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The water used for irrigation is measured in acre-feet in the United States. An acre-foot of water covers an acre to a depth of exactly 1 ft. An acre is 4840 yd2.
Determine the cell potential, E, for a voltaic cell composed of one compartment containing a Pb(s) electrode immersed in 1.0MPb2+(aq), and a second compartment having a Pt(s)electrode immersed in the
Determine the pressure of two moles of H2 gas using perfect gas law and then the van der Waals equation for a system with having 1.0dm^3 volume at 25 C.
A balloon of Xe gas through the research having a mass of 262g in a 1.0 dm3 volume exerts pressure having 40.1at m at 25 deg. calicos. Why does Xenon behave like a perfect gas?
Determine the number of grams of Potassium Hydrogen Phthalate, KHP, are necessary to make the 500 mL of 0.48 M KHP? Where the formula weight= 204.23
Explain the name of the major organic product which is taken from the reaction between the1-phenyl-1-ethanol and it concentrated the sulfuric acid when excited.
Discuss the list and the four most significant that control the relative reactivity of a carbonyl functional group in an addition or a substitution reaction.
Analyze the volume of propylene glycol, in gallons, required to produce the same antifreeze protection as 3.00 gallons of ethylene glycol.
An element having the sample of a 2.077 g, which has an atomic mass among 40 and 55, reacts with oxygen to form 3.708 g of an oxide. Calculate the formula of the oxide (and identify the element).
Determine the molality in the mol/ kg using the formula ΔT= Kf the KF VALUE for lauric acid is 3.9i did that and they got molality and Δt/kf = 1.9 mole kg
The sample of Tap Water consists of water, calcium ions, fluoride ions and the several other dissolved ions. The ions are squarely distributed throughout the water. Explain which term could be used
Calculate the volume at 80°C if the balloon measures the 1.25 L at the room temperature. A balloon having the sample of the helium gas which is warned in an oven.
What is the density if an unknown solid weighs the 84.0 grams and occupies the 30.0cm3 of space? Determine the mass of a liquid which is having the volume of 3.5 liters and a density of 1.50 g/ml
Determine the number of milliliters of the stock solution which is taken for the dilution and it is desired to prepare the 0.500 L of a 0.100 M solution of NaCl from a 1.00 M stock solution.
Obtain the relation among the Dietetic equation and the critical constants parameters. Which is show that Zc=2e-2 and derive the concentrated form of the Dietetic equation of state.
The Argon will sit in the bottom of your suffocate and lungs you if you breathe it. It implies that the Ar is denser than air. When the Ar gas has a 10% lesser volume than it would if it were a perf
The three students were asked to calculate the identity of the metal in a particular sulfate salt. They dissolved sample of salt of 0.1472 g in the water and treated it with excess barium chloride,
NiO (Nickel oxide) crystallizes in the NaCl type of crystal structure. The length of the unit cell of NiO is 4.18 Å. Determine the density of NiO.
Determine the composition of the brass by mass? Explain how could this result be checked without changing above practice?
The most prominent line of aluminum in the line spectrum is found at 396.15nm. Determine the frequency of this line? Describe is the energy of one photon? Calculate the energy per mol?
Analyze the ratio of the dynamic viscosity of water to air at a temperature of 60 degrees. Evaluate this value with corresponding ratio of kinematic viscosities. Suppose the air is at STP.
Determine the numbers of grams of magnesium nitrate are needed to produce 250.0 mL of a 0.0750 M solution. Determine the numbers of grams of a 7.0% by weight NaCl solution are essential to yield 4.6 g
Analyze the freezing point of a 20.0 % (m/m) ethylene glycol. C2H6O2 SOLUTION In water. The ethylene glycol is a non-electrolyte and the Kf(H2O) is -1.86 degree C molal.
Ethanol has a melting point of -117.3 Celsius on the Celsius scale and the boiling point of 78.5 Celsius, but on your new scale calibrated in units degrees ethanol, E, you define ethanol to and melt
Determine the standard cell potential for the above hydrogen or silver cell.Determine the pH if the cell potential is 1.00V and all the other components are at standard conditions.