Adding helium to a balloon increased its volume from 462.0 mL to 1.510 L. If the final number of moles of helium in the balloon is 20.6 mol, what was the initial number of moles of helium in the balloon? Assume the balloon contained only helium initially. mol 67.329

Adding helium to a balloon increased its volume from 462.0 mL to 1.510 L. If the final number of moles of helium in the balloon is 20.6 mol, what was the initial number of moles of helium in the balloon? Assume the balloon contained only helium initially. mol 67.329

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: what volume (in L) of a 2.55 M sodium chloride solution contains 5.56 moles of sodium and chloride…

Q: Calculate the molarity of a solution prepared by dissolving 12.50 grams of NaNO3 in 250. mL of…

Q: what volume (in L) of a 2.84 M sodium chloride solution contains 6.84 moles of sodium and chloride…

A: Given molarity of NaCl = 2.84 M moles of ions = 6.84 moles

Q: Say you want to dilute a 9.50 M solution of acid to a final concentration of 0.300 M. You need to…

Q: Suppose you need 2.50 L of 2.40 M acetic acid, but only the concentrated acid (17.4 M) is available.…

A: We can use the mole concept to find the volume of stock acetic acid solution required.

Q: you have a 2.50 M solution of lithium nitrate (68.946 g/mol). what volume of solution would you need…

A: Concept introduction: Concentration of a solution is equal to the ratio of number of moles to…

Q: Determine the molarity of a solution formed by dissolving 19 g of NaBr in enough water to yield 755…

A: Number of moles of a substance is equal to the mass of a substance divided by its molar mass.

Q: How many moles of KBr are there in 68.2 mL of 0.150 M KBr?

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

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: 2. Hydrochloric acid (HCI) can dissolve solid iron according to the following reaction: Fe (s) + 2…

A: According to the question, Hydrochloric acid(HCl) can dissolve in solid iron as per the following…

Q: A chemist prepares a solution of sodium bromide (NaBr) by measuring out 73. mg of NaBr into a 100.…

A: We have to calculate the molarity of Br-

Q: If there are 0.10 kg of sodium hydroxide (NaOH) in a liter of solution, what is the molarity of the…

Q: A solution is made by dissolving 20 g of sodium hydroxide, NaOH, in enough water to make exactly…

Q: How many grams of solute are present in 955 mL of 0.380 M KBr?

A: Formula used: Molarity= no.of moles of solute/volume of solution

Q: How many grams of solute are present in 645 mL of 0.200 M KBr?

Q: Determine the moles of water in 1.50 × 103 g of water. options: 1.20 × 102 83.3 8.33 0.0120

A: Number of moles = mass / molar mass ••(1) Atomic mass of H = 1 g/mol Atomic mass of O = 16…

Q: etermine the number of water molecules in 1.00 mole of water. options: 3.00 × 10–23 none of…

A: The answer is given as follows The according to avogadro laws that one mole of any species contains…

Q: How many moles of ammonia are in 500. mL of a 2.25 M aqueous ammonia solution? Find the numerical…

A: we are required to find the number of moles of ammonia from molarity and volume

Q: Calculate the molarity of 79.5 g of HCl in 2.00 L of an HCl solution. Express your answer with the…

A: Molarity =no of moles of solutevolume of solution in litres

Q: 0.306 L and the initial Molarity is 1.941 M, what is the final volume if the final Molarity if the…

A: initial volume(V1)= 0.306 L initial Molarity(M1) = 1.941 M final Molarity (M2) = 0.832 M Using…

Q: what is the molarity of the solution?

Q: In the lab, a student makes a solution of KOH by dissolving 52.0 grams of solid in 255 mL of water.…

Q: You have a 10.0 M sugar solution. What volume of this solution do you need to have 2.00 mol of…

A: The objective of this question is to find out the volume of a 10.0 M sugar solution needed to obtain…

Q: A 10.00 mL sample of a test solution is diluted in an environmental laboratory to a final volume of…

A: The volume of the sample= 10.00 mL The concentration of the sample= c g/L The volume of the diluted…

Q: How many grams of solute are present in 195 mL of 0.310 M KBr?

Q: What volume of 18.0 M sulfuric acid is required to prepare 16.0 L of 0.126 M H2SO4? 8.93 mL 0.112 L…

Q: How many grams of solute are present in 235 mL of 0.680 M KBr?

A: Given: Molarity of KBr solution = 0.680 M Volume of KBr solution = 235 mL = 0.235 L (because 1 L =…

Q: You begin with a 1.80 L solution of 0.679 M HCl. To that solution, you add 2.95 L of a second HCl…

A: The ratio of moles of solute to the volume of solution in liters is known as molarity.

Q: How many liters of a 2.00 M solution can be made from 200.0 g MgBr2? The molar mass of MgBr2 is…

A: Molar mass of MgBr2 = 184.1 g/molMass of MgBr2 = 200.0 gMolarity of MgBr2 = 2.00 mol/L

Q: Iron reacts with oxygen gas to form a mixture of FeO and Fe₂O₃ when the supply of oxygen is limited.…

Q: How many moles of KBr are there in 56.2 mL of 0.150 M KBr

A: Molarity is one of the concentration term which is used to define the concentration of a solute in a…

Q: How much NaOH is in 5.2 L of a 0.48 M NaOH solution? 99.84 g 78.9044 g 74.4006 g 2.72448 g

A: Interpretation: The quantity of NaOH is in 5.2 L of a 0.48 M NaOH solution is to be determined.

Q: Which of the following gas samples would have the largest volume, if all samples are at the same…

A: At same temperature and pressure , volume of a gas is directly proportional to its no. of moles.

Q: A solution of sodium hydroxide, NaOH, contains 3.92 × 10²4 molecules. How many moles of sodium…

A: The objective of this question is to calculate the number of moles of sodium hydroxide (NaOH) in a…

Q: An aqueous potassium iodate (KIO3KIO3) solution is made by dissolving 582582 grams of KIO3KIO3 in…

A: Molarity is the unit of concentration of any solution which is given as moles of solute present in…

Q: An aqueous potassium iodate (KIO3KIO3) solution is made by dissolving 518518 grams of KIO3KIO3 in…

A: The aqueous potassium iodide is given in the solution- Mass of KIO3 = 518 g Volume of the solution =…

Q: You dissolve 138.5 g of NaF in enough water to create a 1.50 L solution. If you take 150 mL of that…

Q: What is the mass of a 5.6 liter (STP) sample of CO2 gas?

A: Given data, CO2 gas = 5.6 L 1 mole of CO2 occupies = 22.4 lit at S.T.P

Question

Adding helium to a balloon increased its volume from 462.0 mL to 1.510 L. If the final number of moles of helium in the
balloon is 20.6 mol, what was the initial number of moles of helium in the balloon? Assume the balloon contained only helium
initially.
mol
67.329

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

What mass of potassium nitrate is in 2.50 L of a 1.26 M solution? The molar mass of potassium nitrate is 101.11 g/mol. O 253 g 201 g O 51.0 g O 318 g
How many grams of solute are present in 565 mL of 0.670 M KBr? mass of solute: 5.0 g
Calculate the molarity of a solution prepared by dissolving 12.50 grams of NaNO3 in 250. mL of solution? The molar mass of NaNO3 is 85.00 g/mol. Write your answer with the correct units on the blank below.
How many moles of KBr KBr are present in 120. mL mL of a 0.114 M M solution?
Suppose 20.4 g of ammonium sulfate is dissolved in 150. mL of a 0.70 M aqueous solution of sodium chromate. Calculate the final molarity of ammonium cation in the solution. You can assume the volume of the solution doesn't change when the ammonium sulfate is dissolved in it. Be sure your answer has the correct number of significant digits.
What volume of 1.0 M sulfuric acid solution is needed to produce 30.0 mL of hydrogen gas? Multiply this stoichiometric volume by five (fivefold excess) and report the total volume of sulfuric acid solution needed in milliliters. Enter a number with three significant digits.
2. A sample containing 4.80g of Oz gas has an initial volume of 15.0L. What is the final volume in liters of a sample of 2.00g of Oz is removed?
How do you calculate the concentration of a solution in units of molarity? a Divide the number of moles of solute by the volume of the solution in liters. Divide the number of moles of solvent by the mass of the solute in kilograms. Divide the number of moles of solute by the b number of moles of solvent. O d Divide the number of moles of solute by the mass of the solvent in kilograms.
you have a 0.510 M solution of magnesium chloride. you put out 463.2 mL of this solution. How many grams magnesium chloride is in that 463.2 mL of solution?
If 14.0 LL of hydrogen chloride gas reacts with 49.5 LL of oxygen gas, what is the volume of chlorine gas produced? Assume all gases are at the same temperature and pressure. HCl(g)+O2(g)→Cl2(g)+H2O(g)
3.57 g of barium acetate is dissolved in water to make 0.02047 L of solution. Calculate the molarity of the solution. Is a molar mass needed for this calculation? Enter either yes or no. If so, calculate the molar mass using our periodic table and enter with the proper s.f. If not, enter 0. Do not include units. g/mol In the three blanks, enter the results of the calculation: value (decimal notation with proper s.f.), units, and substance (in this order).
nitric acid could be used to neutralize barium hydroxide. if you have 0.432 L of a 0.555 M barium hydroxide solution, how much 3.00 M nitric acid will be required to neutralize it 0.240 L 0.160 L 0.0799 L or 0.719 L