What quantity, in moles, of hydrogen is consumed when 76.8 kJ of energy is evolved from the combustion of a mixture of H2(g) and O2(g)? H2(g) + O2(g) = 2H2O(l) dH = 571.6 kJ a) 2.368 mol b) 1.184 mol ...
Is sodium chloride classified as an element, a compound, or a mixture? Explain. Explain how the formulas for H_2O and NaCl provide different information about the composition of these two compounds. If some table salt, NaCl, gets wet, is it now a hydrate? Explain your answer. ...
The solubility of a substance is the amount of the substance or solute that will give a saturated solution with a specific amount of solvent, that is, when the maximum amount of solute that can be dissolved in that solvent has been attained. The solubilities of different substances...
A solution contains 40 grams of NaCl per 100 grams of water at 100 degrees Celsius. Is the solution unsaturated, saturated, or supersaturated? Calculate the osmolarity of a 4.40% w/w glucose (C6H12O6) solution. Assume density of the solution is 1...
Oxidation-reduction reaction takes place when the elements of substances lose or gain electrons after the reaction has taken place. An oxidation reaction occurs when an atom loses an electron resulting in an increase in its oxidation state while a reduction reaction occurs when an atom gains an ...
Why we can obtain 95% ethanol but not 100% ethanol by distillation of fermentation mixture (fermentation is process of produce of ethanol from glucose), what is azeotrope? Why isn't sucrose an electrolyte? How could you make 3 L of a 0.2 M solution of glucose (C6H12O6)?