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joann macdonald

joann m.

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For the reaction CO(g) + H$_2$O(l) → CO$_2$(g) + H$_2$(g) ΔH$^°$ = 2.8 kJ and ΔS$^°$ = 76.8 J/K The standard free energy change for the reaction of 1.88 moles of CO(g) at 335 K, 1 atm would be -22.92 kJ. This reaction is reactant favored under standard conditions at 335 K. Assume that ΔH$^°$ and ΔS$^°$ are independent of temperature.

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What happens to the limit of resolution when you increase to higher magnification

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What organelles store neurotransmitter molecules within the distal end of a motor neuron axon? motor end plate vesicles cisternae mitochondria synaptic vesicles

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Class Management Help Module 12 C Problem Set Begin Date: 3/20/2024 12:01:00 AM Due Date: 4/9/2024 10:00:00 PM End Date: 5/3/2024 11:59:00 PM Problem 8: Two pucks move on a frictionless air hockey table and collide with initial velocities as shown in the figure. The angles shown are measured from the horizontal (x-axis). The pucks stick together after the collision, and the combination moves in the positive y direction. The value of one mass and the initial velocities are shown in the figure below. The collision lasts 2.00 milliseconds. Part (a) What is the mass m2 in kg? m2 = 0.06320 kg Part (b) What is the final speed of the combined pucks after the collision in m/s? vf = 2.980 m/s Part (c) Calculate the magnitude of the average force acting on mass m1 during the collision. Give your answer in newtons. F1 = 94.45 N Part (d) Calculate the direction of the average force acting on m1 during the collision. Give your answer as an angle from the positive x-axis in degrees. θ1 = Grade Summary Deductions: 10% Potential: 90% Table: sin(), cos(), tan(), π, (, ), 7, 8, 9, номЕ, cotan(), asin(), acos(), E, uarr^(), ^(()), darr, 4, 5, 6, larr

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What is the role of decomposers in the nitrogen, carbon, and phosphorus cycle?

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58 The United States, one of the world's largest exporting nations, has bought more goods from other nations than it has sold since 1975. This is known as Multiple Choice a favorable balance of payments. a trade surplus. dumping. a trade deficit.

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Solve the exponential equation. Express the solution set in terms of natural logarithms. $e^{x+5} = 3$ $\{\ln 8\}$ $\{e^{15}\}$ $\{e^3 + 5\}$ $\{\ln 3 - 5\}$

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The weights lost by a random sample of 11 people have a mean of 6.4 pounds and a standard deviation of 5.1 pounds. Assume that the weights lost have a normal distribution. When calculating a 99% confidence interval for the true average weight lost, the lower and upper bounds would be?

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A survey team is trying to estimate the height of a mountain above a level plain. From one point on the plain, they observe that the angle of elevation to the top of the mountain is $25^\circ$. From a point 1000 feet closer to the mountain along the plain, they find that the angle of elevation is $27^\circ$. How high is the mountain in feet? Round your answer to 2 decimal places as needed.

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Nick Bachila and Associates has offices located in four cities: Melbourne, Geelong, Ringwood and Albury. An analysis of the business's accounts receivables reveals the number of overdue invoices by days, as shown here. Days Overdue Melbourne Geelong Ringwood Albury Total Under 30 days 137 122 198 287 744 30-60 days 85 46 76 109 316 61-90 days 33 27 55 48 163 Over 90 days 18 32 45 66 161 Total 273 227 374 510 1384 Assume the invoices are stored and managed from a central database. What is the probability that a randomly selected invoice from the database is from the Ringwood office? (Give you answer correctly to 2 decimal places)

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