Hydrogen gas is collected over water at 21 degrees c and an
hydrogen gas is collected over water at 21 degrees C and an atmospheric pressure of 748 mm Hg. what is the partial pressure of hydrogen gas in the mixture
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An air-filled parallel plate capacitor with a plate spacing of 1.20 cm has a capacitance of 4.30, Calculate the dielectric constant of the inserted material
Suppose that in the beginning of the year, the exchange rate between US-dollar and the euro is exactly 2 $/EURO. At that time, a one-year US treasury bill yield an interest rate of 5%, while a similar German treasury bill yield 3%.
What each test reveals about an unknown halide ion? Suggest another test which would confirm that identity. Addition of Cl2 and CH2Cl2 to an aqueous solution of an unknown halide ion led to a dark CH2Cl2 layer.
When a clock reads 3 s, a cart's velocity in the positive x direction reads 5m/s, What is the magnitude in m/s^2 of the acceleration of the cart
How did the bubonic plague spread? What were the symptoms of the disease? Why did the disease spread so easily during the middle ages?
Assume that an inexpensive watch runs 0.004% slower than a "perfect watch" (viz., a "time standard") that neither loses nor gains time, what would the perfect watch measure for this time interval
starting with 1.342 g Zn and excess HCL, the volume of H2 gas collected was 472 mL. the atmospheric pressure was 754 mmHg and the temperature was 21 degrees C. write a balanced equation and calculate the moles of h2 produced by the reaction.
(Comparative Advantage) Suppose that each U.S. worker can produce 8 units of food or 2 units of clothing daily. In Izodia, which has the same number of workers, each worker can produce 7 units of food or 1 unit of clothing daily.
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