What is the % concentration (w/w) of K in 6.42 grams of KCI, if the mass of K in the sample is 3.51 grams? Round your answer appropriately. Type the answer as though you are filling in the blank: % (w/w).

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 58.6 g of iron(II)…

A: Given, Mass of iron (II) bromide (FeBr2) = 58.6 g Volume of the flask = volume of the solution = 250…

Q: What is the mass of H2SO4 in 1.00 x 102 mL of 0.200 M H2SO4 solution?

A:

Q: Suppose 0.394 g of ammonium chloride is dissolved in 300. mL of a 19.0 m M aqueous solution of…

A:

Q: Calculate the concentration in moles per liter (M) of a solution that contains 0.65 mol0.65 mol…

A: Molarity of AuCl3 in 0.44L of solution is calculated as,

Q: Calculate the molarity of the final solution if 0.12 moles of CaCl2 is dissolved in 25 ml of water.…

A:

Q: If the saturation limit of a solute is 12 g in 100 mL, then a solution containing 3.0 g of solute…

A: Given saturation limit of solute is 12 g in 100 mL. Solution that contains maximum amount of solute…

Q: Calculate the molarity

A: Molarity is the ratio of number of moles of solute to the volume of solution (in L)  number of moles…

Q: For the following questions (Q8-Q12), consider the compound tartrazine (Yellow 5 food dye) that has…

A: Mass of tartrazine = 0.1283 g

Q: How many moles of hydrochloric acid are present in 75.8 mL of 0.765 M hydrochloric acid? Report your…

A:

Q: you need to make up 500.0 mL's of 0.5750 M glucose (180.15 g/mol). What mass of glucose should you…

A: We have to calculate the mass of glucose that we have to take.

Q: 4. what is the percent concentration(mass/volume) of a 2.5 M NaOH solution?

A:

Q: Suppose a group of students working as lab partners mixed four liquid chemicals together. The four…

A: Need to calculate the mass percentage of 2-propanol.

Q: What is the concentration, in mass %, of a solution made by mixing 35.89 g of NaCl with 253.4 mL of…

A: The mass % can be calculated by the ratio between the mass of the solute to the total mass of the…

Q: How many pg hydrogen are in 3.39 x 1015 ng of barium hydrogen carbonate hexahydrate?The answer must…

A: Given, Note: 1 ng = 10-9 g mass of barium hydrogen carbonate hexahydrate [Ba(HCO3)2.6H2O] = 3.39 ×…

Q: 1. Anhydrous (doesn't contain water) sodium sulfate, Na2SO4, absorbs water vapor and is converted to…

A:

Q: Calculate the molarity of the solution when 0.1500 L of solution contains 9.114 g of iron() sulfate.…

A:

Q: How many g of NaHCO3 are required to make 59.9 mL of a 0.511 M solution? Give your answer to 3…

A:

Q: What is the concentration (in M) of a sodium chloride(NaCl) solution prepared by dissolving 16.5 g…

A: Molarity is the ratio of number of moles of solute to the volume of solution (in L)  number of moles…

Q: What is the concentration (in molarity, M) of a solution prepared by diluting 25 mLof 1.35 M sodiurn…

A: The given data contains,  Volume V1 = 25 ml. Molarity M1 = 1.35 M. Volume V2 = 86 ml.

Q: Two solutions, A and B, are labeled "0.14 M CaCl2" and "0.42 M CaCl2", respectively. Both solutions…

A:

Q: What is the mass percent of potassium chloride (KCl) in a solution with a concentration of 2.02 M…

A:

Q: Bha Please don't provide the handwriting solution Please answer both of you

A: The objective of the first part of the question is to calculate the volume of a 4.41 M Na2CO3…

Q: What volume in liters of 9.00 M NaOH contains 4.75 mol NaOH?

A: To determine the volume in liters of a 9.00 M (molar) NaOH solution that contains 4.75 moles of…

Q: A solution is made by mixing 48.2 g of alcohol into 100.0 mL of water (DH2O = 1.00 g/mL). What is…

A: Given ; mass of alcohol = 48.2 g  And volume of water = 100 mL  Since density of water = 1 g/mL…

Q: What is the molarity of 3.5 g NaOH dissolved in 50 g H2O. The solution has a volume of 52.0 mL.

A: Molarity: Molarity is the number of moles of solute present in a unit volume of solution.…

Q: How many moles of HCl are in 298 mL of 2.3 M HCl (density = 1.03 g/mL)?

A: The molarity is a concentration term.  It is defined as the ratio of no of moles of solute with that…

Q: Cheerwine® has a concentration of Red #40 of 62 ppm which can also be stated as 62 mg/L. Convert…

A:

Q: If you have a 12.9 mol of AlCl3 in a 12.5 M solution, how many Liters does it make?

A: By using Molarity definition, No. of moles of solute dissolve in one litre of solution is known as…

Q: What volume of 2.50 M NaOH (40.00 g/mol) contains 0.100 mole of NaOH?

A: Volume of NaOH:

Q: Answer the following question: How many moles of ammonia are in 500. mL of a 2.25 M aqueous ammonia…

A:

Q: What volume, in milliliters, of a 0.185 M solution of KCl contains 2.85 g of the compound? Express…

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.