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some details needed to solve the quastion which is the in lab calculations
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some details needed to solve the quastion which is the
in lab calculations
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chemistry lab question: provide a thorough answer. address all of the needed. (4 pts) Which of...
chemistry lab question: provide a thorough answer. address all
of the needed.
(4 pts) Which of the following technique aspects do you expect to lead to the largest experimental error? Explain your choice and include a description of how the measured time could be altered. 9. Starting/stopping the timer Size of reagent drops Mixing the reagents Counting reagent drops
Which of the following statements concerning lab protocols is correct? Click the answer you think ls...
Which of the following statements concerning lab protocols is correct? Click the answer you think ls right. okay to modify the lab procedure If you have carefully read it first, and you have a way to do things more quickly It is fine to use your cell phone for calculations needed in the lab as long as you are wearing gloves. Food may be consumed in lab as long as the bench is wiped down and hands are washed. Make-up...
5. In this experiment, you made calculations beforehand to determine amounts needed in the procedure. Some...
5. In this experiment, you made calculations beforehand to determine amounts needed in the procedure. Some information was provided to help you make these calculations. Imagine that you are working in a laboratory and you need to find the concentration of an unknown sample of acetic acid, and you have no idea whatsoever what its concentration might be. What preliminary steps might you take to plan a titration that would accurately determine the concentration? (Consider: how might you decide what...
no calculations needed just discussion How well did titration work to find the percent by mass...
no calculations needed just discussion
How well did titration work to find the percent by mass of acetic acid in vinegar? What could you do to improve your results? Is there anything that you can think of that would improve the experiment? Discuss the percent error.
This is a two-part question. I need help with problem 3, but some of the details...
This is a two-part question. I need help with problem 3, but some of the details are included in problem 1, which will be needed to solve problem 3. PROBLEM 1 A company is going public at $16 and will use the ticker XYZ. The underwriters will charge a 7 percent spread. The company is issuing 20 million shares, and insiders will continue to hold an additional 40 million shares that will not be part of the !PO. The company...
Need help with 3 and 4 on calculations. some info is on top of the page...
Need help with 3 and 4 on calculations. some info is on top of
the page
Data Sheet for Lab #10 Name: Partner: Data/Observations: Volume of (NH), SO, used: Suomi initial pH of (NH4)2SO4 6.79 Equivalence vol. of NaOH: 20.00 pH at half-equivalence: 10,63 Balanced Chemical Equation: 1. Write the balanced equation for the reaction of ammonium sulfate and sodium hydroxide. (NH4)2SO4(s)? 2 N.0H(1) Nasa, () + 2NH3(-) + 2H2O 2. Write the balanced equation showing the ammonium ion acting...
Name: Lab Partner(s) Date: Question What would be the density of lab gas at STP (o C and i atm)? (Hints (You do NOT have to answer these questions in italics; they are only here to help you...
Name: Lab Partner(s) Date: Question What would be the density of lab gas at STP (o C and i atm)? (Hints (You do NOT have to answer these questions in italics; they are only here to help you answer the actual question.): There are TONS of different ways to approach this problem. If you were to bring your sample of lab gas to STP, what (from the ideal gas equation) would change? How would you expect this change to affect...
This is bromination of toluene lab, and the question asks how did the calculated moles of...
This is bromination of toluene lab, and the question asks how did the calculated moles of toluene correspond by mass and volume? if they are significantly different, which do you think is more accurate? moles of toluene from mass= 1.58*10^-3 moles of toluene from volume= 1.08*10-3 I'm not sure how to answer this question. Any help? experimental data: mass toluene from mass=0.146g mass of toluene from volume= 0.0996g volume of toluene used=0.115mL
no calculations needed just discussion How well did titration work to find the percent by mass of acetic acid in v...
no calculations needed just discussion
How well did titration work to find the percent by mass of acetic acid in vinegar? What could you do to improve your results? Is there anything that you can think of that would improve the experiment? Discuss the percent error.
I'm a might stuck on some calculations for my lab report on Spectrophotometric Determination of Protein....
I'm a might stuck on some calculations for my lab report on Spectrophotometric Determination of Protein. I'm looking to calculate the concentration of the first standard. Sample Vol. of Protein Std Solution Vol. of BCA reagent Volumeof DI water Total Vol. Vol of Unknown Blank 0 3.00 1.000 4.00 0 Standard 1 0.100 3.00 0.900 4.00 0 Standard 2 0.200 3.00 0.800 4.00 0 Standard 3 0.300 3.00 0.700 4.00 0 Standard 4 0.400 3.00 0.600 4.00 0 Standard 5...
chemistry lab question: provide a thorough answer. address all
of the needed.
(4 pts) Which of the following technique aspects do you expect to lead to the largest experimental error? Explain your choice and include a description of how the measured time could be altered. 9. Starting/stopping the timer Size of reagent drops Mixing the reagents Counting reagent drops
Which of the following statements concerning lab protocols is correct? Click the answer you think ls right. okay to modify the lab procedure If you have carefully read it first, and you have a way to do things more quickly It is fine to use your cell phone for calculations needed in the lab as long as you are wearing gloves. Food may be consumed in lab as long as the bench is wiped down and hands are washed. Make-up...
5. In this experiment, you made calculations beforehand to determine amounts needed in the procedure. Some information was provided to help you make these calculations. Imagine that you are working in a laboratory and you need to find the concentration of an unknown sample of acetic acid, and you have no idea whatsoever what its concentration might be. What preliminary steps might you take to plan a titration that would accurately determine the concentration? (Consider: how might you decide what...
no calculations needed just discussion
How well did titration work to find the percent by mass of acetic acid in vinegar? What could you do to improve your results? Is there anything that you can think of that would improve the experiment? Discuss the percent error.
Need help with 3 and 4 on calculations. some info is on top of
the page
Data Sheet for Lab #10 Name: Partner: Data/Observations: Volume of (NH), SO, used: Suomi initial pH of (NH4)2SO4 6.79 Equivalence vol. of NaOH: 20.00 pH at half-equivalence: 10,63 Balanced Chemical Equation: 1. Write the balanced equation for the reaction of ammonium sulfate and sodium hydroxide. (NH4)2SO4(s)? 2 N.0H(1) Nasa, () + 2NH3(-) + 2H2O 2. Write the balanced equation showing the ammonium ion acting...
Name: Lab Partner(s) Date: Question What would be the density of lab gas at STP (o C and i atm)? (Hints (You do NOT have to answer these questions in italics; they are only here to help you answer the actual question.): There are TONS of different ways to approach this problem. If you were to bring your sample of lab gas to STP, what (from the ideal gas equation) would change? How would you expect this change to affect...
no calculations needed just discussion
How well did titration work to find the percent by mass of acetic acid in vinegar? What could you do to improve your results? Is there anything that you can think of that would improve the experiment? Discuss the percent error.
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