Questions in chemical-aritmatic

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	The equivalent weight of an element is 4.Its chloride has a V.D 59.25.Then the valency of the element is
	1.25 g of a solid dibasic acid is completely neutralised by 25 ml of 0.25 molar $Ba{(OH)_2}$solution. Molecular mass of the acid is
	The oxide of a metal has 32% oxygen..Its equivalent weight would be
	The mass of a molecule of water is
	1.24 gm P is present in 2.2 gm
	The atomic weights of two elements A and B are 40 and 80 respectively. If $x$ g of A contains $y$ atoms, how many atoms are present in $2x$ g of B
	Assuming fully decomposed, the volume of $C{O_2}$released at STP on heating 9.85g of $BaC{O_3}$(Atomic mass of Ba=137) will be
	If ${N_A}$is Avogadro’s number then number of valence electrons in 4.2 g of nitride ions $({N^{3 - }})$
	The weight of $1 \times {10^{22}}$molecules of $CuS{O_4}.5{H_2}O$is
	Rearrange the following (I to IV) in the order of increasing masses and choose the correct answer from (a), (b) ,(c) ,and (d) (Atomic mass: N=14, O=16, Cu=63). I.1 molecule of oxygen II.1 atom of nitrogen III.$1 \times {10^{ - 10}}$g molecular weight of oxygen IV.$1 \times {10^{ - 10}}$g atomic weight of copper