Questions tagged 'Chemical-Stoichiometry'

• How much of NaOH is required to neutralise 1500 $c{m^3}$of 0.1 $N\,HCl$ (Na = 23)
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry
• How much water should be added to 200 c.c of semi normal solution of $NaOH$to make it exactly deci normal
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry
• 2.76 g of silver carbonate on being strongly heated yield a residue weighing
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry
• In the reaction, $4N{H_3}(g) + 5{O_2}(g) \to 4NO(g) + 6{H_2}O(g)$, When 1 mole of ammonia and 1 mole of ${O_2}$are made to react to completion
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry
• Haemoglobin contains 0.33% of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron atoms (At. wt. of Fe = 56) present in one molecule of haemoglobin is
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry
• What quantity of ammonium sulphate is necessary for the production of $N{H_3}$gas sufficient to neutralize a solution containing 292 g of $HCl$? [HCl=36.5; ${(N{H_4})_2}S{O_4}$=132; $N{H_3}$=17]
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry
• The percentage of ${P_2}{O_5}$in diammonium hydrogen phosphate ${(N{H_4})_2}HP{O_4}$is
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry
• If $1\frac{1}{2}$moles of oxygen combine with Al to form $A{l_2}{O_3}$the weight of Al used in the reaction is (Al=27)
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry
• The percentage of Se in peroxidase anhydrous enzyme is 0.5% by weight (atomic weight=78.4). Then minimum molecular weight of peroxidase anhydrous enzyme is
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry
• ${H_2}$ evolved at STP on complete reaction of 27 g of Aluminium with excess of aqueous $NaOH$ would be
  Category: chemical-aritmatic | Tags: Chemical-Stoichiometry

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