A chemist has a 0.300 M solution of potassium hydroxide (molar mass = 56.1 g/mol). What mass of KOH is dissolved in 3.40 L of the solution? Report your answer to the hundredths place. Answer: g KOH

Q: need help with my chemistry homework! 1. a) Calculate the mass of solid potassium chlorate (KClO3)…

A: Calculate the mass of solid potassium chlorate  required to make 200.0 mL of a 2.00 M solution.…

Q: The concentration unit one part per billion (one ppb) is equivalent to one of solute per of solution…

A: The mass of solute present in per billion mass of the solution is known as part per million (ppm)…

Q: 3. What is the concentration (molarity) of a solution made from 12.5 g of calcium fluoride and 250mL…

A: Molarity = number of moles of solute/volume of solution (in L) Number of moles = mass/molar mass…

Q: Molarity Calculations. Report answers with correct units and number of sig figs please. 1. How many…

A:

Q: A solution labeled “0.110 M CaCl2” would contain _________ mole(s) of Ca+2 and ___________ mole(s)…

A: Since we know that when CaCl2 breaks into there ions it will give 1 mol Ca+ and 2 mol Cl- in…

Q: 2. Find the curve for KNO3, What is the maximum amount of KNO3 can be dissolved in 100 grams of…

A: The question is based on the concept of solubility.  solubility follows a basic principle "like…

Q: ________H3PO4 +_________Ca(OH)2 → Ca3(PO4)2 +________HOH   What is the molar concentration of 250.…

A: The molarity of the solution has to be calculated

Q: How many mL of 0.300 M NaF would be required to make a 0.0775 M solution of NaF when diluted to…

A: In the given question we have to calculate the volume of stock solution  consider,  0.300 M NaF as…

Q: What mass of KBr is required to produce 0.943 L of a 1.11 M KBr solution?  The molar mass of KBr is…

A: The amount of KBr required to produce .943L of a 1.11M KBr solution is given below.

Q: I. Dilution Solution M = moles of solute/volume of solution in liter; moles of solute = MV moles of…

A: Given, Initial concentration of HCl - 12 M Final concentration of HCl - 2 M Final volume of HCl - 4…

Q: 4. When you dilute a solution, you need to add more to the solution. O solvent dilute O solute O…

A: dilution is a process of decreasing the concentration of the solution.

Q: Consider the solubilities of a particular solute at two different temperatures. Temperature (C)…

A: The solution is given below -

Q: n the laboratory a student combines 28.0 mL of a 0.402 M potassium nitrate solution with 12.0 mL of…

A: Equation for the dissociation of the salts KNO3(aq)→K+(aq)+NO3-(aq)K2S→2K++S2- moles of KNO3 = mole…

Q: Starting with a 6.861 M stock solution of HNO3, five standard solutions are prepared via serial…

A: Given : Initial concentration of solution = 6.861 M Initial volume of each solution = 25.00 mL Final…

Q: answer Q1. What mass of K₂CO3 is needed to prepare 200 mL of a solution having a potassium ion…

A: Solution 1). Molar mass of K2CO3 = 138.2 g/mol Volume of Solution = 200 mL Concentration of K2CO3 =…

Q: 7. If you have 2.0 liter of a 3.50 M solution of NaCl, how many grams of NaCl were dissolved in the…

A:

Q: Choose the best answer. Q1. What mass of K₂CO3 is needed to prepare 200 mL of a solution having a…

A: Here we have to  choose correct option about which ion pair will not form precipitate-

Q: Consider 100mL of a certain juice in which the solute concentration is 0.4 mol.L-1. The volume of…

A: • The values provided in the question are:-    i) Initial volume of a certain juice solution, V1 =…

Q: Which will have the highest number of moles of sodium ion:  25.0 mL of 0.20 M NaCl, 20.0 mL of 0.15…

A: We have to tell which option is correct from given choices of options

Q: A 2.50 L solution contains 5.00 g of NaOH, which has a molecular weight of 40.00 What is the molar…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: Concentrated sulfuric acid contains 96.5% w/w H2SO4 in water. If the SG of concentrated H2SO4 is…

A: Given data is The w/w percentage of concentrated sulfuric acid in water = 96.5% SG (specific…

Q: Help

A: Given, Initial molarity of stock solution, M1 = 2.50 M Final molarity of the solution, M2 = 1.25 M…

Q: What NaCl concentration results when 279 ml. of a 0.660 M NaCI solution is mixed with 567 mL of a…

A: Concentration in terms of Molarity is the ratio between total moles of NaCl and total volume.

Q: Choose the best answer. Q1. What mass of K₂CO3 is needed to prepare 200 mL of a solution having a…

A:

Q: A 87.0 mL aliquot of a 0.500 M stock solution must be diluted to 0.100 M. Assuming the volumes are…

A: M1 =0.500 M M2 =0.100 M V1 =87.0 ml V2 =to find

Q: 90 NANO, 80 70 60 CaCl 50 Pb(NO,)2 40 NaCi 30 KCI 20 KCIO, 10 Ce,(SOJa O 10 20 30 40 50 60 70 80 90…

A: Given data: The temperature of a saturated solution of Pb(NO3)2 = 30°C. The mass of Pb(NO3)2 that is…

Q: How many grams of solute are contained in 200 mL of a 4%(wt/vol) solution? A. 8.0 В. 1.2 С. 0.4 D.…

A: Given that -  % (wt/vol) = 4%  Volume of Solution = 200 mL    Then , from following formula -  %…

Q: 1. How many grams of potassium chloride are needed to prepare 400 ml of a 250 M KCl solution? 2.…

A: Formula of molarity and dilution law would be used.

Q: * What is the molarity of a solution resulting from combining 1.23 g of NaCl in 137 g water. The…

A: To solve this problem we have to calculate the molarity of the solution.

Q: Determine the molecular weight of NaCl and calculate the number of grams needed to make a 2-L…

A: First we would calculate molar mass of NaCl using atomic masses .  Then to calculate grams of NaCl…

Q: Which of the following solutions will have the highest concentration of chloride ions? (hint: write…

A:

Q: Part1: 1.05×10-1  m glucose solution made by dissolving the glucose in 100.0 kg of water: ____ mol…

A:

Q: In your first task, you are required to prepare a 100 mL solution of sodium bicarbonate at a…

A: Volume of 0.5 M sodium bicarbonate solution required= 100 mL  Molecular weight of sodium bicarbonate…

Q: A particular solution of KCI (74.55 g/mol) at 25.0 oC has a solubility of 0.13 g/mL. Which of the…

A: The correct answer is 1.71 M KCl. Solubility of the solution is given in g/mL, from which the…

Q: References Use the References to access important values if needed for this question. How many mL of…

A:

Q: Describe how you would make 1.50 liters of a 1.36 M solution of HCI solution from a 12.1 M stock…

A:

Q: If 39.0 mL of 0.54 M H₂SO4 is diluted to a volume of 105 mL, what is the molarity of the resulting…

A:

Q: 5. Calculate the molarities of the following solutions. a. 87.2 g of NazSO4 in enough water to make…

A:

Q: If a solute (with molar mass 55 g/mole) in a solution has a concentration of 159% mass/volume, what…

A: The molar mass of solute is = 55 g/mole The mass/volume percent concentration of the solution is =…

Q: Calculate the mass in grams of NaOH required to make up a 0.855 M aqueous solution in a 1000.0 mL…

A:

Q: How many mL of 0.500 M Nal would be required to make a 0.0850 M solution of Nal when diluted to…

A: Dilution M1V1= M2 V2 V1= M2 V2 / M1 M1 ,M2 molarities V1,v2 volume

Q: Consider the solubilities of a particular solute at two different temperatures. Temperature ('C)…

A: Answer = 23.1 grams

Q: 1. You are given 70.0% (w/w) HNO3 solution. The density of this solution is 1.20 g/mL. Find the…

A:

Q: Calculate the molarity of 5.2 moles of MgCl, in 2.7 L of solution. Report your answer with 3 decimal…

A:

Q: How many milliliters of 0.400 M solution can be prepared by dissolving 5.00 g of NaBr in water?…

A: Given that Molarity of the solution = 0.400 M Mass of NaBr = 5.00 g We know that Molarity of the…

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

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.