Question 2 2.5 pts A 14.2-g sample of HF is dissolved in water to give 2.0...

Question

Question

Answer 1

Answer #1

Molaue Mass 20.01 g/mol HF Gwen Mass 14.2 HF = MBles o HF = Mass Malar Mass 14.2 9 20.01 Hmest Molas HF 0. 7096 mel Moles Ren

Answer 2

Similar Homework Help Questions

1. A l64-g sample of HF is dissolved in water to give 2.0 x 10' ml...

1. A l64-g sample of HF is dissolved in water to give 2.0 x 10' ml of solution. The concentration of solution is: A) 0.82 M B) 0.16 M C) 0.08 M D) 4.1 M E) 8.2 M 2. You have 75.0 mL of a 2.50 M solution of Na,CrO(ag). You also have 125 mL of a 2.01 M solution of AgNOs(ag), Calculate the concentration of Cro. after the two solutions are mixed together. A) 0.00 M B) 0.309 M...
A 17.0-g sample of HF is dissolved in water to give 200. mL of solution. The...

A 17.0-g sample of HF is dissolved in water to give 200. mL of solution. The concentration of the solution is: Select one: a. 0.17 M b. 8.5 M c. 4.2 M d. 0.85 M e. 0.09 M
Question 10 2.5 pts A 61.08-g sample of Ba(OH)2 is dissolved in enough water to make...

Question 10 2.5 pts A 61.08-g sample of Ba(OH)2 is dissolved in enough water to make 1.800 liters of solution. How many mL of this solution must be diluted with water in order to make 1.000 L of 0.100 M Ba(OH)2 3.57 mL 198 mL 19.8 ml 280 mL 505 mL 2.5 pts

REVIEW&CHECK FOR SECTION 4-5 1. A 1.71-g sample of Ba(OH)2(s) was dissolved in water to give...

REVIEW&CHECK FOR SECTION 4-5 1. A 1.71-g sample of Ba(OH)2(s) was dissolved in water to give 250 mL of solution. What is the OH concentration in this solution? (a) 0.010 M (b) 0.040 M (c) 0.080 M (d) 0.10 M 2. You have a 100.-mL volumetric flask containing 0.050 M HCI. A 2.0-mL sample of this solution was diluted to 10.0 mL. What is the concentration of HCl in the dilute solution? (a) 0.10 M (b) 0.010 M (c) 1.0...
A 4.691 g sample of MgCl2 (95.21 g/mol) is dissolved in enough water to give 750.0...

A 4.691 g sample of MgCl2 (95.21 g/mol) is dissolved in enough water to give 750.0 mL of solution. What is the chloride (35.45 g/mol) ion concentration (in molarity) in this solution?
A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution....

A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution. This solution is then added to 165 mL of 0.015 M aqueous Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the solution via precipitation as insoluble PbBr2(s). The precipitation reaction that occurs is: Pb2+ (aq) + 2 Br (aq) ---> PbBr2 (s) At the end of the reaction, what is the concentration (in molarity) of nitrate ions in the solution? Note:...

Question 17 0.5 pts 0.25 mol of solid glucose (C6H120) is dissolved in 100. mL of...

Question 17 0.5 pts 0.25 mol of solid glucose (C6H120) is dissolved in 100. mL of water, what is the (w/w%)-(3 SF) Question 18 0.5 pts What is the w/w% if 293.7 g is dissolved in 1.00 L of water to give a density 1.18 g/mL D Question 19 0.5 pts What is the concentration in V/V% for 250 mL of solution contains 13.1 mL of acetone. (3 SF)
A 6.04 g sample of a solid containing Ni is dissolved in 20.0 mL water. A...

A 6.04 g sample of a solid containing Ni is dissolved in 20.0 mL water. A 5.00 mL aliquot of this solution is diluted to 100.0 mL and analyzed in the lab. The analyzed solution was determined to contain 6.88 ppm Ni . Determine the molar concentration of Ni in the 20.0 mL solution. *concentration= ? M Determine the mass, in grams, of Ni in the original sample. *mass= ? g Determine the weight percent of Ni in the sample....
A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution....

A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution. This solution is then added to 165 mL of 0.015 M aqueous Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the solution via precipitation as insoluble PbBr2(s). The precipitation reaction that occurs is: PB2+(aq) + 2Br(aq) --> PbBr2(s) What is the maximum mass of product that could be isolated by filtration after the reaction occurs?

1.)A 1.998-g sample containing Cl' and CIO," was dissolved in sufficient water to give 250.0 mL...

1.)A 1.998-g sample containing Cl' and CIO," was dissolved in sufficient water to give 250.0 mL of solution. A 50.00-ml aliquot required 13.97 mL of 0.08551 M AgNO3 to titrate the CI'. A second 50.00-ml aliquot was treated with V2(SO4)3 to reduce the CIOA to Cl": CIO:+4V2(SO)) + 4H20 C1 + 1250,2 +8VO2 + 8H Titration of the reduced sample required 40.12 mL of the AgNO, solution. Calculate the percentages of Cl' and CIO, in the sample.