N – 0.006590383 moles (3 significant figures). M = m n. = 0.33 grams. 0.006590383 moles. = 50.0729 g mole. = 50. grams/mole or 5.0 10 grams/ mole. 8. ...
Physics Laboratory Report Sample. PHY 223 Lab Report. Newton's Second Law. Your Name: Partner's Full Name(s):. Date Performed: Date Due: Date submitted: Lab Section: (number). Instructor: (Name). Introduction. We verified Newton's Second Law for one-
Conclusion: The experiment is conducted as per the procedure laid down. The specific gravity of soil solids obtained is ______. This value falls in the range 2.6 to 2.75. Hence the type of soil is ______. Post - Viva Questions: 1. What are the standa
CATIA Part Design & Sketcher CATIA® V5R19 TABLE OF CONTENTS Introduction .....1 Manual Format
The Protists - Eukaryotic Organisms Kingdom Protista. Single-celled, eukaryotic organisms are called protists. They are grouped together in. Kingdom Protista. Those protists that ... heterotrophic organisms that occupy marine, freshwater and terrestr
Download Amandel (tonsilitis). − Bau mulut (halithosis). − Tenggorok kering. − Tenggorok berlendir. Untuk dapat menegakkan diagnosis penyakit, diperlukan keterampilan pemeriksaan fisik dan prosedur ... Ruangan tempat pemeriksaan telinga, hidung
applications of chromatography – identification of an unknown ink sample and the separation ... Calculating Rf values and interpreting the results. In order to obtain a quantitative measure of the extent of movement of a component in a paper chromato
Download Amandel (tonsilitis). − Bau mulut (halithosis). − Tenggorok kering. − Tenggorok berlendir. Untuk dapat menegakkan diagnosis penyakit, diperlukan keterampilan pemeriksaan fisik dan prosedur ... Ruangan tempat pemeriksaan telinga, hidung
terkadang menimbulkan misdiagnosis, sehingga dalam melakukan interpretasi EKG perlu juga diketahui data fisik dan data klinis pasien. Pada pembelajaran ini , mahasiswa akan mempelajari bagaimana melakukan pemasangan EKG dan cara menginterpretasi hasi
프로젝트기말발표및보고서due on 6/17 (30 min) ... 토이 박스. 17 Spring 2008
This document is Cisco Public Information. Page 1 of 8. Lab: Basic Router Configuration. Topology ... Introduction to Routing and Packet Forwarding. Lab: Basic Router Configuration. Routing Protocols and ... Step 1: Establish a HyperTerminal session
ASTM D130 . ASTM D4048 . COPPER CORROSION FROM PETROLEUM PRODUCTS Test Method The Copper Strip Tarnish Test assesses the relative degree of corrosivity of
870480022 / 00 p. 3/9 PERFORMANCE a) Reproducibilidad: procesando 20 replicados de las mis-mas muestras en un mismo día se obtuvieron los siguientes
Lab #11: Respiratory Physiology Background The respiratory system enables the exchange of O2 and CO2 between the cells and the atmosphere, thus enabling the intake of
Download mempraktekkan teori yang diterimanya termasuk dalam melakukan Pemeriksaan .... kortikosteroid intra-artrikuler pada artritis, bolus sitostatika ke area tumor). ... Injeksi intravena : Obat diinjeksikan langsung ke dalam vena sehingga m
Lab 6 CST8214 Ian! D. ... Not all questions may be marked – check all your answers against the answer sheet when it is posted. 1. Give the range
Chromatography Lab activity — Worksheet 1 Chromatography Lab Worksheet Chromatography is a way to look at complex mixtures by separating them into their
Forensics: Ink Chromatography Lab 2015 Background: Chromatography is a method for analyzing mixtures by separating them into the chemicals from which they are made
St.MARTIN'S ENGINEERING COLLEGE English Lab Manual. A ... LAB. INDEX. I Functional English. II Vocabulary Building. III Reading Comprehension. IV Writing Skills. V Group Discussion. VI Presentation Skills. VII Interview Skills ... just answering "yes
INSTRUCTIONS: 1) Read about the life-cycles of average-sized and massive stars below. 2) Cut out the photos of the different objects and assemble them into a diagram of the life-cycle of the star. 3) Include temperature and brightness from the chart
Download Pemeriksaan EKG merupakan salah satu pemeriksaan penunjang untuk menegakkan diagnosis penyakit jantung. EKG juga memiliki keterbatasan antara lain adanya variasi normal pada beberapa populasi yang terkadang menimbulkan misdiagnosis, se
SEPARATION OF DYES BY PAPER CHROMATOGRAPHY LAB. Purpose: Like all chemicals, ... solution. 4. Paper chromatography—a method chemists use to separate one chemical from another using their differences in physical properties . Paper chromatography has s
Download Pemeriksaan EKG merupakan salah satu pemeriksaan penunjang untuk menegakkan diagnosis penyakit jantung. EKG juga memiliki keterbatasan antara lain adanya variasi normal pada beberapa populasi yang terkadang menimbulkan misdiagnosis, se
The purpose of this lab audit form is to allow lab personnel to do quick and easy self-audit of their labs. The checklist incorporates major components of lab safety
Honors Chemistry Lab - The Molar Mass of Butane Gas, C4H10
Name ________________________ Date _________________________
Purpose: To experimentally determine the molar mass of butane gas. Materials: Thermometer, Big Water Bucket, Funnel, Butane lighter, 50 mL or 100 mL graduated cylinder, Balance Safety: Goggles Procedure: 1. Mass the butane lighter. 2. Fill the bucket 2 inches from the top with water 3. Fill the graduated cylinder to the tippy tippy top 4. Place hand over the top of the graduated cylinder and invert into the bucket underneath the water. See picture below. The graduated cylinder should have no air once it has been inverted.
5. Place funnel underneath the graduated cylinder keeping the graduated cylinder underneath the water line. See picture below.
6. One person is to continue holding the graduated cylinder to keep it from falling. 7. Place thermometer in the bucket and allow the temperature to equalize for about 3 minutes. 8. Record the temperature of the water. 9. Place the butane lighter underneath the water and beneath the funnel. Light the lighter until 40-45 mL for 50 mL graduated cylinder or 90 –95 mL for 100 mL graduated cylinder of the water in the funnel is displaced.
1
10. Lift the graduated cylinder until the level of butane is level with the water level in the bucket. See picture.
11. Record the volume of butane in the graduated cylinder. 12. The instructor will provide the atmospheric pressure from the weather channel. 13. Determine the partial pressure of water using the temperature of the water and the chart for vapor pressure of water. 14. Shake out the butane lighter. Do NOT depress the plunger on the lighter or your results will be VERY flawed. Ensure that the lighter is completely dry before massing. 15. Pour the water down the drain and return all materials to proper locations. Data Table: Initial Mass of the Butane Lighter
21.77 grams
Temperature of the Water
21.0oC
Volume of Butane in the graduated cylinder
164 mL
Atmospheric Pressure
29.76 in Hg
Final Mass of the Butane Lighter
21.44 grams
Calculations 1. Determine the mass of butane in the graduated cylinder. Subtract the initial mass minus the final mass: 21.77 𝑔𝑟𝑎𝑚𝑠 − 21.44 𝑔𝑟𝑎𝑚𝑠 = 0.33 𝑔𝑟𝑎𝑚𝑠
2. Determine the atmospheric pressure in mm Hg. Convert in Hg to mm Hg 29.76 𝑖𝑛 𝐻𝑔 2.54 𝑐𝑚 𝐻𝑔 1 𝑚 𝐻𝑔 1000 𝑚𝑚 𝐻𝑔 𝑥 𝑥 𝑥 = 755. 𝟗04 𝑚𝑚 𝐻𝑔 1 1 𝑖𝑛 𝐻𝑔 100 𝑐𝑚 𝐻𝑔 1 𝑚 𝐻𝑔 Bolded number is the last significant figure – 4 significant figures
2
3. Determine the vapor pressure of water using the chart provided. 2.49 kPa – convert to mmHg
2.49 𝑘𝑃𝑎 760 𝑚𝑚𝐻𝑔 𝑥 = 18. 𝟔81145 𝑚𝑚𝐻𝑔 1 101.3 𝑘𝑃𝑎
Bolded number is the last significant figure – 4 significant figures 4. Determine the pressure of the dry butane in the graduated cylinder. Which gas law should you use? Use Dalton’s Law of Partial Pressures 𝑃!"#$% = 𝑃!"#$%& + 𝑃!"#$% !"#$% 𝑃!"!#$ = 755.904 𝑚𝑚 𝐻𝑔 𝑃!"#$% !"!"# = 18.681145 𝑚𝑚 𝐻𝑔 𝑃!"#$%& = 𝑃!"!#$ − 𝑃!"#$% !"#$% = 755.904 𝑚𝑚𝐻𝑔 − 18.681145 𝑚𝑚𝐻𝑔 = 737. 𝟐228 𝑚𝑚𝐻𝑔 Bolded number is the last significant figure – 4 significant figures 5. Determine the volume of the butane in the graduated cylinder. 164 mL – convert to Liters 164 𝑚𝐿 1 𝐿 𝑥 = 0.164 𝐿 1 1000 𝑚𝐿
Three significant figures
6. Determine the moles of butane using which gas law? Ideal Gas Law – PV = nRt P = 737.2228 mmHg (4 significant figures) V = 0.164 L (three significant figures) R = 62.4 L*mmHg/ mole*K (infinite signficicant figures) T = 21.0oC = 294.0K (4 signiciant figures) 𝑛 =
Bolded number is the last significant figure – 3 significant figures 7. Determine the molar mass, M = m/n. M = 0.33 grams (2 significant figures) N – 0.006590383 moles (3 significant figures) 𝑀=
