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Explain why does a 0.10 m aqueous solution of NaCl have a high boiling point than a 0.10 m solution of C6H12O6?
1. Explain the NaCl has a smaller molar mass.
2. Define the aqueous NaCl solution has a higher concentration of particles.
3. Since the concentrations are the similar for an aqueous solution actually the boiling points are the same, not different.
4. The van't Hoff factor for the sugar (C6H12O6) solution is 1 as well as for the NaCl solution it is larger than one.
How many moles of HCl need to be added to 150 mL of 0.50 M NaZ to have a solution with a pH of 6.50? (Ka of HZ is 2.3e-5). Assume negligible volume of the HCl.
A beaker containing 20mL of a 0.200 M solution of methylamine (CH3NH2) is titrated with hydrochloric acid (HCl, 0.200 M). Find the pH when the following quantities of HCl solution have been added.
Using the de Broglie and Planck-Einstein formulas, and considering (A) a helium atom with a kinetic energy of 0.0025eV (i.e, thermal energy at 300K) and (B) a baseball (mass=500g) moving at 49m/s, evaluate and interpret the wavelength and frequenc..
A 21.496 g sample of magnesium is burned in air to form magnesium oxide and magnesium nitride. when the products are treated with water, 2.813 g of gaseous ammonia are generated.
Rank neohexene, t-butylacetylene, and di-t-butylacetylene in order of acidity.Rank the following compounds from least acidic to most.
If you have a sodium salt of stearic acid and neutralize it with acid, the solubility changes. Explain those relative solubility differences of these two chemical species in a solvent like hexane.
What amount of energy in Joules is necessary to melt a 14.5 gram piece of ice at 0 C to form liquid water at the same temperature 0? heat of fusion of water is 6.01 kJ/mol or 333 J/g
isotope 1 has a mass of 120.9038 rm amu and a relative abundance of 57.4 and isotope 2 has a mass of 122.9041 rm amu.
A 247-ln fullback runs the 40-yd dash at a speed of 19.99 +/- 0.10 mi/h and has a wavelength of 7.79E-37. What is the uncertainty in his position based on the de Broglie wavelength
Nitrogen oxide is a pollutant in the lower atmosphere that irritates the eyes and lungs and leads to the formation of acid rain. Nitrogen oxide forms naturally in atmosphere according to the endothermic reaction: N2+O2=2NO(g) Kp= 4.1x10^-31 at 298..
A solution of sodium chloride in water hasa vapor pressure of 20.9 Torr at 25 degrees celsius. What is the mole fraction of NaCl in this solution
When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV1.4 = C, where C is a constant. Suppose that at a certain instant the volume is 600 cm3 and the pressure is 80 kPa and is de..
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