Determine the osmolarity of a 450 mM CaCl2 solution. Assume the solute is non-penetrating. What is the molarity of MgCl_2 when 29.3 g of MgCl_2 is dissolved in water to form 3.178 L of solution? A 0.5 M solution of NaCl would have osmolarity as compared to a 0.3 M solution of Al(...
Calculate the mass of calcium hydrogen carbonate required to produce 2.0 x 103 L of gaseous carbon dioxide at NTP conditions. The equation for this reaction is: Ca(HCO3)2 + 2HCl to CaCl2 + 2H2O + 2CO2. a) 7.24 x 10 -3 g b) 2.74 x 103 g c) 7.42 x 103 g d) ...
Fusion, or the conversion of a substance from solid to liquid, is an endothermic process which means that heat is absorbed from the surroundings. The amount of heat absorbed is called the latent heat of fusion. Answer and Explanation: The heat balance...
If the Li_ substitutes for Ca2_, what kind of vacancies would you expect to form? How many of these vacancies are created for every Li_ added? (b) Suppose that CaCl2 is added as an impurity to CaO. If the Cl_ substitutes for O2_, what kind of vacancies would you expect to form?
Briefly cite the main differences betweenionic, covalent, and metallic bonding. (b) State the Pauli exclusion principle. Offer an explanation as to why covalently bonded materials are generally less dense than ionically or metallically bonded ones. Compute the percents ionic character of the interat...
Calculate the boiling point of an aqueous 0.64 m CaCl2 solution. Calculate the boiling point of an aqueous 1.28 m NaCl solution. Calculate the boiling point of an aqueous 0.36 m NaNO3 solution. Calculate the boiling point of an aqueous 0.17 m NaNO3 solution. Calculate the boiling point of an...
Calculate the concentrations of each of the ions in {eq}\rm 0.25\ M\ Fe(NO_3)_2 {/eq}. a) {eq}\rm [Fe^{2+} ] {/eq}. b) {eq}\rm [NO_3^-] {/eq}. Molar Ratio: The molar ratio corresponds to the equivalent amount of one compound or eleme...
When we add table salt to the water, the expected freezing point of the solution is lower than the normal freezing point which is 0∘C. If we further add table salt to the solution, the freezing point will be much lower, This suggests that the amount of the non-volatile solute added...
In chemistry, atoms of different masses but the same atomic number are chemically identical. In fact, reactions have to do more with the mole i.e. count of atoms (or proportions) than the masses. The conversion factor from mass to number of moles and vice-versa is the molecular ...
Calculate the mass-to-mass ratio of 25.0 g of salt in 105 g of water. How many grams of salt are needed to make 575 g of saltwater that is 36.0% salt by mass? Calculate the mass of water (in grams) present in 9.41 grams of CaCl2 2H2O. Calculate the mass, in...