How many moles of helium have been evolved

Assignment Help Chemistry
Reference no: EM13165409

A sample of neon is collected by displacing 182 mL of water. The pressures of the gas and the atmosphere are equalized, using the method described in the experiment. The atmospheric pressure is 738 mmHg. The temp of the water and that of the gas are identical at 26°C. How many moles of Helium have been evolved?

Reference no: EM13165409

Questions Cloud

When would creating an index reduce overall database perform : Indexing can affect the performance of a general-purpose database that has roughly equal numbers of fetches and changes. The decision to add an index can improve the performance of a system but can also degrade it.
What is the value of the freezing point depression : 1.20 moles of a nonelectrolyte is dissolved in 1000 g of water. What is the value of the freezing point depression of this solution, given that Kf for water is 1.86 C/m?
Employees may work from home : Employees may work from home up to 15 hours per week. Each project leader needs a list of current means of contacting each member of the project team: home phone and home FAX number. To contact employees "on the road" the project leaders also need..
State what is the mass percent of aceditc acid : what is the % mass of acetic acid in the vinegar? Hint: What is the mass percent of aceditc acid titrated and what is the definition of % mass?
How many moles of helium have been evolved : The temp of the water and that of the gas are identical at 26°C. How many moles of Helium have been evolved?
Explain how to calculate ksp : how to calculate ksp of Ca(OH)2 at 296.25K and 364.95K with Ca(OH)2 being titrated with 0.0523M of HCl and 7.80mL of it added at 296.25K
Advantages and disadvantages of joins and nested queries : One side effect of normalization is that you often need more than one table to get meaningful results. For example, you may have a table that includes a list of parts and the ID number for the vendor of each part. T
How ip addresses are assigned : Identify how IP addresses are assigned in the local area network at your scool or workplace. Were any other methods used to assign IP adreess prior to the current configuration? Why was the current configuration chosen?
Find the contour length : find the contour length (chain length) for a fully extended polythylene molecule that has a degree of polymerization of (n=45000),given that the length of c-c bond is 1.54 Ao.

Reviews

Write a Review

Chemistry Questions & Answers

  Determine the amount of heat produced

Determine the amount of heat produced when 100 g of CH4 combust, CH4 + 2O2 yields CO2 + 2H2O +  1063kJ

  The most common mineral in limestone is calcium crabonate

When Sulfuric acid is a component of polluted air, it chemically attacks statues, memorials, and monuments made from limestone. Given that the most common mineral in limestone is calcium crabonate

  What quantity of heat is involved in changing

How much heat is needed to warm 45.6 grams water from 23.0° C to 40.0 °C?

  What is the boiling point of a solution

How much would an empty volumetric flask, (weighing 27.16 grams, has a volume of 100.4 cm3 ) weigh when filled with bromine, an element that has a density of 3.1028 g/cm3.

  How many moles of naoh are required to neutralize the acid

How Many moles of NaOH are needed to neutralize the acid? D) Calculate the volume of NaOH solution required to react completely with the acid.

  Determine the molarity of solution

Determine how many grams of C 6 H 12 O 6 should be mixed in 563 grams of C 2 H 5 OH) to form a 2.40X10^-2 m solution?

  Calculate the concentration of iron in a dilutedsolution

Calculate the concentration (molarity) of iron in a dilutedsolution if 5.00 mL of 5.0x10^-4 M Fe(NH4)2(SO4)2 6H2O isdiluted with water to 100.0 mL.

  What is the specific heat for the metal

It takes 55.0 J to raise the temperature of an 8.80 g piece of unknown metal from 13.0C to 25.0C. What is the specific heat for the metal? Express your answer numerically, in J/g. C

  What is the balanced equation

Approximately how many grams of calcium nitrate were required to react totally with 40.0 g of sodium carbonate? How many grams of product were formed at that point? Do your answers appear to obey the Law of Conservation of Matter?

  Write the balanced net ionic equations compound with aqueous

Write the balanced net ionic equations for each of the following compounds with aqueous NH4OH 1. HCl (aq) 2. H2SO4 (aq) 3. HNO3 (aq) 4. NaOH (aq)

  Calculate the boiling point of the solution

A solution is prepared by dissolving 27.1 g urea, (NH2)2CO, in 171.2 g water. Calculate the boiling point of the solution. Urea is a nonelectrolyte.

  Explain metals covalently bonded to benzene

Metals Covalently Bonded to Benzene, I've noticed that my book does not mention metals as a possible substituent for mono-substituted benzenes, but it doesn't begin to explain why

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd