chemical-aritmatic

Related Questions

• 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

  ---

• Which of the following is the best example of law of conservation of mass

  ---

• 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)

  ---

• The number of sodium atoms in 2 moles of sodium ferrocyanide is

  ---

• What is the concentration of nitrate ions if equal volumes of 0.1 M $AgN{O_3}$ and 0.1 M $NaCl$ are mixed together

  ---