Lab question
Explain how dissolving the Group IV carbonate precipitate with 6M CH3COOH, followed by the addition of extra acetic acid, establishes a buffer with a pH of approximately 5.
Help me to go through this problem. When 7.1gm Na2SO4 (molecular mass 142) dissolves in 100ml H2O , the molarity of the solution is: (a) 2.0 M (b) 1.0 M (c) 0.5 M (d) 0.05 M
what is the molarity of the solution prepared by dissolving 75.5 g of pure KOH in 540 ml of solution
an atom of an element is 10.1 times heavier than the mass of a carbon atom.What is its mass in amu?
Select the right answer of the question.10ml of conc.H2SO4 (18 molar) is diluted to 1 litre. The approximate strength of dilute acid could be: (a)0.18 N (b)0.09 N (c) 0.36 N (d)1800 N
Show the organic structure of cetearyl alcohol and state what the organic family is? Briefly state it.
C-X bond length in halobenzene less then C-X bond lengthin CH3-x
How can you decide if there is a dipole moment or not?
What do you mean by the term alum? Also illustrate its uses?
The solution of sugar in water comprises: (i) Free atoms (ii) Free ions (iii) Free molecules (iv) Free atom and molecules. Choose the right answer from the above.
6. 20 gm of hydrogen is present in 5 litre vessel. The molar concentration of hydrogen is
18,76,764
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