A sample of 18.11 grams of sodium hydroxide is weighed out on a balance and prepared to a volume of 2.00 x 102 mL in water.  What is the molarity of this aqueous solution of NaOH?  Express your answer to the correct number of significant figures and include the unit with your answer.

Q: There are many minerals which contain silver. A 2.22 g sample of one of these, matildite, is placed…

A: The reaction between silve and magnesium chloride for analysis of Ag in matildite . 2 Ag + MgCl2 → 2…

Q: A laboratory procedure calls for making 520.0 mL of a 1.2 M KNO3 solution. How much KNO3 in grams…

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Q: A chemist wants to make 6.5 L of a 0.280M CaCl2 solution. What mass of CaCl2 (in g) should the…

A: Molarity of a solution is defined as the number of moles of solute present in one litre of the…

Q: A student asked to prepare 2.5 L of a 3.5 M CuSO4 solution. The student placed 400.0 grams of CuSO4…

A: Calculate the number of moles of copper (II) sulfate present in 2.5 L of 3.5 M solution. n = C ×…

Q: A chemistry student weighs out 0.110 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: • Concentration = No.of MolesVolume• No.of Moles = Concentration x Volume•  No.of gram Equivalent =…

Q: A 25.1 g25.1 g sample of magnesium reacts with excess silver nitrate to produce silver metal and…

A: Mass of magnesium = 25.1 gTotal mass of solid metal after reaction = 61.3 g Molar mass of magnesium,…

Q: A chemistry student weighs out 0.152 g of ascorbic acid (H,C,H,O), a diprotic acid, into a 250. mL…

A: Here we first calculate molarity of ascorbic acid, then use total volume strength equation.

Q: A 78.00 mL sample of 0.76 M nitric acid is introduced into a flask, and water is added until the…

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Q: In order to form a monolayer of stearic acid (in a petri dish that measures 14.50 cm in diameter),…

A: Density of a substance is useful in the identification of pure substances and characterization with…

Q: A chemistry student weighs out 0.127 g of chloroacetic acid (HCH2ClCO 2) into a 250. mL volumetric…

A: We have to calculate the volume of NaOH needed to reach equivalence point

Q: You have been provided with a 35.7 mL sample of lithium hydroxide (LiOH) of unknown concentration.…

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Q: In the laboratory you dissolve 15.5 g of barium nitrate in a volumetric flask and add water to a…

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Q: What volume of 0.204 M NaOH, in milliliters, contains 35.0 g of NaOH? Volume = mL

A: NaOH has a molar mass of 39.997 g/mol. This means that one mole of NaOH has a mass of 39.997 g.…

Q: An aqueous solution of sodium nitrate, NaNO3 , is made by dissolving 26.7 grams of sodium nitrate in…

A: Given data, Mass of sodium nitrate = 26.7 g Volume of water = 300mL

Q: A chemist prepares a solution of aluminum chloride (AICI,) by weighing out 49.9 g of aluminum…

A: Given: grams of aluminum chloride = 49.9g Volume = 400mL The concentration value in g/dL is…

Q: A chemistry student weighs out 0.105 g of sulfurous acid (H,SO,), a diprotic acid, into a 250. mL…

A:

Q: You are making a rubbing alcohol (=isopropyl alcohol) solution to disinfect surfaces. You start with…

A: • The values provided in the question are:-    i) Initial volume of isopropyl alcohol solution, V1…

Q: At a certain temperature, an aqueous solution is 16.5% K2CO3 by mass and has a density of 1.149…

A: Given: density of solution = 1.149 g/cm3 Molar mass of K2CO3 = 138.205 g/mol Mass percent of…

Q: You are asked to conduct an experiment where you will combine hydrochloric acid nd sodium hydroxide…

A: To find the total volume of the solution in the beaker at the end of the experiment, you need to add…

Q: A chemist prepares a solution of aluminum sulfate (Al2(SO4)3) by measuring out 15.g of aluminum…

A: Mass of aluminum sulfate = 15 g

Q: In the laboratory you dissolve 23.8 g of aluminum bromide in a volumetric flask and add water to a…

A: To calculate the molarity of the solution, we need to first determine the number of moles of…

Q: chemist prepares a solution of nickel(II) chloride NiCl2 by measuring out ×1.010^2μmolof nickel(II)…

A:

Q: A chemist prepares a solution of potassium dichromate (K,Cr, O,) by measuring out 63.7 µumol of…

A:

Q: When a sample of vinegar was titration, 0.0152 moles of NaOH were involved in the reaction. How many…

A: To determine the amount of acetic acid (CH3COOH) in the sample of vinegar, we need to use the…

Q: A chemist prepares a solution of potassium iodide (KI) by weighing out 0.5448 kg of potassium iodide…

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Q: themist prepares a solution of potassium chloride (KCl) by measuring out 43. mg of KCl into a 50. mL…

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Q: If 120 mL of a 1.2 M glucose solution is diluted to 550.0 mL, what is the molarity of the diluted…

A: Number of moles of solute present in 1 liter of solution is known as molarity of the solution.…

Q: A)  Calculate the molarity 12.21 mg KI in 107.6 mL of solution         Express your answer using…

A: Molarity of a solution is defined as the number of moles of solute to the total volume of solution.

Q: Answer the following question: A student wants to make a 1.600 M aqueous solution of barium sulfate,…

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Q: If 25.00 mL of a solution of sodium hydroxide (NaOH) is exactly neutralised by 13.47 mL of 0.131 mol…

A: To find the concentration of the sodium hydroxide (NaOH) solution, we can use the stoichiometry of…

Q: How many ml of concentrated hydrochloric acid (16.0 M) is required to prepare 251 ml of 6.00N…

A: Normality= n× Molarity Where n is the acidity or basicity of solution. For HCl the basicity will be…

Q: How many mL of concentrated hydrochloric acid (16.0 M) is required to prepare 251 ml of 6.00 N…

A: The question is based on the concept of solutions. we have been given a stock solution and we have…

Q: Chlor-alkali plants electrolyze NaCl to produce the commodity chemicals caustic soda and chlorine…

A:

Q: A chemist prepares a solution of potassium chloride (KCI) by measuring out 0.80 g of KCI into a 100.…

A: Please find your solution below :

Q: A chemistry student weighs out 0.156 g of lactic acid (HC₂H₂O3) into a 250. mL volumetric flask and…

A: C3H5O3H  +   NaOH   ----->  C3H5O3Na  +  H2OSince, 1 mol of NaOH is required to react with 1 mol…

Q: An analytical chemist weighs out 0.159 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Neutralization reaction : Equivalent amount of acid reacts with a equivalent amount of base This…

Q: Calculate the mass (in grams) of oxalic acid (H2C2O4) needed to make 100.0 mL of a 0.250 M solution.…

A:

Q: molarity

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Q: A chemist prepares a solution of iron(III) bromide (FeBr,) by weighing out 152.1 g of iron(III)…

A: Concentration: The concentration of a solution can be represented in several ways like g/L, ppm.…

Q: How many moles of solute are present in 300. mL of a 0.60 M solution of NaOH? Please report your…

A:

Q: In many communities, water is fluoridated to prevent tooth decay. In the United States, for example,…

A: moles = mass/ molecular mass or atomic mass since atomic mass of F = 19 gm /mol dividing by 1000 to…

Q: Suppose 0.433 g of zinc chloride is dissolved in 150. mL of a 19.0 m Maqueous solution of potassium…

A: Given, The mass of zinc chloride = 0.433 g. Volume of potassium carbonate = 150. mL Molarity of…

Q: 3.45 mol of LiCl in 3.53 L of solution Express the molarity in moles per liter to three significant…

A: Given  (a)  Number of mole of LiCl = 3.45 mole        Volume = 3.53 Liter        Molarity = ?  (b)…

Q: u

A: Calculate the mass (in grams) of oxalic acid (H2C2O4) needed to make 100.0 mL of a 0.250 M solution.…

Q: Suppose 2.92 g of copper(II) acetate is dissolved in 50. mL of a 0.60 M aqueous solution of sodium…

A: Step 1: Calculate the number of moles of copper(II) acetate: First, we need to convert the mass of…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Answer

Q: A student prepared a standard copper solution by combining 2.63 mL of stock 0.270 mol/L copper(II)…

A: Recall the following relation        V1×M1=V2×M2Given that,initial volumeV1=2.63 mL        initial…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.