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: 7. M Determine el nombre IUPAC HO OH OH

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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: How many milliliters of 0.22 M NaCl Contains 0077 0.077 motes 2

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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: For the part underlined in orange, how are we getting moles of OH-? What are the steps. Solve use…

A: To know the concentration of excess reagent, steps to be used are :    1. Calculation of moles of…

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…

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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: Water sample contains HCO3- 2.6E-06 moles/litre CO3-2 3.9E-09 moles/litre CO2 1.9E-07 moles/litre…

A: To calculate values as percentages, follow these stepsDetermine the total moles of all components in…

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: How do I get the volume of HC2H3O2 present (L)? Correct sig fig Given Volume of HC2H3O2 10.00 ml.

A: The volume of the HC2H3O2 is = 10.00 mL The volume of the HC2H3O2 in liter is=?

Q: How moles of NaOH are present in 22.0 mL of 0.120 M NaOH? many moles:

A: Given: The volume of solution is 22 mL. The molarity of solution is 0.120 M. Introduction: Molarity…

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

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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: 5. How many formula units are there in 90.0 g of Mg(OH)2?

A: No of formula unit can be calculated by dividing the given weight and weight of one formula unit.

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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: How many milliliters of acetic acid must obtain in order to have 0.10 moles of acetic acid?

A: To find out volume of acetic acid having 0.10 moles

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…

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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.

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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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