When comparing and discussing bottled water, TDS is often mentioned as a standard quality metric. TDS stands for "total dissolved solids" and measures the minerals, salts and organic compounds that naturally dissolve in water via contact through rock and other surfaces. It is measured in milligrams...
Sodium fluoride and lead (II) nitrate are both soluble in water. If 1.13 g of NaF and 0.232 g of Pb(NO_3)_2 are dissolved in sufficient water to make 1.00 L of solution, will a precipitate form? (a) How do you know if there...
It is found in nature. Propane was first discovered in 1857 by Marcellin Berthelot. Propane can be seen to be used in liquefied petroleum gases (LPG), along with butylene, propylene, isobutylene, and butane.Answer and Explanation: When the chemical compound propane (CH3−CH2−CH3) p...
Why does sodium azide dissolve spontaneously in the water? Can sodium chloride and water be used to make a buffer? Explain. Why do some ionic compounds dissociate in water and others do not? Explain why the copper element has two ion charges. Why does RbBr + N...
What must be true for a substance to dissolve in water? A. The entropy term must be positive. B. The enthalpy and entropy terms must combine for a favored reaction. C. The free energy change of dis In the process of dissolving sugar in water, the entropy increas...
When ammonia combines with water, it forms the aqueous salt ammonium hydroxide. Ammonium is a monovalent cation with formula NH4+. All ammonium salts are soluble in water. Answer and Explanation: Part (a) - Reaction The reaction of magnesium with gaseous ammonia produces ...
Briefly explain how to make a saturated solution of sodium bicarbonate. When the sodium bicarbonate solution is added to the salicylic acid/naphthalene mixture dissolved in ether, a gas is evolved. W 1. Why is potassium hydroxide used to dissolve the aluminum? Why not ...
Consider a beaker of salt water sitting open in a room. Over time, does the vapor pressure increase, decrease, or stay the same? Explain. Raoult's Law: Raoult's law states the effect of the addition of a non-volatile solute ...