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A sample of ammonia (NH3) gas is entirely decomposed to nitrogen and hydrogen gases over heated iron wool. If the total pressure is 826 mmHg, Compute the partial pressures of N2 and H2.
A hypothetical Fresnium (Fn) is placed in a solution of 1 M fresnium nitrate, and a standard copper reference electrode is also placed in the solution.
The diameter of a rubidium atom is 4.95A . We will consider two different ways of placing the atoms on a surface. In arrangement (a), all the atoms are lined up with one another.
Calculate the energy in joules and calories lost when 10.0 gm ethanol, {C_2H_5OH}, cools from 62.5 0C to -46.0 0C?
The solubility of cerium sulfate, Ce2(SO4)3, in water is 0.34 g per 100 mL at 100 °C and 14.2 g per 100 mL at 10 °C. Is the dissolving of cerium sulfate in water an endothermic or exothermic process
Write a balanced equation for the yeast using glucose to produce energy, etanol and carbon dioxide.
Observe significant figure rules. Constants: ideal gas const = R = 0.08206 L atm/mole K; 1 mole of gas at STP occupies 22.41 L. Atomic masses: H 1.008 O 16.000 g/mole. You must show work to identify the limiting reagent; no credit for guessing.
How does electron configuration work. If I have [Ar]3d^5 as an example how do know what it actually equals
Comparing potassium nitrate (KNO3) and sodium chloride (NaCl), which chemical's solubility (in water) is most affected by change in temperature.
lab handout - the chemistry of winemaking the biosynthesis of ethanol.1. by using yeast can glucose and fructose be
the molecular weight of glycine is 75.07gmol and 155.15gmol for histidine. you want to purify each from a solution that
Adding ammonia to a solution containing copper ions... Answer can be multiple removes the copper from the solution by forming a precipitate. increases the copper concentration by shifting the reaction toward the reactants.
The enthapy change for this recation is 3.10 x 10^2 kJ/mol. Assuming that all this energy must be supplied by light, what is the maximum wavelength of light that can cause this reaction?
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