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Some Basic Conc...

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  • Question 1
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    We have 750 cm3 of 0.6 M Mohr's salt solution (Molar mass = 294 g), which we want to oxidise. How much potassium dichromate is required?

  • Question 2
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    HCl is not used in any titration when oxalic acid is used as an reducing agent (e.g. titrating potassium solution) because ___________.

  • Question 3
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    Which of the following is not an element?

  • Question 4
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    CaO (1.88 g) is obtained from Ca (1.35 g). Use the given data to find Z (atomic weight) of Ca.

  • Question 5
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    M2O3 is the formula of metal oxide. What would be the formula of its phosphate?

  • Question 6
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    0.0050 has ______ number of significant digits.

  • Question 7
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    In compound AaBb

  • Question 8
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    What is the atomic mass of A, if 10 g of A4O6 has 6.06 g of A?

  • Question 9
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    What is the average weight of a gaseous mixture of H2 and He, if mixture is equimolar in both components?

  • Question 10
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    Number of atoms in 560 g Fe (Atomic mass 56 g/mol) is _____.

  • Question 11
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    Find a in SOa if density of gas is 16/5.6 g/l.

  • Question 12
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    The term representing the ratio of atoms in a compound is called ________.

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