User Account

All Pages

In an electron microscope electrons are accelerated to

Assignment Help Chemistry
Reference no: EM13595563

In an electron microscope, electrons are accelerated to great velocities. Calculate the wavelength, in m, of an electron traveling with a velocity of 7.0 megameters per second. The mass of an electron is 9.1 * 10^-28 g?

a. 1.0 * 10^-13 m
b. 1.0 *10^-7m
c. 1.0m
d. 1.0 *10^-10 m
e. 2.5m

Reference no: EM13595563

Questions Cloud

Liquid nitrogen has a density of 0808 gml at -196 c if 4400 : liquid nitrogen has a density of 0.808 gml at -196 c. if 440.0 ml of ln2 is injected into a weather balloon to inflate
If a 1223 g sample of aluminum metal is heated in a : if a 1.223 g sample of aluminum metal is heated in a chlorine gas atmosphere the mass of aluminum chloride produced is
Compute the break-even point in dollars for 2012 lt-- i got : gorham manufacturings sales slumped badly in 2012. for the first time in its history it operated at a loss. the
Calculate the wavelength in nanometers of the light emitted : calculate the wavelength in nanometers of the light emitted by a hydrogen atom when its electron falls from the n7 to
In an electron microscope electrons are accelerated to : in an electron microscope electrons are accelerated to great velocities. calculate the wavelength in m of an electron
A block of dry ice whose mass is 244 g sublimes in a room : solid co2 dry ice sublimes with deltahsubl 25.2 kjmol at 195 k. a block of dry ice whose mass is 24.4 g sublimes in a
Calculate the energy of a photon of blue light that has a : calculate the energy of a photon of blue light that has a wavelength of 432 nm.a. 8.59 10-17 tb. 4.60 10-19 tc. 8.59
On a cool rainy day the barometric pressure is 730mmhg : on a cool rainy day the barometric pressure is 730mmhg. calculate the barometric pressure in centimeters of water
In lab an isomerization of dimethyl maleate in the presence : in lab an isomerization of dimethyl maleate in the presence of bromine to form dimethyl fumarate was conducted using a

Reviews

Write a Review

Chemistry Questions & Answers

  Explain elimination reaction of alkene with sodium methoxide

This question about comparing elimination reaction of alkene with sodium methoxide and potassium tert-butoxide compare the results of the two E2 reactions you ran and discuss how using different bases affects the product composition

  Define the minimum ph at which cr(oh)3(s) will precipitate

In a particular solution, [Cr3+]=3.9x10-4 mol/L. What is the minimum pH at which Cr(OH)3(s) will precipitate from this solution. Assume the temperature is 25oC. For Cr(OH)3(s), Ksp=6.3x10-31 at 25oC. Give your answer with three digits

  A solution of water kb0512 c and glucose freezes at 415

a solution of water kb0.512 c and glucose freezes at 4.15. what is the molal concentration of glucose in this solution?

  Which compound will exhibit the greatest dipole

which compound will exhibit the greatest dipole moment?a z 12-dicholoro-12-diphenyletheneb e

  State what is the q rxn in joules

When 5.0 g of CaCl2 was dissolved in 50ml of water in a coffee cup calorimeter, the temperature of the solution rose from 22.3 C to 30.5 C. What is the q solution in Joules and what is the q rxn in Joules?

  State balanced chemical equation for the reaction

Write a balanced equation for the reaction of NaCH3COO and HCl. Express your answer as a chemical equation. Identify all of the phases in your answer. Enter no reaction if no precipitate is formed.

  How many moles of co2 are produced

how many moles of CO2 are produced when 5.40 mol of ethane are burned in an excess of oxygen

  Compute the equivanent weight of the acid

calculate the equivanent weight of the acid. (B) How many moles of protons were titrated? (C) How many moles of H3PO4 were titrated? (D) How many grams of H3PO4 were titrated?

  Explain what will be the final temperature of the system

what will be the final temperature of the system when thermal equilibrium is attained

  Explain the molar mass of the solute

volatile solute was dissolved in 40.0 grams of CCl4. The boiling point of the CCl4 was raised by .357 Degrees C. Kb for CCl4 is 5.02 C/m find the molar mass of the solute.

  Evaluate the concentration of the final solution

A volume of 32.2 mL of a 1.16 M KMnO4 solution is mixed with 17.7 mL of .692 M KMnO4 Solution. Caclulate the concentration of the final solution.

  Explain equilibrium concentration of phenanthrene

Predict the aqueous phase equilibrium concentration of phenanthrene at 25*C if the values for this compound are Cs = 1.1 mg/L, P^v = 1.6 x 10^-7 atm, KH = 4.0 x 10^-5 atm*m^3/mol, and logKow = 4.52.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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