1-Some Basic Concepts in Chemistry

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The specific volume of cylindrical virus particle is $6.02 \times 10^{-2}cc/gm$ whose radius and length are 7 Å & 10 Å respectively. If .... ?
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Given below are the statements :
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Define the term mole. How is it related to Avogadro’s number ?
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Differentiate between molecular mass and molar mass ?
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Explain the difference between empirical formula and molecular formula ?
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0.5 mole of a gas at STP occupies a certain volume. Calculate the volume occupied by the gas ?
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2.5 g sample of Na₂CO₃ is dissolved in water and the solution is made up to 250 mL. Calculate its molarity and normality ?
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Given below are the assertion and reason for the following ?
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At constant T and P, 5.0 L of SO₂ is reacted with 3.0 L of O₂ according to the following equation :
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The mole fraction of the solute in a 1.00 molal aqueous solution is :
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A solution contains 25% water, 25% ethanol (C₂H₅OH) and 50% acetic acid (CH₃COOH) by mass. Which of the following matches with its ... ?
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1 gram of sodium hydroxide was treated with 25 mL of 0.75 M HCI solution, the mass of sodium hydroxide left unreacted is equal to :
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Graph between xmmx and PP for a gas on a solid adsorbent at constant temperature shows a linear relationship. According to Freundlich .......?
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Indrani Chakraborty
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A 6.85 g sample of the hydrate $Sr(OH)_2.xH_2O$ is dried in an oven to give 3.13 g of anhydrous $Sr(OH)_2$. What is the value of x?
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Daniel
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Sucrose has molecular formula $C_{12}H_{22}O_{11}$. How many moles of carbon atoms are present in its 34.2 g sample?
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Daniel
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Provide the correct explanation for the following assertion and reason ?
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Daniel
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The number of carbon atom present in 50g of 50% pure $CaCO_3$ ?
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Daniel
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A sample of hydrochloric acid contains 20% hydrochloric acid by weight. How much of this acid is required for the complete reduction of 50 g ...?
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Daniel
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Provide the correct explanation for it ?
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Daniel
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The number of carbon atom present in 50g of 50% pure $CaCO_3$ ?
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