Perform a t-test comparing COMP250 to COMP100 and COMP250 to COMP20. A p value when p<0.05 is statistically significant and p value when p>0.05 is not significant. Include all p values and comment on their significance.
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Perform a t-test comparing COMP250 to COMP100 and COMP250 to COMP20. A p value when p<0.05 is statistically significant and p value when p>0.05 is not significant. Include all p values and comment on their significance.
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- I asked this question earlier but I think I forgot to include a conversion wht we know : mm of citrix acid = 192.14g/moldensity of citrix acid =166g/cm3 1 lime = 2tbsp of juice = 6 tsp 1tsp = 4.929x10-3L Q: assume citrix acid makes up 7.96% by volume of the lime juice . How many moles of citrix acid are in the recipe ( calls for 1 lime juice)Given the following solutions: Solutions Flask 1 Flask 2 Flask 3 0.06 M KI 20.0 mL 20.0 mL 10.0 mL 1% starch 5.00mL 5.00mL 5.00mL 0.02 M Na2S2O3 3.50 mL 3.50 mL 3.50 mL 0.08 M H2SO4 5.00 mL 5.00mL 5.00mL 0.05 M NaCl 0 0 10.0 mL and Solutions Beaker 1 Beaker 2 Beaker 3 0.06 M H2O2 20.0 mL 10.0 mL 20.0 mL deioinized water 0 10.0 mL 0 Following the procedure Run 1 is when Beaker 1 is added to Flask 1 and the timer is started giving the time recorded for the run in the table below. This is repeated with Beaker 2 and Flask 2 for Run 2 and finally Beaker 3 and Flask 3 for Run 3: The results for these runs are given below: Run Time (seconds) 1 20 2 38 3 44 Calculate the following for each run: the initial molarities of I- and H2O2 (from the solutions tables ) the rates of reaction [I2]/time (calculate the [I2] from [S2O32-] and using the reaction: I2(aq) + 2 S2O32-(aq) → 2I-(aq) + S4O62-(aq) Choose the correct rate law for this reaction from your…Given the following: Solutions Flask 1 Flask 2 Flask 3 0.04 M KI 25.0 mL 25.0 mL 12.5 mL 1% starch 5.00mL 5.00mL 5.00mL 0.03 M Na2S2O3 5.50 mL 5.50 mL 5.50 mL 0.05 M H2SO4 5.00 mL 5.00mL 5.00mL 0.08 M NaCl 0 0 10.0 mL and Solutions Beaker 1 Beaker 2 Beaker 3 0.04 M H2O2 25.0 mL 12.5 mL 25.0 mL deioinized water 0 12.5 mL 0 Following the procedure Run 1 is when Beaker 1 is added to Flask 1 and the timer is started giving the time recorded for the run in the table below. This is repeated with Beaker 2 and Flask 2 for Run 2 and finally Beaker 3 and Flask 3 for Run 3: The results for these runs are given below: Run Time (seconds) 1 35 2 66 3 72 Calculate the following for each run: the initial molarities of I- and H2O2 (from the solutions tables) the rates of reaction [I2]/time (calculate the [I2] from [S2O32-] and the reaction: I2(aq) + 2 S2O32-(aq) → 2I-(aq) + S4O62-(aq) Choose the correct rate law for this reaction from your calculations.…
- Consider a 1.000-L stock solution of 9.69 M Na3PO4. A 2.000-mL aliquot is taken from this stock solution and diluted to a final volume of 1.000 L. A 5.000-mL aliquot is then taken from this new solution and further diluted to make a new solution with a final volume of 750.0 mL. Calculate Na+ in the final solution.The maximum dose over 24 hours for OTC (over the counter use) of acetaminophen (medication in Tyleonol) is 4,000 mg. Many OTC and prescription medications contain acetaminophen along with other ingredients. Acetaminophen can be found in many cold medicines and in prescription painkillers such as Norco, which also contains the addictive opiod hydrocodone. Keeping track of sources and amount of acetaminophen is very important for your health. Abuse of Norco due to the opiod can also lead to toxic/lethal doses of acetaminophen. There are now strict regulations on the number of tablets of Norco that can be prescribed (7 day maximum per prescription, not refillable without another prescription). A tablet of Norco contains 325 mg of acetaminophen. Thirty tablets are in a week-long prescription post major-surgery to aid in recovery. How many grams of acetaminophen are in the 30 tablets?Concentration of AR Stock Solution (ppmppm) 21.22 Unrounded Rounded Concentration of AR Stock Solution (μMμM) 42.7461 42.7
- Oceanic uptake of carbon dioxide is thus described:CO2 (g) + H2O ⇔ H2CO3, K = [H2CO3]/PCO2 = 3 x 10-2 M atm-1 H2CO3 ⇔ HCO3- + H+, K = [HCO3-][H+]/[H2CO3] = 9 x 10-7 moles/LHCO3- ⇔ CO32 - + H+, K = [CO32 -][H+]/[HCO3-] = 7 x 10-10 moles/LCharge balance equation:[H+] = [OH-] + [HCO3-] + 2[CO32 ] If the CO2 concentration in the atmosphere is 300 ppm, what is the pH of the ocean?Seconds(s) Tap H2OTemp (°C) Salt Solution(+ 2.5 mL salt)Temp (°C) Salt Solution(+ 5 mL salt)Temp (°C) 30 9 7 0 60 4 4 -1 90 3 2 -2 120 2 1 -2 150 1 1 -2 180 1 1 -2 210 1 1 -2 240 1 1 -2 270 1 1 -2 300 1 1 -2 330 1 1 -2 360 1 1 -2 390 1 1 -2 420 1 1 -3 450 1 1 -3 480 1 1 -3 510 1 1 -3 540 1 1 -3 570 1 1 -3 600 1 1 -3 Attach three (virtual) graphs. On one graph, plot the data from the tap water. On the other two graphs, plot the data from the salt solutions. Clearly label the freezing point on each graph.Calculate the Constant Weight (in grams) of the Empty Crucibles. Show your solution. Crucible No. 1 2 3 Weighing 1 22.6035 22.0223 24.1535 Weighing 2 22.6017 22.0204 24.1533 Weighing 3 22.5994 22.0199 - Weighing 4 22.5992 - - Constant Weight, g ??? ??? ???
- Complete the table below and show the complete solution. a. 6.0024 b. 1.0011L c. 0.0021L d. 4.0023L V1 T1 V2 T2 0.0024L 22C -14CStock iron(II) solution (200Ug mL-1 Fe) ferrous ammonium sulfate hexahydrate mass= 0.1437g, transfer it to a 100 ml beaker. add 15 ml approx of water and 15m1 'approx of dilute sulphuric acid (2M H2SO.). then transfer FeII to 100 ml flask makeup to the mark with water. calculate the moles of ferrous ammonium sulfate hexahydrate solution in unit ug/mL.A student used 10 mL water instead of 30 mL for extraction of salt from mixture. How may this may this change the percentage of NaCI extractecd?