Calculate the total mass of these letters

Assignment Help Chemistry
Reference no: EM13167505

An element has two naturally occurring isotopes. Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4%, and isotope 2 has a mass of 122.9042 amu.

Using scanning tunneling microscopy, scientists at IBM wrote the initials of their company with 35 individual xenon atoms.Calculate the total mass of these letters in grams (m_{rm Xe}=131.29;{rm amu}).

Reference no: EM13167505

Questions Cloud

Compute the free energy change for reaction : Consider the malate dehydrogenase reaction from the citric acid cycle. Given the following concentrations, calculate the free energy change for this reaction at 37.0 °C (310 K). ?G°\' for the reaction is 29.7 kJ/mol. Assume that the reaction occur..
What mass of sodium reacted : A sample of sodium reacts completely with 0.142 of chlorine, forming 234 of sodium chloride. What mass of sodium reacted?
How many moles of cl ion are in the solution : A sample containing .221g Cl is dissolved in 50.0mL of water. How many moles of Cl ion are in the solution?
Write the balanced net ionic equation for basic solution : Write the balanced net ionic equation for the following reaction in basic solution. Be sure to show phase labels in your final answer
Calculate the total mass of these letters : An element has two naturally occurring isotopes. Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4%, and isotope 2 has a mass of 122.9042 amu.
What is enthalpy in vaporation : The vapor pressure of is 100 at 5.4, and the normal boiling point is 56.8 . what is enthalpy in vaporation in kj/mol?
What was the mass of the original gaseous : Liquid NCl3 in a 2.5 L closed container is heated until it decomposes completely to gaseous products. The resulting mixture exerts a pressure
Solution affect the equilibrium constant for the reaction : When Fe(NO3)3 is dissolved in water, hexaaquiron(III) ions, Fe(H2O)6 3+, forms. Fe(H2O)6 3+ ions hydrolyze in aquesous solution accoring to the equation given below.
How many grams of cu2s could be produced : how many grams of Cu2S could be produced if 100.0g of copper is heated with 50.0g of sulfur? what is the amount of excess reactant?

Reviews

Write a Review

Chemistry Questions & Answers

  How many units produced during the second quarter

How many units would have been produced during the second quarter under Lean Production?

  Vitamin b6 is needed in the metabolism of amino acids

Vitamin b6 is needed in the metabolism of amino acids. When it binds to an enzyme it forms a complex with the e-amino group of lysine, which is a primary amine.

  How many grams of cu metal (63.55 g/mol) will be plated out

How many grams of Cu metal (63.55 g/mol) will be plated out of a Cu(NO3)2 solution by passing a current of 3.00 amperes for 11 minutes?

  Define nitrogen and hydrogen combine at high temperature

Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. N2(g) + 3H2(g) --> 2NH3(g) Assume 0.170 mol of N2 and 0.543 mol of H2 are present Initially

  Which effect on atomic size is more significant

which effect on atomic size is more significant, the nuclear charge (p+) or the energy level that the eleectrons are filling explain why.

  What is the minimum temperature reached by the solution

The heat of solution of ammonium chloride is 15.2 kJ/mol. If a 6.253 g sample of NH4Cl is added to 65.0 mL of water in a calorimeter at 26.9°C.

  Explain what is the volume of the gas at stp conditions

What is the volume of the gas at STP conditions? b.) What is the molar volume of the gas?

  Calculate the equilibrium constant, kc

A student ran the following reaction in the laboratory at 689 K H2(g) + I2(g) 2 HI(g)

  Explain compounds of reactions

Compounds of Reactions, Explain why compound A reacts 9000 times faster than compound B at 0 degrees

  Calculate the quantity of heat that is absorbed/released

The heat of vaporization of water at 100°C is 40.66 kJ/mol. Calculate the quantity of heat that is absorbed/released when 9.00 g of steam condenses to liquid water at 100°C.

  State ice will be after the system reaches equilibrium

Assume the total heat capacity of the air C air=30 J/K. Describe what's the likely ice will ne after the system reaches equilibrium. b) Estimate theliekly final temperature after reaching equilibrium

  Calculate the calorimeter constant

Calculate the Calorimeter Constant if 25 g of water at 60C was added to 25 g of water at 25C with a resulting temperature of 35C?

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