Chem 1211 Lab Atomic Spectroscopy Prelab
Homework Answers
1) 1 = 10-10
m
Thus, wavelength = 4921 ×10-10 m
2) Energy = hc/wavelength
h = planck's constant = 6.626×10-34 J.s
c = speed of light = 3×108 m/s
Wavelength = 5876×10-10 m
Energy = 6.626×10-34×3×108/5876×10-10 J
= 3.383×10-19 J
3) Energy = 6.626×10-34×3×108/4026×10-10
= 4.937×10-19 J
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Chem 1211 Lab Atomic Spectroscopy Prelab
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Chem 1211 Air Bag Prelab
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CHEM 1211L Lab Manual - Page 122 Air Bag Page 1 Pre-Lab Questions Name: Write the mathematical expression for the ideal Gas Law. Identify each symbol and constant used. Calculate the volume of 20.0 g of oxygen at 25°C and one atmosphere of pressure qur NaNo(s); CHEM 1211L Lab Manual - Page 123 3. a. Consider the reaction of potassium with water. Write the balanced chemical equation for this reaction...
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CHEM 1211L La Man -Page CHEM 1211L Lab Manual - Page 6 Post-Lab Questions 1. List experimental factors that might lead to a high % difference between titrations 2. In a titration of a standardized NaOH solution with an unknown acid solution, what assumption would have to be made in order to calculate the concentration of the acid solution? (Write this in the form of a testable hypothesis) 3 How does the molarity of...
Please help with this chemistry lab question
ATOMIC EMISSION SPECTROSCOPY ADVANCED STUDY ASSIGNMENT Name Section Date This assignment MUST be completed before the laboratory period begins. Wavelength values for the hydrogen emission spectrum are required for the experiment. A few answers have been provided for you. You may wish to verify some of these to ensure that your calculation methods and signifcant digits are correct. 1. Calculate energy values for the first SIX hydrogen energy levels usings En =-RH/n--(2.179 x10-18J/n2...
Name: Flame Test Lab Prelab questions: Your instructor may ask you to answer these in your lab notebook in a "prelab" section. online or they may ask you to write your answers in your lab manual and submit them before starting your experiment. Follow your instructor's directions 1. Determine the frequency of photon of light that gives off 2.85 x 10-19 Joules. (Show all your work) so. The color would be orange/ red. 5hv (2.85 x/ 0J) - 16.626810**/s) v...
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Name Chemistry 1211L Limiting Reactant Recitation Worksheet Complete the following questions in the space provided. Once you have an answer for each question, discuss it with your lab partner. What is the formula of the ionic compound iron (II) chloride (5 points)? 1. What is the formula of the molecular compound hydrogen sulfide (5 points)? 2. When iron (I) chloride and hydrogen sulfide react in the gas phase, they produce hydrogen chloride and iron (II) sulfide. Write a...
A student records the following wavelengths (to ±10 nm) for the
helium emission.
Extension Requests Print Assignment Question 12 3 456 Total -2 -fi 4.9/5-1-11-1 4.9/11(44.5%) Points Assignment Submission Description For this assignment, you submit answers by question parts. The number of submissions ramaining for each question part only changes if you submit or change the answer Quantum States for the Visible Hydrogen Atomic Emission Spectrum Assignment Scoring Your last submission is used for your score. 1. -12 points UCSCGenChemL1...
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