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The molar solubility of $A_2B_3$ is $3.4 \times 10^{-4}$ M at $62^\circ C$. What is the $\Delta G^\circ$ for the following reaction? $A_2B_3(s) \rightarrow 2A^{3+}(aq) + 3B^{2-}(aq)$ $A_2B_3 \rightarrow 2A + 3B = 3.4 \times 10^4$ mat is the $K_a$ for the following reaction at $25^\circ C$?

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What effects would increased circulating levels of cortisol have on the pituitary secretion of ACHT. .a .it would inhibit the release of CRH which would reduce secretion of ACHT. b. it would inhibit the release of CRH which would stimulate secretion of ACHT. c. it would stimulate the reease of CRH which would reduce secretion of ACHT. d. it would stimulate the release of crh which would stimulate secretion of ACTH

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Coase Corporation has 10,000,000 outstanding shares. There are 11 directors on the firm's board. The Becker family owns 2,300,000 shares of Coase Corporation How many directors can the Becker family be assured of electing by themselves if Coase Corporation uses majority voting? Multiple Choice Two Zero Three One

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Point charges of 5.20 µC and -3.80 µC are placed 0.270 m apart, with the -3.80 µC charge being placed to the right. If both charges are positive, where will the net force be zero for the third charge?

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Be sure to answer all parts. How many SO? molecules are in 2.84 mol of SO?? How many sulfur atoms and oxygen atoms there? a) 6.022\times 10^{23} SO? molecules Enter your answer in scientific notation. b) 6.022\times 10^{23} S atoms Enter your answer in scientific notation. c) 12.044\times 10^{23} O atoms Enter your answer in scientific notation.

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What is the Ksp expression for PbCl2 in water? Ksp = \frac{[Pb^{2+}][Cl^{-}]^{2}}{[PbCl_{2}]} Ksp = [Pb^{2+}][Cl^{-}]^{2} Ksp = [Pb^{2+}][Cl^{-}] Ksp = \frac{[Pb^{4+}][Cl^{-}]}{[PbCl_{2}][H_{2}O]}

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In the circuit below, assume $v_s(t) = 6 \cos(3t)$ V and $i_s(t) = 2 \sin(3t)$ A. Find the items requested and write the values in the boxes below. Write your answers for parts a-d as phasors of $\cos(3t)$. The answers you put in the boxes will be graded. Signs and units matter. Note: Recall that $\frac{d \sin(x)}{dx} = \cos(x)$ and $\frac{d \cos(x)}{dx} = -\sin(x)$ and $\sin(x) = \cos(x - 90°)$ a. 1 pt $\bar{V}_1 =$ b. 2 pt $\bar{I}_1 =$ c. 2 pts $\bar{V}_2 =$ d. 2 pts $\bar{I}_2 =$ e. 3 pts Coupling coefficient, k =

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Can or should we separate the economic from the cultural and vice versa? In other words, and using examples, are their times that you do something cultural that is not economic or economic that is not cultural.

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A hi-fi speaker is a cuboid measuring 15cm by 20cm by 30cm. Two of these speakers are packed into a box with internal measurements 40cm by 25cm by 40cm. Speakers 30 cm 20 cm 15 cm 40 cm 25 cm 40 cm The rest of the space inside the box is filled with polystyrene. Calculate the volume of polystyrene. (4 marks) cm³

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Work out the size of angle x. 42° 123°

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andrea n.