Numerade

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Question 2 1 pts 0.6 moles of an ideal gas with $C_{v,m} = 3R/2$, initially confined to a container of volume 3 litre and at a temperature 23 °C, expand (or are compressed) against a constant external pressure of 1.2 atm until the final pressure of the gas is equal to the external pressure and the final temperature of the gas is equal to the temperature of the surroundings. During this process the system does 2,070 J of work on the surroundings. Calculate the change in entropy, $\Delta S$, of the gas (in J / K). Question 3 The process in the previous question is reversible spontaneous impossible 1 pts

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Maya was asked to work out the value of 335-:[19+6(16-8)]. Her working is shown below, but her answer was incorrect. On which line did she make her first mistake? 335-:[19+6(16-8)]=335-:[19+6(8)] =335-:[19+48] =335-:[67] =4 Line 1 Line 2 Line 3 Line 4

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rrors of ____________ occur whenthe participant makes a premature judgment about a stimulus and gives a false-positive response (a response is given even though no stimulus is presented).

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The major contribution of Anton van Leewenhoek in the development of microbiology is to challenge the theory of spontaneous generation. the invention of microscope. the invention of sterilization. to perfect germ theory of disease.

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Briefly, what bacterial growth did you expect on each of your 4 plates and why? pglo lab

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Question (Sufficient statistic $ \left[5\right. $ marks ]). Assume $ X_{1}, \cdots, X_{n} $ is a random sample from a uniform distribution on the interval $ [0, \theta] $, where $ \theta $ is the unknown parameter. Show that $ \max \left(X_{1}, \cdots, X_{n}\right) $ is a sufficient statistic for $ \theta $.

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Part C 0.180 M in HCHO2 ($K_a = 1.8 \times 10^{-4}$) and 0.230 M in HC2H3O2 ($K_a = 1.8 \times 10^{-5}$) Express your answer to two decimal places. pH = 2.09 Submit Previous Answers Request Answer Incorrect; Try Again; 3 attempts remaining Part D 5.00$\times$10$^{-2}$ M in acetic acid ($K_a = 1.8 \times 10^{-5}$) and 5.00$\times$10$^{-2}$ M in hydrocyanic acid ($K_a = 4.9 \times 10^{-10}$) Express your answer to two decimal places. pH = Submit Request Answer Provide Feedback

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If the gall bladder was surgically removed from the body, what problems would you expect to observe?

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QUESTION 9 A ____ bond is formed through the equal sharing of electrons.

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LABORATORY 6: SOLUTIONS AND A PRECIPITATION REACTION THE EXPERIMENTAL SECTION (CONT'D) C. Given that you will use all of the Na2CO3 solution that you have prepared, which reactant is limiting? Which is used in excess? Limiting reactant: Ca Clz Na2CO3 Reactant Show your calculation here. CaCl ₂ .470 V= 20 ML 2 ml is used in a 0 4. OBSERVATION UPON MIXING THE REACTANTS 0.0069 x DATA AND RESULTS 5A. Mass of filtered paper B. Mass of filtered paper plus dried product C. Mass of product D. Moles of product (show calc. below) 44 2 40 mL _X (fold) molar excess 0.320 0.326 0.006 6. Calculate the theoretical yield, both moles and grams, of your product. Show your calculations below. 6. Calculate your percent yield. Show your calculation below. g .g _g g moles .g %

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jennifer h.