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Problem- Aluminum has a density of 2.70 g per cm3. If a sheet of aluminum foil measuring 20.5 cm in length and 15.2 cm in width has a mass of 1.693 g, what is the thickness of the foil in mm?
I need dexterous help to working out the above problem
the si unit of length is the meter which is defined as thelength equal to 1650763.73 wavelengths of the light emmitted
Describe clearly why a single indicator solution in only useful for measuring pH over a rather narrow range. Use a specific indicator of solution
calamine lotion contains a mixture of both zinc and iron oxides. a 1.022 g sample of dried calamine was dissolved in
evaporated the water from NaOH extracts prior to adding acid?
A nonmetal oxide dissolves in water to give an acid. Show this for gaseous carbon dioxide by writing a balanced chemical equation. (b) A metal oxide dissolves in water to give a base. Show this for solid potassium oxide by writing a balanced chemi..
The wavelength of light emitted if the electron drops from n=5 to n=4 will be shorter than the wavelength of light emitted when the electron falls from n=5 to n=3.
Question- Given that the molar mass of H3PO4 is 97.994 g/mol, determine the number of grams of H3PO4 needed to prepare 0.35 L of a 1.25 M H3PO4 solution
In any chemical reaction, the quantities that are preserved are what?
a a sample of solid caoh2 is stirred in waterat 30 degree c until the solution contains as much dissolvedcaoh2 as it
Calculate the Z for the fourth ionization of Ti when it requires 425.6 kJ of energy to ionize 0.185 moles of Ti^3+ to Ti^4+ ( The electron being removed is in the outermost valence orbital of Ti^3+ ground state, therefore n = 3)
Given that an atom of a semiconductor has a diameter of 3.33 , what is the maximum number of moles that fit in the channel of a processor chip that is 76.5 long, 74.1 , wide and 545 thick. Assume that the atoms stack in a simple cubic arrangement...
2.0 moles of a gas was collected in the lab at a temperature of 1.1 degrees C and a pressure of 9.5 atm. What volume will the gas occupy under these conditions.
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