Concept explainers
(a)
Interpretation:
Nanoscale diagram for the contents of a beaker containing water and sugar has to be drawn.
Concept introduction:
Like dissolves like principle: ‘Like dissolves like’ principle says that polar compounds including ionic compound should be more soluble in polar solvent. Likewise, non–polar compound should be more soluble in non–polar solvent.
Polar molecule: Polar molecules have large dipole moments.
Non-Polar molecules: Non-polar molecules have bonded atoms with similar electronegativity results to have zero dipole moments.
Solubility: is the quantity of solute (solid, liquid or gas) that will dissolve in a given amount of solvent (solid, liquid or gas) at definite temperature and pressure. Solubility depends on the physical and chemical property of solvent, solute and concentration of the solution.
(b)
Interpretation:
Nanoscale diagram for the contents of a beaker containing Carbon tetrachloride and sugar has to be drawn.
Concept introduction:
Like dissolves like principle: ‘Like dissolves like’ principle says that polar compounds including ionic compound should be more soluble in polar solvent. Likewise, non–polar compound should be more soluble in non–polar solvent.
Polar molecule: Polar molecules have large dipole moments.
Non-Polar molecules: Non-polar molecules have bonded atoms with similar electronegativity results to have zero dipole moments.
Solubility is the quantity of solute (solid, liquid or gas) that will dissolve in a given amount of solvent (solid, liquid or gas) at definite temperature and pressure. Solubility depends on the physical and chemical property of solvent, solute and concentration of the solution.
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Chemistry: The Molecular Science
- 7. Suppose you make a solution that contains 17.59 g of sodium chloride and 960 g of water. (a) What is the mass % of sodium chloride? (b) If 16.47 mL of your solution weighs 16.651 g,what is the density (in g/cc)?arrow_forward(b) Zn(NO3)2(aq) + 2 N2OH(aq) → Zn(OH)2(s) + 2 NaNO3(aq) Write the complete ionic equation. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.) chemPad О Help Greek List the spectator ions. (Include states-of-matter under the given conditions in your answer. Separate substances in a list with a comma. Use the lowest possible coefficients.) chemPad О Help X.x" →=- Greek Write the net ionic equation. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.) chemPad О Help Greek Zu2+ Zu+2 Classify the type of reaction given for (b). (Select all that apply.) a combination reaction na combustion reaction O a decomposition reaction V a metathesis reaction V a precipitation reactionarrow_forward(a) The sodium ion did not take part in this chemical reaction(Diluted H2SO4(aq) versus NaOH(aq)). What do we call such an ion?(b) Draw a simple diagram which shows how the sodium ion mixes with water in solution.What do we call this physical process?arrow_forward
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- If 0.42 mg calcium fluoride, CaF2 is used as above to add fuoride to the drinking water, doesCaFz add more fluoride than 0.42 g of NaF in the 250 mL glass of water? Justify your answer.arrow_forward12. (b) A student knew that calcium hydroxide could be made by adding calcium to water. The student added 0.00131 mol of calcium to a beaker containing about 100 cm of water. A reaction took place as shown by the equation below, All the calcium hydroxide formed was soluble. Ca(s) + 2H,0(1I) → Ca(OH) (aq) + H,(g) (D Calculate the mass of calcium that the student added. mass of calcium = g (ii) Calculate the volume of hydrogen gas, in dm3, produced in this reaction at room temperature and pressure, RTP. volume of hydrogen gas = dm3 (iii) The student transferred the contents of the beaker to a 250 cm3 volumetric flask and water was added to make the solution up to 250 cm³. Calculate the concentration, in mol dm3, of hydroxide ions in the 250 cm³ solution. concentration = moldm 3arrow_forwardAnswer the following. (a) A certain solution has a hydrogen ion concentration of 4.48 x 10 moles per liter. Write this number in standard notation. (b) An African bush elephant can weigh up to 28,000 pounds. Write this number in scientific notation. (a) O moles per liter (b) poundsarrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning