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E Heider
เข้าร่วมเมื่อ 9 ต.ค. 2011
True to the Faith piano solo
The text and music of this beautiful hymn were created by Evan Stephens, 1854-1930. Stephens was born in Wales and raised in Willard Utah. Inspired by the faith of his parents, Stephens nurtured a love of music and became Utah's first public school music supervisor. He is the author of 18 beautiful hymns.
This piano solo was arranged and performed by Emily Heider.
This piano solo was arranged and performed by Emily Heider.
มุมมอง: 281
วีดีโอ
Qualitative Analysis of Cations: A General Chemistry Experiment
มุมมอง 1.1Kปีที่แล้ว
This lab explores how the composition of a solution can be determined using solubility rules and the formation of colored compounds. By selectively precipitating salts one at a time from the solution, the presence of certain cations can be determined. For cations not readily precipitated, they will be complexed in solution resulting in color changes. We will be using a qualitative analysis sche...
The Rate and Order of a Chemical Reaction: General Chemistry Experiment
มุมมอง 3402 ปีที่แล้ว
Upon successful completion of this lesson, students will be able to: -Prepare solutions and conduct a reaction using the solutions. -Operate a spectrophotometer to measure absorbance at a given wavelength. -Determine the initial reaction rates. -Determine the order and the rate law expression for the reaction. -Demonstrate laboratory safety practices.
Using Freezing Point Depression to Determine Molecular Weight
มุมมอง 2.6K2 ปีที่แล้ว
Upon successful completion of this lesson, students will be able to: Determine the freezing points of a pure solvent and its solution. Calculate the freezing point depression of the solution. Determine the molar mass of the solute. Demonstrate laboratory safety practices.
Determination of Ethanol Heat of Vaporization
มุมมอง 8602 ปีที่แล้ว
Upon successful completion of this lesson, students will be able to: Quantify the pressure of a volatile liquid at different temperatures. Linearize and mathematically fit data based on the Clausius-Clayperson equation. Calculate the heat of vaporization and compare it with the known value. Demonstrate laboratory safety practices.
Exploring the Properties of Gases: General Chemistry Experiment
มุมมอง 1.2K2 ปีที่แล้ว
The purpose of this investigation is to conduct a series of experiments, each of which illustrates a different gas law. This video has four main parts: Part I Measurement of pressure, P, and volume, V (temperature and number of molecules constant). Part II Measurement of pressure, P, and absolute temperature, T (volume and number of molecules constant). Part III Measurement of volume, V, and ab...
Determination of an Equilibrium Constant
มุมมอง 452 ปีที่แล้ว
This general chemistry experiment shows how to determine the equilibrium constant for the reaction of iron (III) nitrate and potassium thiocyanate to produce iron thiocyanate. In completing this lab, students will: Quantify solution concentrations using absorbance and the Beer-Lambert Law. Construct calibration curves to determine unknown solution concentrations. Calculate the equilibrium const...
Rate Determination and Activation Energy general chemistry experiment
มุมมอง 1082 ปีที่แล้ว
In this experiment, you will ● React solutions of crystal violet and sodium hydroxide at four different temperatures. ● Measure and record the effect of temperature on the reaction rate and rate constant. ● Calculate the activation energy, Ea, for the reaction.
Paramagnetism and diamagnetism: a general chemistry experiment
มุมมอง 1K2 ปีที่แล้ว
-Learning outcomes: Students will apply knowledge of atomic orbital diagrams to interpret physical properties of substances. -Students will identify elements, ions, and covalent substances as para- or diamagnetic.
Separations and density: a general chemistry experiment
มุมมอง 1.9K2 ปีที่แล้ว
Learning outcomes: -Use physical changes including filtration and evaporation to determine the percent composition of sand, salt and iron in a mixture. -Measure the density of sand using the volume displacement method with water and a graduated cylinder.
Solution preparation and conductivity measurement: a general chemistry experiment.
มุมมอง 1.3K2 ปีที่แล้ว
Learning Outcomes: -Preparation a stock solution using volumetric flask and mass balance. -Prepare dilute standard solutions using a graduated pipette and volumetric flask. -Measure conductivity of standard salt solutions, tap water and Gatorade. -Construct a calibration curve to determine electrolyte concentration in tap water and Gatorade.
Determining the concentration of a solution with the Beer-Lambert Law: general chemistry experiment.
มุมมอง 5392 ปีที่แล้ว
Learning Outcomes: - prepare standard solutions. -use the dilution formula to calculate the concentration resulting from serial dilution. -use a colorimeter to measure the absorbance of copper sulfate standard and unknown. -determine the concentration of an unknown solution.
Determination of the enthalpy of a chemical reaction: a general chemistry experiment
มุมมอง 1.9K2 ปีที่แล้ว
Learning outcomes: -Use a coffee-cup calorimeter to measure the heat of the reaction for three acid-base reactions. -Apply Hess' Law to combine the reaction enthalpies of two of the reactions to determine the reaction enthalpy of the third.
Flame test and atomic emission spectra: a general chemistry experiment
มุมมอง 2.6K2 ปีที่แล้ว
Learning outcomes: -Students will demonstrate proper use of a Bunsen burner. -Students will record qualitative observations with the flame test. -Students will use the flame test to qualitatively identify an unknown. -Students will record the line spectra of helium, hydrogen and mercury discharge tubes. -Students will relate line spectra to electronic transitions.
NMR Chemical Shift Tensors: comparing the IUPAC and other metrics
มุมมอง 1214 ปีที่แล้ว
This lecture by Dr. James Harper describes a method for reporting chemical shift tensors to maximize information content in structural elucidation.
NMR Lecture: Quantum Mechanics of One Spin
มุมมอง 8695 ปีที่แล้ว
NMR Lecture: Quantum Mechanics of One Spin
Introduction to Excel: bar graphs and scatter plots
มุมมอง 2.6K5 ปีที่แล้ว
Introduction to Excel: bar graphs and scatter plots
Using Microsoft Excel's Solver function for spectral fitting
มุมมอง 7856 ปีที่แล้ว
Using Microsoft Excel's Solver function for spectral fitting
Calibration curves & LINEST function in Microsoft Excel
มุมมอง 3.3K6 ปีที่แล้ว
Calibration curves & LINEST function in Microsoft Excel
Comparing NMR Chemical Shift Tensors using the Icosahedron Representation
มุมมอง 3577 ปีที่แล้ว
Comparing NMR Chemical Shift Tensors using the Icosahedron Representation
Thanks to you I found the answers to many questions I was looking for...Thank you so much :)
I love this, Emily. Thank you for sharing your beautiful talent. ❤
Can you share the excel data? Thanks
This is so beautiful ❤️
Thank you!
Amazing!!!!! Please post more.
Absolutely beautiful! ❤
Thank you so much!
I love this!!! ❤
Thank you for listening!
Gen Chem II Moments (3)
Gen Chem II Moments (2)
loe bschem
thanks doctor for this experiment to upload it t's very helpful for me and please don't use music when u do it experiment please talk
Thanks for this video, it really helped, I noticed you had no comments here so I thought of being the first to leave a comment. Thanks this really helped, at least now I know what I'll write in my report 😅.
Gen Chem II Moments
omsimnida
Thank you this helped
Thank so much this is a life saver 😊
Can I use alcohol burner instead of bunsen burner?
What music do you use for your videos? Also, this was an excellent representation of a rudimentary experiment in chemistry class. 👍
Very informative and concise. 👍
Great
Thanks this is so helpful i was so lost but you made everything super easy thanks a bunch : )
Thanks. It really was helpful.
Thank you for this! Really helped!! - Katie S.