What is the molar mass of a gas which has a density
What is the molar mass of a gas which has a density of 1.16g.L-1. at STP ? If this gas is a hydrocarbon with 92.2%carbon by mass, what is the molecular formula of the gas ?
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Methylamine CH3NH2, has a base dissociation constant of 3.7 x10-4. What is the conjugate acid of methlamine and what is its acid dissociation constant?
A 3 cm thick stainless steel (thermal diffusivity 0.0000044, k=16.3) initially at 500°C. Calculate the time for the center temperature reaches 120°C.
Does refining/isolation of nitrogen from liquid air usingfractional distillation cause any pollution or any environmental problems?
The truck has a constant acceleration of 2.01m/s2, and the automobile an acceleration of 3.47m/s2. The automobile overtakes the truck after the truck has moved a distance of 45.0m (1) How much time does it take the automobile to overtake the truck?
You drive on Interstate 10 from San Antonio to Houston, half the time at 58 km/h and the other half at 99 km/h. On the way back you travel half the distance at 58 km/h and the other half at 99 km/h. What is your average speed from Houston back to
Barium is reactive with water. In fact, all metals in this group are quite reactive with water. Can you names some other ones in order of their reactivity with water?
Compare the efficiency and peak pressure of the cycle with the efficiency and peak pressure that would be obtained if all of the fuel were burnt at constant pressure or at constant volume.
Find the x and y components and the magnitude and direction of the electric field at x = 0 m, y= 0.240 m.
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Problem: A highly resistant antibiotic strain of S. aureus would reproduce BEST in: the presence or absence of antibiotic.
Question: Which of the following eukaryotic microorganisms is always multicellular?
The feature you choose must be geology-based so you can explain the geology behind the feature (do not choose non-geology,
Which lobes of the brain is Katie currently using to recognize her father's face?
A group of field biologists are studying butterflies around a local pond to estimate population size. On the first day, they capture 500 butterflies,
A small population of white-footed mice has the same intrinsic per-capita rate of increase (r) as another large population.
What is the most likely mode of inheritance for the genetic condition in this family? Question options