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An interference filter based on the first order interference is to be constructed. It is indicated that the filter will be used to isolate a band centered at 720 nm. Assuming a refractive index of 1.35 for the dielectric layer, what thickness would you recommend?
a copper refinery produces a copper ingot weighing 75 kg. the density of the copper is 8.94 gcm3. if the copper is
What happened when CaCO3 was combined with hydrochloric acid? was a chemical reaction obvious here ? what about NaOH added to HCl?
If the gas is compressed by a piston so that the final volume is 44.1% of the initial volume and the final pressure of the gas is 3.99 atm. What is the final temperature of the gas in kelvin. Enter your answer to the nearest degree.
By Solving this problem student understand about isotopic abundance and how to calculate atomic weight (average atomic mass) of an element -
Ethanol (C2H5OH) can be used as a combustible fuel. If ethanol has a density of 0.789 g/cm^3, what volume (in mL) of ethanol is needed to produce 24.1 L of carbon dioxide gas through complete combustion at a total pressure of 1.20 atm and 2210. K
The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray
Assuming a tank temperature of 16oC, what mass of oxygen is contained in the two tanks?
50.0 mL of 0.10 M HNO2 (Ka=4.5E-4) is added to 25.0 mL of 0.25 M KNO2 solution. What is the pH of the final solution
phosphorus is obtained primarily from ores containing calcium phosphate.if a particular ore contains 58.5 calcium
Anhydrite (CaSO4). Calculate the equivalent values for the bonds in anhydrite and comment on the differences between the two minerals.
If atom X forms a diatomic molecule with itself, the bond is A) ionic B) polar covalent C) nonpolar covalent D) polar coordinate covalent
write the structural formula of organic product that would result from the reactionch3-chch2
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