Explain how many he atoms are in the balloon

Assignment Help Chemistry
Reference no: EM13333186

A 6.9L balloon is filled with He at 1.00 bar pressure at 298k. How many He atoms are in the balloon?

Reference no: EM13333186

Questions Cloud

Write a trigger and two test sql statements : Write a trigger and two test sql statements. The first statement should succeed and the second statement should fail (i.e., the second statement violates the constraint and your trigger must block it and issue an error message).
Determine what is the internal rate of return : The cash inflows generated by the project are estimated at $76,000 for the first two years and $30,000 for the following two years. What is the internal rate of return
Explain the reducing agent and what is the oxidixing agent : In the following reaction, Zn (s) + CuSO4 (aq) ? ZnSO4 (aq) + Cu (s) What is the reducing agent and what is the oxidixing agent
What is the yield today for 2-year treasury securities : If the pure expectations theory is correct, what is the yield today for 2-year Treasury securities?
Explain how many he atoms are in the balloon : A 6.9L balloon is filled with He at 1.00 bar pressure at 298k. How many He atoms are in the balloon?
Find the direction of the tensile force acting on the spring : A 1.50 kg mass is hung from a vertical spring with k=30.0 N/M, what is the magnitude and direction of the tensile force acting on the spring
Explain the highest oxidation number : Which substance below would contain a nitrogen atom with the highest oxidation number of all those shown? a. NO2 b. N2 c. NH4^1+ d. NO3^1- e. NH3
How much overhead should be allocated to the ending goods : During the current period, Department A finished and transferred 50,000 units to Department B. Of the 50,000 units, 20,000 were 1/5 complete at the beginning of the period and 30,000 were started and completed during the period.
What torque does he supply : A human-sized version of the popular "hamster wheel" is shaped like a cylindrical shell and has a radius of 2.25 m. A person running on the wheel applies a horizontal force of 148 N to the bottom of the wheel. What torque does he supply

Reviews

Write a Review

Chemistry Questions & Answers

  What concentration of aqueous nacl solution freezes

What concentration of aqueous NaCl solution freezes at -15.2ºC? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.

  Explain what is the molarity of a saturated aqueous solution

The Ksp for BaCO3 is 5.0 x 10-9. What is the molarity of a saturated aqueous solution of BaCO3

  Compute molar composition and volumetric flow rate of gas

An ore containing 24% solid inert and 76 mol% iron pyrites (FeS2) is roasted in the presence of dry air at 500 °C and 1 atm. Considering the given reactions.

  Explain molecule has no cis-trans isomers

The sum of the substituent positions do not add up to lowest possible number. -The double bond in the ring does not contain the number one carbon. -Molecule has no cis-trans isomers. -The wrong name for the benzene derivative is used

  Calculate the equilibrium concentrations for all species

Calculate the equilibrium concentrations for all species: B. Calculate the value of the equilibrium constant, K.

  How much heat is produced when 12.5 grams of ethanol burns

Gasohol contains ethanol (C2H5OH) which when burned reacts with oxygen to produce CO2 (g) and H2O(g). How much heat is produced when 12.5 grams of ethanol burns.

  Explain what effect will that have on the delta t values

what effect will that have on the delta T values when the initial value is measured with the thermometer and the latter is measured with the temperature probe? How will this affect the calculated change in heat of that substance?

  Explain stock solutions of tris base and tris acid

If you have 0.05M stock solutions of Tris Base and Tris Acid, how much of each would you use to make 100 ml of 0.05M Tris buffer at pH 8.8? The pKa of Tris is 8.3.

  Two dimensional arrays with both positive and negations ions

This is for two dimensional arrays with both positive and negations ions alternating in a square pattern. I am given the hint to select an area with boundries through the middle of the outermost ions-ie the edge ions count as 1/2

  Compute the boiling point of a solution

Calculate the boiling point of a solution prepared by dissolving 70.0 g of naphthalene, C10H8 (a nonvolatile nonelectrolyte), in 220.0 g of benzene, C6H6. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.

  Explain what minimum mass of succimer is needed to bind

What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream. Assume that patient blood lead levels are 0.530 mg/L , that total blood volume is 5.0 L , and that 1 mol of succimer binds 1 mol of lead.

  Determine what volume of nitrogen is released

Determine what volume of N 2 is released at 0.915atm of pressure and at the temperature of 25 degree celcius from a tank full of liquid N 2 ? (d=0.808g/mL)

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