Explain use method of least squares to find uncertainties

Reference no: EM13273370

Quantity C2H2 in gas mix measured by mass spec,in which signal for mass number 26 is proportional to volume % C2H2.

Gas Signal (mV)
Blank containing no C2H2 0.2
Unknown 10.8
Unknown + 0.072 vol % C2H2 17.1
Unknown + 0.121 vol % C2H2 20.2
Unknowsn + 0.200 vol % C2H2 30.0
Unknown + 0.364 vol % C2H2 44.6

a) Subtract blank value (0.2 mV) from each measured signal. Make graph to find volume % of C2H2 in unknown

b) Use method of least squares to find uncertainties in slope & intercept of your graph & estimate the uncertainty in answer to a.

Reference no: EM13273370

Questions Cloud

Define what is the percentage contribution to alkalinity : For a solution having 1.00 x 10^-3 equivalents/L total alkalinity (contributions from HCO3-, CO32- and OH-) at [H+] = 4.69 x 10^-11, what is the percentage contribution to alkalinity from CO32-

Coach porter paper synthesis and application : Analyze the assigned company and prepare a five forces analysis specific to the assigned company and industry.

Patient is in severe pain and is allergic to morphine : Your patient is in severe pain and is allergic to Morphine. You receive an order for hydromorphone 3mg intravenous push (IVP). Review and study the dosage conversion chart on page 149 in your textbook

How many revolutions does the wheel make in this time : A wheel with a radius of 0.25 m rolls without slipping on a level road at a constant speed of 1.1 m/s for 2.0 min

Explain use method of least squares to find uncertainties : a) Subtract blank value (0.2 mV) from each measured signal. Make graph to find volume % of C2H2 in unknown b) Use method of least squares to find uncertainties in slope & intercept of your graph & estimate the uncertainty in answer to a.

Corporate social responsibility policy : Research, individually, a corporate social responsibility (CSR) policy at a large organization. Prepare to discuss the benefits and disadvantages of the policy with your team. Imagine your team represents the executive committee at an imaginary organ..

Find the smallest radius of curvature acceptable for track : A train has a speed of v = 66.5 km/h. If the acceleration experienced by the passengers is to be less than 0.35 g, find the smallest radius of curvature R acceptable for the track

Explain what is the molarity of potassium chloride : The density of ocean water at a depth of 10,000 m is 1.071 g/mol and if 27 g of water at that depth contains 185 mg of potassium chloride, what is the molarity of potassium chloride in the sample

What sales volume would be required in order to meet : What sales volume would be required in order to meet this profit goal?

User Account

All Pages