is defined as the number of moles of solute present per litre of the…

Q: Can you please help me with this problem?

A: Calculate the number of moles of HCl.

Q: A 1:20 dilution is done with a 0.2500 M Na,SO4 solution. How many mL of the 0.2500M are required to…

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Q: 20 grams of NaClare dissolved in 0.8 L of water. What volume of this solution would be needed to…

A: 20 grams of NaClare dissolved in 0.8 L of water. What volume of this solution would be needed to…

Q: A 1415 mL sample of drinking water was found to contain 82.0 mg of lead. Calculate the concentration…

A: Given Mass of lead       = 82 mg  Volume of water = 1415 mL        1000 mL     =  1 Liter       1415…

Q: What volume of 12M HCl is required to make 650 mL of a 0.5 M solution?

A: Given :- initial concentration = 12 M                Final concentration (M2) = 0.5 M…

Q: 2.Fifty grams of water containing a certain amount of sucrose boils at 100.77 0 C. What is the…

A: ΔTb = Kb. M Kb for water = 0.52K/mol   Mol. Mass of sucrose C12H22O11 = 342 Boiling point of water…

Q: Complete the table below and show the complete and correct solution. a. 105.9g/mol b. 100.9 g/mol…

A: Graham's law:

Q: 44) What volume of a 4.00 M KCl solution is required to prepare 100. mL of an 8.00 M KCI solution?…

A: We can use the below given relation to calculate the volume of solution required to prepare a…

Q: n aqueous ethanol solution 453.1 (mL) was diluted to 4.00 L, giving a concentration of 0.794 M.  The…

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Q: an experiment you need 2.6 liters of of 1.6 M NaOH.  In the stockroom you have 5.8 M NaOH.  How many…

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Q: Barium Hydroxide has a solubility of 4.68 g Ba(OH)2 in 100. g H2O at 25°C. Determine if each of the…

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Q: What    volume    of    10%    NaCl    must    be    added    to 10 mL    of    water    to    make…

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Q: [References) Use the References to access important values if needed for this question. In the…

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Q: Forty grams of NaOH are dissolved in water and diluted to 500 ml. The solution’s concentration is?

A: Given  mass of NaOH        = 40 gram Volume of solution = 40 mL          1 mL  = 10 -3 Liter…

Q: ...00 of water 2. A solution is prepared by dissolving 25 grams of NaCl in 300 grams of water. Find:…

A: The term "mass per cent" is used to convey a concentration or to describe a component in a mixture.…

Q: What is the volume of C needed to prepare 50.0 mL of Solution C? p of 0.785 g/cm³ 60.094 g/mol…

A: Density of C = 0.785 gmcm3 Molar mass of H2O = 18.016 gmmol Molar mass of C= 60.094 gmmol Volume of…

Q: How many millimoles of solute are contained in a) 2.00 L of 2.76 x 10-3 M KMnO4? b) 250.0 mL of…

A: Using the formula,

Q: g of magnesium nitrate is dissolved in 1.20 L of water. 25 mL of this solution is taken and diluted…

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Q: 3.75 dm3 of distilled water are added to 250.0 cm3 of 3.20 mol dm–3 sodium hydroxide solution. What…

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Q: The solubility of KCI in water is @ 344 g/L. What would be the best method for preparing a 100 mL…

A: A question based on solutions that is to be accomplished.

Q: Find grams of solution in a 22.5 %mass solution of X that has 17.0 g(solvent):

A: Given: Mass percent of X in solution = 22.5 % And mass of solvent = 17.0 g.

Q: D 2.3 x 10 mol/dm 3 25.0 cm of 0.100 mol/dm³ aqueous sodium hydroxide is neutralised by 24.6 cm° of…

A: 1 dm3 = 1000 cm3.   25.0 cm3 0.100 mol/dm3 NaOH solution contains (25/1000)×0.100 = 0.0025 mol NaOH.…

Q: 8) How would you prepare a 1 M solution of sodium hydroxide? A) add 40.0 grams of sodium hydroxide…

A: The objective of the question is to prepare 1M solution of sodium hydroxide.

Q: This image shows that the initial volume of a sodium phosphate solution was 357 mL, with a molarity…

A: ⁹

Q: A chemist samples a river's water to measure the amount of fertilizer runoff from the area farms. In…

A: Given , mass of Nitrate (solute) = 562 microgram  = 562 X 10-6 gram (As , 1 microgram = 10-6 gram)…

Q: Calculate the concentration of lead in milligrams per liter.

A: Given :- volume if water = 1285 mL  mass of lead = 95.0 mg   To calculate :-  concentration in mg/L…

Q: A) Please calculate the molarity of a 578.0mL solution that contains 7.899g of calcium chloride…

A: (A.)  Mass of CaCl2 = 7.899 g Molar mass of CaCl2 = 110.98 g/mol No.of moles of CaCl2  = 7.899…

Q: n impure sample contains 0.78 g of impurities and 4.95 g of benzoic acid.  The sample is dissolved…

A: Grams of the impurity that will crystallize out when the solution has cooled = 0.17 g

Q: 3) We prepared alum crystals in the lab by dissolving 24.0 g of alum in 100. g of water. If you only…

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Q: How many liters of a 5 M NaOH stock solution would you need to make 692 mL of a 622 mM NaOH…

A: When the given stock solution is diluted to form a new solution with a new concentration, it still…

Q: How many moles of KCl are contained in each solution?a. 0.556 L of a 2.3 M KCl solutionb. 1.8 L of a…

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Q: A solution containing 78 g of NaNO3 in 70. g H2O at 50 °C is cooled to 20 °C. Use the solubility…

A: As per the data given 88 gm of NaNO3 is soluble per 100 gm of H2O at 20°C while 110 gm of NaNO3 per…

Q: Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5…

A: Enthalpy of given solution can be determined using the equation given below:

Q: MISSED THIS? Read Section 14.5 (Pages 594-601); Watch WE 14.3. Part A Apotassium bromide solution is…

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Q: you are asked to make 1.00 L of a 0.500 M solution of potassium chloride starting with a stock…

A: Given is, N1= 3.00 M V1=?? N2= 0.500 M V2= 1.00L

Q: 1. An NaCl solution is prepared using 30 g of NaCl and 500 g of water. What is the concentration of…

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Q: 43) How many moles of CaCl2 are in 250 mL of a 3.0 M of CaCl2 solution? A) 750 moles B) 1.3 moles C)…

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Q: Consider a 2.6 M solution of KCl (molar mass= 74.55 g/mol). How many moles of KCl are in 18.1 mL of…

A: Consider the given information is as follows; Molar mass of KCl = 74.55 g/mol Concentration of KCl =…

Q: Percent by Mass= Mass of Solute x100 Percent by volume and Percent by Mass calculations Mass of…

A: Since you are posted with multiple questions. As per the rule, I am answering the first question…

Q: 11.2 mM (millimolar) solution was made using 0.198 L of a 294 mM solutioon what is the final volume…

A: Given; Initially; concentration of the solution (M1) = 294 mM Volume of the solution (V1) = 0.198 L…

Q: 150 mCi of D2O is injected in your patient. 10% of D2O is excreted. The concentration of D2O in a…

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Q: Convert the ug/ml above to moles/L (molar concentration)    You are asked to make a 1:10 dilution…

A: Stock solution — 3.5 ml To make 1:10 dilution Final volume = 10 ml

Q: Calculate the volume in mL of a solution that contains 1.82 moles of KCl if the concentration of…

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Q: Convert your answer to scientific notation (i.e. ## x 10x mg) = Convert a 3.5% NaCl solution to…

A: Given: Concentration of NaCl in %(m/v) = 3.5 %.

Q: Given a 100 mL solution of 0.050 M BaCl2●2H2O solution, which of the following statements is…

A: Answer: First of all we will calculate the number of moles of BaCl2.2H2O and then with help of this…

Q: What mass of Na2SO4 is needed to make 9.46 L of 2.893 M solution?

A: Number of moles = molarity × volume (in L)  Molar mass of Na2SO4 = (2×23 + 1×32 + 4×16 ) g/mol…

Q: In the laboratory, a student dilutes 17.6 mL of a 6.83 M hydroiodic acid solution to a total volume…

A: Given data,Initial molarity of HI (M1)=6.83MInitial volume of HI (V1)=17.6mLFinal volume of HI…