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1. An air flow with a Mach number of 2.0 passes through an oblique shock wave inclined at an angle of 45° . Find the flow deflection angle α.
2. An air flow with a Mach number of 8 is deflected by a wedge through an angle α. What is the maximum value of α for an attached oblique shock?
Determine the mass of copper that would release 438 J of heat while cooling from 284 degrees C to 25 degrees C
Explain what is the pH of a solution prepared by dissolving 4.1g of HCL in water to make 455mL of HCL solution
A 0.7549g sample of a pure hydrocarbon burns in oxygen gas to produce 1.9061g of carbon dioxide and 0.3370g of water.
The zinc content of a 1.23 g ore sample was determined by dissolving the ore in HCl, which reacts with the zinc, and then neutralizing excess HCl with NaOH. Zn+2HCl-->ZnCl2+H2
Net ionic equations to describe the formation of precipitate when alum is added to a barium hydroxide solution
Write the molecular equation, total ionic equation, and net ionic equation for the combination of Cu(NO3)2 and NaOH solution.
Assume a compound with the formula C3H6O produces a silver mirror upon addition of the Tollen's reagent. Explain what is the structure of this compound
A pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 8 g of coffee beans?
What is the pH of a solution of 0.050M formic acid(HCO2H, Ka=1.8*10^-4) and 0.035M sodium formate
The absorbance of solutions containing Cr as dichromate Cr2O7-2 in 1.0M H2SO4 were measured in a 5cm cell. The following results were obtained
Question- A solution contains 5.37E-3 M chromium (III) acetate and 9.00E-3 M lead nitrate. Solid sodium hydroxide is added slowly to this mixture. What is the formula of the substance that precipitates first
magnesium reacts with ironiii chloride to form magnesium chloride and iron.3mgs 2fecl3s gt 3mgcl2s 2fesa mixture of
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