Numerade

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Many transition metal complexes form colored solutions and the concentration of the colored species is directly proportional to the absorbance of the solution. Concentration can therefore be determined by measuring absorbance, if the molar absorptivity of the absorbing species is known. The reaction of SnCl2(aq) with RhCl3(aq) in aqueous HCl yields a red solution of a 1∶1 Rh–Sn compound. If a solution prepared by adding 150 mL of a 0.272 mM aqueous solution of SnCl2 to 50 mL of an aqueous solution of 8.5 mg RhCl3 has an absorbance of 0.85, as measured in a 1.00 cm cell, what is the molar absorptivity of the red compound?

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Atleast try to give correct answer.. 68. Discuss the importance of safety standards in AC measurement instruments.

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nt Survey Question 19 Ignoring air resistance, the horizontal component of a projectile's velocity remains constant. continuously increases. continuously decreases. is zero. 2 pts

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Question 2 An example of an economic factor that influences buying decisions would be: O lifestyle. O hobbies. O inflation. O advertising.

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Why is there no mathematical solution with laws and a detailed solution?

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What total pressure (in atm) would be exerted by a mixture of 0.10 g of H2 gas (MM = 2 g/mol) and 0.89 g of O2 gas (MM = 32 g/mol) in a 250. mL container at 29.4 oC?

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The velocity of a particle moving along the x-axis is $v(t) = \frac{1}{\sqrt{t}}$. At $t = 4$, its position is 2. What is the position of the particle, $s(t)$, at any time $t$? Choose 1 answer: A) $s(t) = 2t^{\frac{1}{2}}$ B) $s(t) = 2t^{\frac{1}{2}} - 2$ C) $s(t) = \frac{2}{3}t^{\frac{3}{2}}$ D) $s(t) = \frac{2}{3}t^{\frac{3}{2}} - \frac{10}{3}$

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Find the solution of the differential equation that satisfies the given initial condition.\ $xy' + y = y^2$, $y(1) = -2$

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The overview of the study (purpose, subjects, measures) and what findings in Chen et al. (2019) paper support the statement "Research relying exclusively on OSS for assessing SES may underestimate the relationship between SES and 12-month mental disorders"? What are policy implications from this study?

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Question 9 All cell types have which of the following? (check all that apply) Membrane Bound Organelles Golgi Cytoskeleton Cell Wall Genetic Information (i.e. DNA, RNA) Mitochondria 1 pts

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