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Oil (density 0.91 g/cm^3) flows in a pipe (see fig.) and the flow rate is measured via a mercury manometer (density of Hg=13.546 g/cm^3). If the difference in height between the two legs of the manometer is 0.78 in., what is the corresponding pressure difference between points A and B, in mmHg. At which point (A or B) is the pressure higher, and why? The temperature is 60 °F throughout
A 43 kg person drinks 450. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 17% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake.
A packed tower is used to purify a gas containing 4 mole % of H2S. The total inlet gas flow to the tower is 75 kmol/h and the total inlet pure solvent flow to be used to absorb the H2S is 95 kmol /h.
Write down the second period elements (ie. lithium through neon), on order of increasing first ionization energy and Write the electron configuration for a gallium atom.
A 29.20 g piece of iron and a 25.30 g piece of gold at 100.0 degree C were dropped into 980.0 mL of water at 15.65 degree C. The molar heat capcities of iron and gold are 25.19 J/(mol degree C) and 25.41 J/(mol degree C), respectively.
If 18.2 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia.
Each of the following names is an incorrect IUPAC name. Indicate, if possible, the correct name of the compound. can you please explain why these names are not right
What volume of 2.811 M oxalic acid solution is needed to react to the equivalence point with a 5.090 g sample of material that is 92.10% NaOH
An unknown compound has the empirical formula CH2. A 0.050-mol sample of this compound weighs 4.20 g. What is the molecular formula of this compound?
Explain the chemical process that occurred in his muscle cells to cause this discomfort. Explain the chemical reaction that has taken place in the body after exercise.
When 24 copper pennies are submerged in water, the pennies displace 8.26 cm3 of water. If the combined mass of the pennies is 73.86 g, what is the density of copper?
An aqueous solution is made by dissolving 25.8 grams of magnesium nitrate in 395 grams of water. What is the molality of magnesium nitrate.
A cook wants to heat 1.35 of water from 32.0 to 100.0 .If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn.
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