Test your limits with our Elite Pro-Vault Questions for chemistry
The density of a 3 M solution of sodium thiosulphate () is 1.25 g/mL. Calculate the molality of ONLY the ions. (Molar mass of = 158 g/mol)
The number of molecules in 4.25 g of NH₃ is approximately:
The empirical formula of a compound is CH₂O. Its molecular weight is 90. The molecular formula is:
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