Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 21 Oct 2017 My Price 6.00

concentration of sodium Ion

25.3 g of sodium carbonate, Na2CO3 is dissolved in enough water to make 250 ml of solution. If sodium carbonate dissociates completely, molar concentration of sodium Ion, Na+ and carbonate ions, CO32- are respectively (Molar mass of NasCO3 = 106 g mol-1) [CBSE AIPMT 2010]

A 1.90 M and 1.910 M
B 0.477 M and 0.0477 M
C 0.955 M and 1.910 M
D 1.910 M and 0.955 M
Question 8

On mixing, heptanes and octane form an ideal solution. At 373 K, the vapour pressures of the two liquid components (heptanes and octane) are 105 kPa and 45 kPa respectively. Vapour pressure of the solution obtained by mixing 25.0 g of heptanes and 35 g of octane will be (molar mass of heptanes = 100 g mol-1 and of octane = 114 g mol-1) [AIEEE 2010]

A96.2 kPaB144.5 kPaC72.0 kPaD36.1 kPa

Answers

Maurice Tutor
(5)
Status NEW Posted 21 Oct 2017 10:10 AM My Price 6.00

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