User Account

All Pages

What is the wavelength

Assignment Help Chemistry
Reference no: EM132131901

A hydrogen atom emits a photon as its electron changes from n = 5 to n = 2. For the H atom, En = -2.18E-18*(1/n2) J.

What is the wavelength (in m) of the photon? 

( ) m

The number of significant digits is set to 3; the tolerance is +/-1.0%

In what region of the electromagnetic spectrum is this photon found? Please enter the full name of the spectral region - infrared, visible (400-700 nm) or ultraviolet. 

( )

Reference no: EM132131901

Questions Cloud

Determine the mass of chlorine in the original sample : Determine the mass of chlorine in the original sample (39.096g) as the difference in mass between the anhydrous sample (38.585g) and the mass of copper.
Percentage yield in conversion : 1.00 mole of sodium carbonate (formula mass 106.0) is converted to sodium chloride, Na2CO3(s) + 2HCl(aq)® 2NaCl(aq) + H2O +CO2(g).
Air in the chamber occupy : A decompression chamber used by deep-sea dives has a volume of 10.3 m3 and operates at an internal pressure of4.5atm. What volume, in m3 would the air
Concentration of alcohol in the beverage : An 80-proof brandy is 40.0% (v/v) ethyl alcohol. The "proof" is twice the percent concentration of alcohol in the beverage
What is the wavelength : A hydrogen atom emits a photon as its electron changes from n = 5 to n = 2. For the H atom, En = -2.18E-18*(1/n2) J.
Electron configuration of the element : Why would copper ions have 2 common charges? Explain each of them in terms of the electron configuration.
Pressure of the o2 gas in the initial mixture : A sealed vessel contains a gaseous mixture of H2 and excess O2. The mixture is at 500 K and has a total pressure of 140 kPa. After all of the hydrogen is reacte
What is the final temperature of the system : An 18g ice cube initially at -10C is dropped into 120 g of water initially at 25C. What is the final temperature of the system after all of the ice has melted
What is the ethanol content of the mouthwash sample : What is the ethanol content of the mouthwash sample?

Reviews

Write a Review

Chemistry Questions & Answers

  Explain gallium-68 decays by positron emission

Gallium-68 decays by positron emission, with a half-life of 68.3 min. How much 68Ga remains from a 10.0 mg sample after 683 min

  A 100 l vessel at o c contains 019 mol h2 and 19 mol ch4

a 1.00 l vessel at o c contains 0.19 mol h2 and 1.9 mol ch4. calculate the pressure of gas mixtureand the partial

  The venom of biting ants contains formic acid hcooh

question 1 how much naoh would you need to dissolve in water in order to prepare 1.50 l of a naoh solution in which

  Explain the mixing of the two solutions in a buffer

determine whether or not the mixing of each of the two solutions indicated below will result in a buffer. 150 mL of .10M HF, 135 mL of .175M HF

  Explain what is the pressure of the oxygen formed

You conbine 16.0g of KO2 with the CO2 in 4.00L tank, in which the gas pressure is 1.24 atm at 23.0C. What is the pressure of the oxygen formed if captured in 2.50L flask at 25.0C

  How differentiating 1-pentyne from 2-pentyne

Would MS help you with either of these problems? If yes, explain how. a) differentiating 1-pentyne from 2-pentyne

  Explain what is the average of the five measurements

A student measures the volume of water delivered by a 1 mL volumetric pipette several times and records measurements of 1.00, 0.97, 1.03, 1.01 and 1.03 mL. What is the average of the five measurements. Report your answer to 5 significant figures a..

  Explain the specific heat of the solution can be assumed

The temperature after the reaction is 25.23 C. If the density of final solution is 1.02 g/mL, calculate q, if the specific heat of the solution can be assumed to be equivalent to that of water.

  Compute the volume of onem solution of hcl

Calculate the volume of 1M solution of HCL needed for 1 unit shift of the pH of the following solutions: A. 100 mL of 0.01 M solution weak acid (pKa = 6) and 0.05 M of its sodium salt

  Explain solution of hcl from a concentrated dolution

Describe how you would prepare 500 ml of a 0.200 M solution of HCl from a concentrated dolution of 12.0 M HCl

  State what is the overall conversion of a

Equilibrium constant (Kc) is 1 and inital concentrations of A and B are Cao and zero (Cbo = 0), respectively. Da is equal 2 for each reactor in series configuration. What is the overall conversion of A for above equilibrium reaction?

  Explain a gaseous compound containing carbon and hydrogen

A gaseous compound containing carbon and hydrogen was analyzed and found to consist of 83.65% carbon by mass. What is the empirical formula of this compound

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