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Two spacecraft fly away from Earth, traveling in exactly opposite directions. As measured by an observer on Earth, spacecraft A travels at a speed of 0.392c and spacecraft B travels at a speed of 0.909c. What is the speed of spacecraft B as measured by A? Express answer as a decimal fraction of c.
Which silver salt will precipitate first? Show calculations to support your answer. What is the concentration of Ag+ when the first precipitate begins to form?
More gas is then added to the container until it reaches a final volume of 13.3 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container.
The cuvette used had a 1.00 cm sample pathlength. The measured absorbance was 0.180. What was the concentration of hemoglobin in the solution. What would the absorbance of the previous solution be if the pathlength were 1.80 cm
How many mL of a 45.0%(m/v) solution of NaCl would you need in order to have 12.0g of NaCl? Molar mass of NaCl is 58.54g/molhow many mL of a 45.0%(m/v) solution of NaCl would you need in order to have 12.0g of NaCl
2 NO(g) +Cl2->2NOCL(g) the observed rate law is Rate= K(NO)^2(Cl2). What is the reaction order with respect to nitrohen monoxide with respect to Cl2? Wht id the overall order
How many grams of patassium chlorate decompose to potassium chloride and 524 mL of O_2 at 128C and 752 torr?
Approximately how many grams of KCl are there in 200 mL of a 4.0% by mass KCl aqueous solution? Assume that the density of solution equals that of pure water.
Write a balanced equation using the correct formulas and include conditions ( s, l, g, or aq) for each of the following reactions: a. Solid calcium carbonate decomposes to produce solid calcium oxide and carbon dioxide gas. b. Nitrogen oxide gas reac..
Use Poiseuille's equation to calculate the viscosity coefficient given the following variables:
Question- Write a reasonable and detailed mechanism for the dehydration of 4-methylcyclohexanol in the presence of sulfuric acid to form 4-methylcyclohexene. Use curved arrows to show the flow of electrons and draw the structures of all intermedia..
The decomposition of Phosphine, PH3(g), to P4 (g) and H2 is first order with rate constant of 1.1 min-1. How long will it take to decompose one fifth of the Phosphine
Formation of SO3 from the air pollutant SO2 is a key step in the formation of acid rain, according to the following reaction. Use standard enthalpies of formation from Appendix L to calculate the enthalpy change for the reaction.
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