You need to make an aqueous solution of 0.240 M potassium bromide for an experiment in lab, using a 250 mL volumetric flask. How much solid potassium bromide should you add

Q: A student wants to make a 250 mL stock solution with a concentration of 1000 mg -N/L. The student…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 182 −mL−mL sample of a 1.3 MM sucrose solution is diluted to 600 mLmL .     Part A What is the…

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Q: What mass of cesium bromide must be added to 0.500 L of water (d = 1.00 g/mL) to produce a 0.913 m…

A: Molality is defined as the number of moles of solute dissolved per kilogram of the solvent. That is,…

Q: Say you have 2.50 M CaSO4 solution and you need 300. mL of 0.400 M CaSO4. How can you prepare this…

A: Given:  Initial molarity of CaSO4 solution = 2.50 M Final molarity of CaSO4 solution = 0.400 M Final…

Q: How many grams of sodium hydroxide is required to make 250.0 mL of a 0.410 M sodium hydroxide…

A: Given,  The molarity of sodium hydroxide ( NaOH) = 0.410 M.  The volume of the solution = 250.0 mL.…

Q: What volume of a 0.540 M NaOH solution contains 12.5 g of NaOH?

A: Molarity is defined as the number of moles of solute dissolved per liter of the solution. Molarity,…

Q: You need to make an aqueous solution of 0.140 M manganese(II) sulfate for an experiment in lab,…

A: we have to calculate mass of manganese(II) sulfate needed to prepare the solution

Q: How many mL of a 9.6 M stock solution would you need to make 913 mL of a 3.2 M solution?

A: We have to make 913 ml of 3.2M solution. Since, we know that the molarity = moles of solute per…

Q: You are given a small beaker of solution at room temperature. You add a bit of solute to the…

A: An unsaturated solution is the one in which solution can be dissolved at constant temperature,

Q: You have 450 mL of a 0.125 M HCI solution and you want to dilute it to exactly 0.100 M How much mL…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: You need to make an aqueous solution of 0.168 M iron(III) bromide for an experiment in lab, using a…

A: Given that, Molarity of FeBr3=0.168 M  Molar mass = 295.56 g mol-1 Volume=300 ml = 0.300 L  Mass of…

Q: In the laboratory you are asked to make a 0.150 m cobalt(II) chloride solution using 15.9 grams of…

A: Given that:              Molality of Cobalt (II) chloride solution = 0.150 m…

Q: 6.0 M HCl solution must be diluted to 0.50 M. If the diluted solution has a total volume of 300.0…

A: Assuming V mL of the concentrated HCl is needed Since the process is dilution  hence the moles of…

Q: A solution of dispersant is made by taking 10.0 mL of a 80.0 mg⋅mL−1 solution of Tween 80 and mixing…

A: Given: Volume of solution of tween 80 used = 10.0 mL Concentration of tween 80 in the solution =…

Q: What volume of a 12.0 M HNO3 solution should you use to make 850.0 mL of a 0.250 M HNO3 solution?…

A: Molarity of solution , M1 = 12.0M Volume of solution, V1 = ? Molarity of solution , M2 = 0.250M…

Q: How many milliliters of a 0.900% (m/v) normal saline solution can be prepared from 3.50g of sodium…

A: Weight/Volume Percentage Concentration is a measurement of the concentration of a soluton.  It…

Q: an experiment you need 2.6 liters of of 1.6 M NaOH.  In the stockroom you have 5.8 M NaOH.  How many…

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Q: In the laboratory, a student dilutes 17.8 mL of a 8.25 M hydroiodic acid solution to a total volume…

A: Given: Concentration of concentrated HI solution = 8.25 M Volume of concentrated HI solution = 17.8…

Q: A chemist prepares a solution of copper(II) sulfate  CuSO4  by measuring out  22.μmol  of…

A: Moles of copper (2) sulphate = 22micromole Volume = 300ml

Q: You need to make an aqueous solution of 0.172 M potassium nitrate for an experiment in lab, using a…

A: Given that   Molarity of potassium nitrate (KNO3) = 0.172 M The volume of flask = 125 ml  (that is…

Q: Standard vinegar solutions are about 5% acetic acid by mass. What is the molarity of a 5% vinegar…

A: Vinegar is aqueous solution which contains small amount of acetic acid. Generally vinegar is used as…

Q: The label for oxacillin 2 g vial states that 11.5 mL of Sterile Water for Injection is needed to…

A: Concentration in mg/mL means 1 mg of solute is present in 1 mL of solution. For a solution of same…

Q: Materials Needed: sugar water glasses fork oil teaspoon stones egg yolk Procedure: 1. Put one…

A: Materials :       Sugar                            Glasses                         Water…

Q: A laboratory assistant needs to prepare 166 mL of 0.152 M CaCl2 solution. How many grams of calcium…

A: Given  Volume to prepare CaCl2=166 mL Concentration of CaCl2= 0.152 M The gram of CaCl2 required has…

Q: What volume of a 1.00 M stock solution of glucose must be used to make 500.0 mL of a 1.75 x 10-2 M…

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Q: You wish to make a 0.213 M hydrobromic acid solution from a stock solution of 3.00 M hydrobromic…

A: Given that: Molarity of stock solution of Hydrobromic acid (M1) = 3.00M Molarity of hydrobromic…

Q: How many ml of water are required to make a 680 mL and 15 mEq potassium ion solution from a 322 mEq+…

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Q: You need to make an aqueous solution of 0.176 M calcium acetate for an experiment in lab, using a…

A: The number of moles of calcium acetate can be calculated using the molarity equations as:

Q: In the laboratory you are asked to make a 0.350 m aluminum nitrate solution using 18.1 grams of…

A: Molality of aluminium nitrate = 0.35 m Mass of aluminium nitrate = 18.1 g Number of moles of…

Q: A chemist wants to make 20. L of 0.10 M solution of HCl from concentrated HCl. Concentrated HCl is…

A: Molarity of HCl , M1 = 11 M M2 = 0.10 M Volume of HCl , V1 = 20 L  1 L = 1000 mL 20 L = 20,000 mL

Q: A 1185 mL sample of drinking water was found to contain 20.5 mg of lead. Calculate the concentration…

A: Given: Volume of water sample=1185 mL=1.185 L Mass of lead=20.5 mg

Q: A forensic chemist prepares 250.0 mL of a 0.514 M solution using 45.0 mL of a stock solution.  What…

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Q: What volume of 1.2 N CaCO3 solution contains 236.8 grams of CaCO3

A: Normality is a unit of concentration and it is defined as the number of gram equivalents of solute…

Q: In a standardization experiment, 0.5067 g of primary standard sodium carbonate (Na2CO3) was exactly…

A: Provided amount of Na2CO3=0.5067 g Molar mass of Na2CO3=105.989g/mol Equivalent mass of Na2CO3 =…

Q: How many grams of hydrochloric acid are needed to prepare 191.9 mL of a 2.98 M solution?

A: The question is based on the concept of solutions.   molarity is a method of expressing…

Q: You wish to make a 0.397 M nitric acid solution from a stock solution of 6.00 M nitric acid. How…

A: With data's given  We are calculating total volume by using dilution formula as follows

Q: What mass (g) of calcium chloride do you need to make 150.0 mL of a 0.750 M solution?

A: Molarity is defined as the number of moles of solutes present in per litre of solution.

Q: Epsom salt is a product that may be added to a bath to help ease sore muscles. Epsom salt crystals…

A: We are given 4 different samples of Epsom salt crystals 2 of these samples are finely divided i.e…

Q: The bottle labelled “concentrated hydrochloric acid” in the lab contains 12.0 mol of HCl per liter…

A:

Q: An impure sample contains 1.09 g of impurities and 5.07 g of benzoic acid.  The impure sample is…

A: Solubility is used to determine the amount of solute at equilibrium which is dissolve in solvent.

Q: You need to make an aqueous solution of 0.180 M iron(II) iodide for an experiment in the lab using a…

A: Molarity of iron(II) iodide solution = 0.180 MVolume = 125 mLWe need to calculate how much solid…

Q: You have a sugar solution (solution A) with concentration x. You pour one-fourth of this solution…

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Q: please complete the table (volume, dilution factor, concentration of glucose) 2. what is the…

A: 1) Preparation of Standard solutions with different dilution factors      Standard-1:…

Q: See the figure shown here of three beakers with volume of liquid shown equal to 50.0 mL. Using this…

A: Given: Initial volume of diluted solution #1 beaker = 50 mL. And the volume of stock solution added…

Q: In a lab, there are two beakers with a colorless odorless liquid. One beaker contains 89% oxygen and…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: How many mL of a 5.02% copper(I) bromide solution contains 2.66 g copper(I) bromide?  The density of…

A: Mass percent :- The mass of solute present in 100 grams of solution is known as its mass percent .…

Q: You are given a stock solution that is 6.5 M. You pour 45 mL of it into a large beaker. How much…

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Q: You wish to make a 0.350 M hydroiodic acid solution from a stock solution of 6.00 M hydroiodic acid.…

A: From the V1S1= V2S2 we can calculate it .

Q: A chemist wants to make 1.0 L of a 0.997 M NaOH solution. How many grams of NaOH

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Q: In the laboratory, a student dilutes 17.6 mL of a 6.83 M hydroiodic acid solution to a total volume…

A: Given data,Initial molarity of HI (M1)=6.83MInitial volume of HI (V1)=17.6mLFinal volume of HI…