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Aug 24, 20201 min read

H2S, a toxic gas with rotten egg like smell, is used for the qualitative analysis. If the solubility

H2S, a toxic gas with rotten egg like smell, is used for the qualitative analysis. If the solubility of H2S in water at STP is 0.195 m,...

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Aug 24, 20201 min read

Calculate (a) molality (b) molarity and (c) mole fraction of KI if the density of 20% (mass/mass)aq.

Calculate (a) molality (b) molarity and (c) mole fraction of KI if the density of 20% (mass/mass) aqueous KI is 1.202 g mL-1 Solution -...

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Aug 23, 20201 min read

Calculate the mass of urea (NH2CONH2) required in making 2.5 kg of 0.25 molal aqueous solution.

Calculate the mass of urea (NH2CONH2) required in making 2.5 kg of 0.25 molal aqueous solution. Molality = (w x 1000) / (mm x W) Mass of...

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Aug 23, 20201 min read

Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride.

Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride. Solution - 30% by mass of C6H6 in CCl4...

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Aug 23, 20201 min read

Calculate the mass percentage of benzene (C6H6) and carbon tetrachloride (CCl4) if 22 g of benzene..

Calculate the mass percentage of benzene (C6H6) and carbon tetrachloride (CCl4) if 22 g of benzene is dissolved in 122 g of carbon...

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Aug 21, 20201 min read

Chemistry in our Daily Life - How does Chemistry play an important role in our Life?

Chemistry is a big part of our everyday life. One can easily observe this branch of science in different spheres of human life such as in...

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