A 276 mL aqueous solution containing 0.400 g of an unknown polymer has an osmotic pressure of 26.9 torr at 30.0 °C. What is the molar mass of the polymer?

Q: if i want to dilute 500L of a 2 M PbNO3 solution to a 1.5 M PbNO3 solution what will be the volume ?

A: Given :-  Initial concentration = 2 M  Initial volume = 500 L  Final concentration = 1.5 M  To…

Q: 3. Circle all of the following molecules that would be considered highly water soluble O → Na o…

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Q: Calculate moles: 2.00x10-3M Fe3+ x 5.00mLX 71 ANSWER:

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Q: 7:25 Question 29 of 50 What is the mass (in g) of 0.935 mol of acetone, CH3COCH3? The molar mass of…

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Q: UESTION 3 alculate the molar mass of potassium chloride, KCI. 6.745 g/mole 54.55 g/mole 19.00 g/mole…

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Q: Question 1

A: Qualitative analysis is a branch of chemistry that deals with the identification of elements present…

Q: Determine the quantity of moles in 5.62 x 10²² molecules of H₂O₂

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: Ai See Periodic Table See A sample of crude oil contains 3.09 mMnaphthalene,…

A: Given, 3.09mM naphthalene 11.0mM methylnaphthalene 22.8mM dimethylnaphthalene 14.0mM…

Q: How many moles of NaOH are

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Q: Info provided: Formula mass of KHP is 204.22g/mol Mass of KHP(g) is 1.9970g Vol. of NaOH is 33.23…

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Q: moles of NH4CI (1 nointl

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Q: Ten milliters of ethanol (ρ=0.789 g/mL) is added to sufficient amount of water to produce 100.0 mL…

A: We have to calculate the concentration in mole fraction. Mole fraction of a substance in a mixture…

Q: x, x A 2 A- T Normal I No Spac... Heading 1 Heading 2 Title Font Paragraph Styles 5. Ca:(PO4)2…

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Q: Question 8 of 11 Determine the number of moles in 4.21 x 1023 molecules of CaCl2 STARTING AMOUNT ADD…

A: Number of moles can be calculated as = given mass/molar mass of the given compound

Q: Please help me with tyhis problem and the right sig fig because I got as the molar of the compound…

A: This are some rules of significant figure you should know-

Q: PROBLEM SOLVING. Show all pertinent computations Express final answer up to the fourth decimal…

A: Solution: We have law of conversion of mass which clearly indicates mass of the products equal to…

Q: I am trying to find the % salt( x value) using information from the picture with table one on it. If…

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Q: STARTING AMOUNT X How many moles of Na,SO, are in a 0.140 m aqueous solution that was prepared with…

A: Molality of solution is defined as number of moles of solute dissolved per kilogram of solvent.

Q: 6. How many moles of particles are present upon dissolving one mole of each of the compounds below?…

A: upon disolving ionic compounds dissociates into its ionic form where as non ionic do not diisociate…

Q: 32. How many moles of NaOH are in 23.56mL of 0.1010M NaOH?

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Q: 3. What volume of a .20 M solution of K₂SO4 solution contains 75 g of the solute?

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Q: How many grams of Tris base (MW 121.14 g/mol) are needed to prepare 300ml of a 1M stock? (please do…

A: Tris base also known as trizma base with chemical formula NH2C(CH2OH)3

Q: If you have 0.200 mol of a compound in a 0.810 M solution, what is the volume (in L) of the…

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Q: Timer Calculate the molarity (M) of a solution prepared by dissolving 14.7 g of HCI in enough water…

A: Molarity is defined as number of moles of solute dissolved per litre of solution.

Q: 4) 9.3 mol Au

A: 1 mole of any species contain avogadro number6.022×1023 of particles. Given species is 9.3 mol Au We…

Q: Calculate the equivalent mass of each of the following acids. a . HC2H3O2 b. KHCO3 c. H2SO3

A: Equivalent weight is the mass of one equivalent, which is the mass of a given substance that will…

Q: What is the mass percentage of KBr in a 72.4 g solution with 2.65 g of KBr ? B) 1.68% A) 72.4% C)…

A: Hi, Since you have posted multiple questions, we will solve first one for you as per our guideline.…

Q: . How many grams of NaCl are formed from 96 grams of AICI3?

A: Firstly calculate the no. of moles of aluminium chloride formed and then use the stoichiometric…

Q: Given 1.52×10171.52×1017 molecules of HC2H3O2HC2H3O2, calculate the moles of acetic acid in this…

A: Answer:- This question is answered by using the simple concept of calculation of number of moles…

Q: A mixture contains NaHCO3 together with unreactive components. A 1.76 g sample of the mixture reacts…

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Q: How many moles of HCI are there in 75.0 mL of 0.315 M HCI?

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Q: fine moles of hcl in 0.4488g

A: We have to calculate the moles of HCl in 0.4488 g.

Q: How many moles of solute particles are present in 1 L (exact) of aqueous 0.076 M HNO3? Answer in…

A: Given, Volume of solution = 1L. Molarity of HNO3 = 0.076M.

Q: To what volume (in mL) would you need to dilute 45.0 mL of a 1.20 M solution of NaBr to make a…

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Q: Question attached

A: Mass% is equal to the ratio of the mass of the given substance to the total mass of the solution…

Q: What is the molarity ? 0.46 mol of LiNO3 in 6.24 L of solution Round answer to two significant…

A: given, moles of LiNO3 = 0.46 mol Volume = 6.24 L

Q: A sample is found to contain 66.8 % NaHCO, by mass. What is the mass of NaHCO, in 4.25 g of the…

A: Mass by mass percentage (w/w) When mass of solute in a solution is expressed in grams of solute in…

Q: 4. Calculate the molarity of a solution made by dissolving 35.1g of H2SO4 in enough water to form…

A: Molarity is defined as number of moles of solute per litre of solution.

Q: How many moles are present in 0.140g of HCl?  Answer to 3 sig figs.

A: Mole = mass / molar mass

Q: 17. Calculate the molar mass of Potassium carbonate, K,CO, 138.21 g/mole 99.11 g/mole 67.11 g/mole…

A: We know the chemical formula of potassium carbonate is K2CO3

Q: mss percent 1.5 moles of KOH+309 moles of H20

A: The question pertains to the calculation of mass percent in a solution containing 1.5 moles of…

Q: he percent by mass of

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Q: N₂(g) + 3H₂(g) = 2 NH3(g) what. Hydrogen gas? 1. In the Haber if add you process, more happens

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