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Which of the following are chemical processes?I) rusting of a nailII) freezing of water III) decomposition of water into hydrogen and oxygen gasesIV) compression of oxygen gas
A beaker contains 115g of ethanol at 18.2 degrees C. Explain if the ethanol absorbs 1125J of heat without losing heat to the surroundings, explain what will be the final temperature of the ethanol? The specific heat of ethanol is 2.46J/g*degrees C..
The heat of vaporization of water at this temperature is 574 cal/g. We normally do not sweat this much. Explain what is wrong with this calculation?
Why does absorbance vs concentration calibration curve need not pass through origin (0,0) looking at beer lambert law?
The tmeperature s increased to 1200 K, so that all CaC204 decomposes to form CaO according to the reactions, The density of the gas mixture at 1200K was 0.70501 g/L. What was the mass of the calcium oxalate initially placed in the vessl?
A particular element M has a heat capacity of 0.36 JgK and it forms an oxide that contains 2.9 grams of M per gram of oxygen What is the molar mass of the metal
A certain rifle bullet has a mass of 9.81 g. Calculate the de Broglie wavelength of the bullet traveling at 1433 miles per hour.
write a detailed mechanism for the reaction of salicylic acid with acetic anhydride showing clearly the function of the catalyst,
The sodium hydroxide solution was prepared by dissolving 10.00 g of solid NaOH in sufficient water to form 200.00 mL of solution. If the equivalence point was reached after the addition of 23.50 mL of the NaOH solution, what is the molarity of HNO..
A solution was prepared by dissolving 0.450 g MgSO4 (FW=120.363g/mol) in 0.500L of water. A 50.0 mL aliquot of this solution consumed 37.60 mL of EDTA solution in a titration.
An ideal gas enters a valve at 500K and 3MPa at a steady state rate of 3 mol/min it is throttled to 0.5 MPa. What is the rate of entropy genration. Is the process reversible.
Explain would silver chloride which is 5.56g/cm3if it was placed on top of the ozone or in the lower mesoshpere/upper stratosphere would it stay up in the atmosphere or fall back down to earth
at the top of a building the barometric pressure reads 730 mm hg at the bottom of the building the barometric pressure
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