Tag: Chemistry

hello I’v online CHEM class I’m looking for someone to take it for me for 250$ it’s 6 weeks and we are in 2end week now u have to do the experiment in the lab and to do discussions and hw and quiz every week.. can u contat me throw whatssap because I’v to explain to u every things there  

In your own words explain why the half reaction method and the oxidation number method gives you the same result when you balance a redox reaction.

Lab 1 Measurement: Accuracy and Precision Answer questions and show work

BIOCHEMISTRY SPECIALIST is awesome 

Please read the instructions on the attachments.

1 page summary 

Use pubs.acs.org or jbc.org or pubmed.gov

You can use a full paper or just a short paper/note

The name of the journal has to have biochemistry on it!!

Hey, thank you for the previous assignment.

i want you to do a new task for me.

It’s Chem 100″Principle of Chem”

4 Online  timed QUIZES 

Per Quize 1 hr 30 min 

Per Quize ” between 4-12 Questions”

I need an A and 100% 

Question.1: In this assignment you need to plot graphs on excel for below?

1. Linearity 

2. Accuracy 

3. Precision

4. Range

5. Specificity 

· All data or numbers required for graph and calculations are in attached excel file.

· You can check online and for above 5. And if needed please add Colum and rows in excel.

· For more information about (how do I get results )see below in reference section .

Linearity Testing Results

Work to be done: For triplicate readings (see attached excel sheet) from each operator at each standard ‘% NaCl’ concentration, plot a graph of the calculated potentiometer reading (y-axis) versus the corresponding standard NaCl solution concentration used (x-axis) in MS Excel and calculate the following from the graph:

– Correlation coefficient

– Slope of Regression Line

– Y-intercept

– Standard Deviation (SD)

– Relative Standard Deviation (RSD)

what volume of a 3.95M potassium chloride solution would be needed to make a 325 mL of a 2.67M solution by dilution chemistry

The freezing point of a 1 molar nonelectrolyte such as ethylene glycol is   .  What is the freezing point in degrees C of a 1.79 molar potassium chloride solution?

Calculate the osmolarity of a solution made from a 1.876 % (m / v) solution of KBr dissolved in water.