Determine how many moles of nitrogen do you require
Nitrogen gas reacts with oxygen gas to form the dinitrogen trioxide. Given 5moles oxygen determine how many moles of nitrogen do you require?
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Assuming the complete dissociation of HCl and the lead salt, determine how much HCl is to be added to a 0.001 M lead salt solution to just prevent precipitation when saturated with the H2S.
A sodium lamp employed to calibrate a diffraction grating exhibits the first-order sodium line at 24.3 from the central maximum. i) Determine the angular position of the first spectral line in hydrogen of 434 nm.
Find out the H+ ion concentration of the resulting solution. 2.05 g of sodium acetate was added to 100 mL of a 0.1 M HCl solution. If 6 mL of a 1 M HCl is further added to it, explain what will be the new H+ concentration?
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A laser beam of 8.6mW consists of its electric field vertical. When it passes via a polarizer with its transmission axis at 45 to the vertical, find out the power of the transmitted beam?
Cement used in mortar & the making of concrete uses a monohydrate of CaO (often called the quicklime).Discuss what volume of water is needed to hydrate a standard 20 kg bag of quicklime?
If vendor charges 12.5%, compounded semi-annually, and mortgage is to be repaid over 20 years, determine required monthly payment.
When all the air molecules in the room settled down in a thin film on the floor, would that violate the conservation of momentum and also conservation of energy?
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