number of moles

Q: How many grams of NaOH  are there in 183 grams of an aqueous solution that is 2.65% (w/w) NaOH ?…

A: Weight concentration of a solution is expressed as % w/w. Like before, this stands for weight per…

Q: 4. How many grams of NaCl is needed to prepare a 0.87 M 500 mL solution?

A: Given,  Concentration of NaCl solution = 0.87 M  Volume = 500 ml = 0.5 L

Q: Calculate the molarity of 0.600 mol of Na2Sin 1.70 L of solution. molarity= Calculate the molarity…

A: a) 0.353 M  b) 0.677 M

Q: What is the initial volume, in milliliters, needed to prepare each of the following diluted…

A: Let's use the concentration equation, which states that- M1V1 = M2V2 So, we got: 18.0 × V1 = 7.00 ×…

Q: What is the molarity of a solution that is prepared by dissolving 10g Potassium chloride in enough…

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Q: What is the percent NaOCl by mass in an aqueous 5.00 molal NaOCl solution? a.35.5% b. 5.00% c.…

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Q: Calculate the percent by mass of a solution composed of 35g of KNO3 and 57.5G of H2O

A: Given that : Mass of KNO3 = 35g Mass of H2O = 57.5g Percent by mass of solution =?

Q: A 30.00%-by-mass solution of nitric acid in water has a density of 1.18 g/cm3 at 20°C. What is the…

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Q: What is the molarity, M, of a solution that contains 10.58 g of NaCl (58.44 g/mol) in 407.504 mL of…

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Q: Calculate the molarity of the following aqueous solutions: (a) 0.540 g of Mg(NO3)2 in 250.0 mL of…

A: It is required to calculate the molarity of 0.540 g of Mg(NO3)2 in 250.0 mL of solution, which can…

Q: Calculate the grams of solute in each of the following solutions:  (a) 3.3 L of 0.47 M K2CrO4  (b)…

A: Molar mass of k2CrO4 = 194.1896 g/mol M.M of HC2H3O2 = 60.052 g/mol M.M of HNO3 = 63.01 g/mol

Q: What is the %(m/m) of a solution prepared by dissolving 25 g of solute in 85 g of solvent?

A: The mass/mass percent (% m/m) is defined as the mass of a solute divided by the mass of a solution (…

Q: Calculate the molarity of 39.0 g of table sugar (C12H2201) in 100. mL of solution. M

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Q: What is the molarity of a solution made by mixing 104.6g of NaClO4 in enough water to make the final…

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Q: Calculate the number of moles of solute present in each of the following aqueous solutions: 86.4 g…

A: Various solutions of chemical compounds are prepared in chemistry. The concentration of these…

Q: What is the molarity of each of the following solutions:(a) 15.0 g of Al2(SO4)3 in 0.250 mL…

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Q: What is the concentration in molarity of an aqueous solution which contains 17.51% by mass ethanol…

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Q: ution is formed by dissolving 25.0 g of NaC is the mass of solution? 25.0 g 750.0g 775.0 g

A: Given, Mass of solute (NaCl) = 25.0 g Mass of solvent (H2O ) = 750 g Mass of solution = mass of…

Q: NWhat mass of water is necessary to prepare the following solution? 180.0 g of a 2.500 % sugar…

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Q: 4.) "Rubbing alcohol" is a mixture of isopropyl alcohol (C3H,OH) and water that is 70 percent…

A: Given mass percent of C3H7OH = 70℅ density of solution = 0.79 g/ml

Q: How many grams of solute are dissolved in 35.0 g of 2.00% (m/m) NaCl solution?

A:

Q: How many mL of 6.0 M H2SO4 solution are needed to prepare 100.0mL of 0.10 M H2SO4 solution?

A: Since the moles of H2SO4 in final 100 mL of 0.10 M solution is coming from only 6.0 M H2SO4 solution…

Q: What is the molarity of a sodium fluoride solution prepared by dissolving 2.51g of Sodium floride in…

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Q: How many moles of solute particles are present in 1 mL ofeach of the following aqueous solutions?(a)…

A: Volume must be converted to Liters. 1ml=0.001Liters.

Q: Calculate the volume of a 3.50 molar solution of H2SO4 made from 49.0 grams of H2SO4

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Q: How many moles of solute are present in each of the fol- lowing solutions? (a) 35.0 mL of 1.200 M…

A: a). Moles of Solute = molarity of solution X volume of solution in L Since volume of solution in L =…

Q: What is the final volume (LL) of each of the following diluted solutions? a 8.0 %% (m/v) KOHKOH…

A: 8% m/v KOH solution means 8 g of KOH is present in 100 ml of solution. 20% KOH solution means that…

Q: the mole fraction of NaCN (Molar mass 49.0 mol) in an aqueous solution is 0.0175, what is the ight…

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Q: A 20.0 % by mass solution of phosphoric acid (H3PO4) in water has a density of 1.114 g/mL at 20°C.…

A: Molarity is calculated by using formula : molarity = moles of solute / volume of solution ( L)  So,…

Q: what is the molarity of a solution with 670 grams of Pb(C3H2O2)4 (molar mass=443.4 grams/mol…

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Q: The mass Percent of a solution prepared by the solving 36.4g of NaCl in 63.6g of water is? A. 1.0%…

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Q: Calculate the grams of solute in each of the following solutions:   (a) 3.4 L of 0.87 M K2CrO4…

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Q: Calculate the percent mass/volume (%m/v) for the solute in each of the following solutions: A.75 g…

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Q: 7. Calculate the normality (N) of a 500 ml. solution containing 20 gms of NaOH (Mm 40 g/mole),

A: Molarity of the NaOH = ( mass of NaOH /molar mass of NaOH • volume of the Solution )  Molarity of…

Q: A 9.50 % by mass solution of acetone (C3H6O) in water has a density of 0.9849 g/mL at 20°C. What is…

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Q: How many grams of glucose, 2 points C6H1206, are needed to make 5.00 L of 5.0O M solution? H=1.007…

A: Grams of glucose needed to make 5L of 5M solution is as follows

Q: %3D What mass of NAOCOCH3 is needed to make 20.0 mL of a 1.00 M solution? Molarity (M) = moles /…

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Q: mass of CuSO4·5H2O(s) required to prepare 100.0 mL of 0.100 M solution.

A: Molarity (M) of a solution is defined as the number of moles of solute dissolved per volume of the…

Q: What is the molarity of a solution contining 42.0g of LiOH in water that produces a final volume of…

A: Definition: Molarity is a concentration term for a solution. The molarity of a given solution is…

Q: What is the %(m/m) of a solution prepared  by dissolving 35 g of solute in 55 g of solvent?

A: Given 35 g of solute dissolved in 55 g of solvent. To determine %(m/m)

Q: What is the molarity of a 11.58% by mass sucrose (C12H22O11) solution? Assume the density of the…

A: The molar concentration (also known as molarity, concentration of quantity or concentration of…

Q: Ethylene glycol is the primary component in antifreeze. How many grams of ethylene glycol…

A: Molarity of a substance is termed as the moles of solute per liter of solution. Given data, Molarity…

Q: How many g of solute are needed to prepare the following solution 4.50 * 10^2 g of 4.00% (m/m)…

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Q: 3. What is the % by volume of rubbing alcohol, an aqueous solution of liquid isopropyl alcohol, in a…

A: Note : As per our guidelines we are supposed to answer first question. Please repost other question…

Q: when 0.5L of a 12M solution is diluted to 1.0L, what is the molarity of the new diluted solution?

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: 17.5 mL of a 0.183 M CuNO3 solution are diluted with 13.3 mL of water. What is the new molarity of…

A: Initial molarity (M1 ) = 0.183 M Initial Volume (V1 ) = 17.5 mL Final Volume (V2 ) = 17.5 mL +13.3…

Q: What is the mass percent (m/m), of a solution prepared from 50.0 g NaCl and 150.0 g of water?

A: Given :-  Mass of NaCl = 50.0 g  Mass of water = 150.0 g  To calculate :-  Mass percent of solution…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.