Related InterviewSolutions

• 10mL of 2(M) NaOH solution is added to 200mL of 0.5 (M) of NaOH solution. What is the final concentration?A. 0.57MB. 5.7MC. 11.4MD. 1.14M
• Dissolving 120 g of urea (molecular mass = 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is :A. 1.78MB. 2.00MC. 2.05MD. 2.22M
• The density of a solution prepared by dissolving 120 g of urea (mol. Mass=60 u) in 1000 g of water is 1.15 g/mL. The molarity if this solution isA. 2.05 MB. 0.50MC. 1.78MD. 1.02M
• The incorrect statement (s) regarding 2M `MhCl_(2)` aqueous solution is/are `(d_("solution") = 1.09 gm//ml)`A. Molality of `Cl^(-)` is 4.44 mB. Mole fraction of `MgCl_(2)` is exactly 0.035C. The conc. Of `MgCl_(2)` is 19% w/vD. The conc. of `MgCl_(2) " is " 19 xx 10^(4)` ppm
• Find number of `Na^(+)` & `PO_(4)^(-3)` ions in `250mol` of `0.2M Na_(3)PO_(4)` solution .
• `100 ml "of" 0.06 M Ca (NO_(3))_(2)` is added to `50 mL` of `0.06 M Na_(2)C_(2) O_(4)`. After the reaction is complete.A. 0.003 moles of calcium oxalate will get precipitatedB. 0.003 M `Ca^(2+)` will remain in excessC. `Na_(2)C_(2)O_(4)` is the limiting reagentD. Oxalate ion `(C_(2)O_(4)^(2))` concentration in final solution is 0.003 M
• Molarity of liquid HCl with density equal to `1.17 g//mL` is:A. 36.5 MB. 18.25 MC. 32.05 MD. 42.10 M
• Molality of 20% (w/w) aq. glucose solution isA. `(25)/(18)m`B. `(10)/(9)m`C. `(25)/(9)m`D. `(5)/(18)m`
• What would be the molality of 20% (mass/mass) aqueous solution of KI ? (molar mass of KI `= 166 g mol^(-1)`)A. `1.08`B. `1.48`C. `1.51`D. `1.35`
• The molar concentration of HCl (aq.) is `10^(-5)`M. Which of the following statement are correct (`d_("solution")` = 1 gm/cc)A. The mole fraction of `HCl ~= 1.8 xx 10^(-7)`B. The concentration of HCl in ppm is 3.65 ppmC. The molality of HCl solution is approximately `10^(-5) m`D. The (w/v)% of solution is `3.65 xx 10^(-5) %`