Rb+ ion has lowest conductivity in water because of its higher atomic weight, it cannot move as fast as the other mentioned ions
350 oC 3. Which ion has the lowest molar conductivity in water at 250C?* (1 Point)...
1. Conductivity: (15 marks total) The limiting molar conductivity of Na,SO4(aq) is 259.8 ? 1 mor' cm2 at 25°C and l atm and the transport number of the cation is 0.386. a) Using only the information above find the limiting molar ionic conductivities of Na (aq) and SO4 (aq) (4 marks). If you can't work this part out please use values of 20 and 60 cm-moll ?) respectively for subsequent sections b) Calculate the ionic mobility of each ion (2...
Question 15 Which element has the highest electron affinity? Fr Na OC Li D Question 19 100% 2 pts Su Home My CzHg + 302 - 3CO2 + 4H2 How many moles of oxygen are necessary to react completely with 4.0 moles of propane (CH)? 10 9 12 none of these Question 20 2 pts Which of the following elements have the lowest ionization energy? OF Rb Na Question 22 Which of the following atoms is the largest? O Rb...
Which of the following has the highest conductivity Pure Water 0.1 M Ba(OH)2 solution 0.5 M Ba(OH)2 solution Air Which conductivity point is the equivalence point of the reaction? H2SO4 +Ba(OH)2 à BaSO4 + 2 H2O The lowest conductivity point The highest conductivity point The start point None of above
Which among the compounds has the lowest vapor pressure at 25 oC? A.) Ethyl alcohol, CH3CH2OH B.) Diethyl ether, CH3CH2OCH2CH3 C.) Water, H2O D.) Bromine, Br2
Which of the following compounds will have the lowest molar solubility in pure water? AgI, K sp = 8.51 × 10 -17 PbS, K sp = 9.04 × 10 -29 FeS, K sp = 3.72 × 10 -19 PbSO 4, K sp = 1.82 × 10 -8 MgCO 3, K sp = 6.82 × 10 -6
Which has the highest entropy? (1 point ) * C(s) CH4(g) H2O(l) H2O(s) Which has lowest entropy? (1 point ) * H2O(l) NaCl(s) O2(g) sugar (aq) Which has largest entropy? (1 point ) * .01 L H2O 0.5L N2 at STP 1 L Ar(g) at 4 K 1L O2 at STP Which has lowest entropy? (1 point ) * air ice cubes liquid water space
Which of the following aqueous solutions has the lowest freezing point? The Kf of water is 1.86 kg.oC/mol. a. 0.8 m CH3OH (methanol) b. 0.4 m NaCl c. 0.3 m MgBr2 d. 0.2 m AlF3 e. 0.25 m Ca(NO3)2 Calculate the freezing point ONLY for the solution you marked as your answer above.
Question 3 Which has largest entropy? (1 point)* .01 L H20 O 0.5L N2 at STP O IL Ar(g) at 4K O 1L 02 at STP Question 4 Which has lowest entropy? (1 point)* O air O ice cubes O liquid water O space
Question 4 (1 point) Saved Which of the following compounds has the lowest expected boiling point? HINT: Consider the amount of force required to induce a dipole. How does that relate to differences in electronegativity? CCl4 SICIA GeCl4 They all have the same expected boiling point Question 5 (1 point) Show Report e е
1) A saturated solution of copper (II) iodate in pure water has a copper ion concentration of 2.7X10^-3 M. a) whar is the molar solubility of copper iodate in a 0.35 M Potassium iodate solution B) what is the molar solubility of copper Iodate in 0.35 M copper nitrate solution 2) a)consider the slightly soluble salt, silver chloride, Agcl. If you had 10.0 g of silver chloride, what volume of water would be required to completely dissolve this amount b)...