44.0 g
54.0 g
26.0 g
31.0 g
Correct answer is A
Density = mass/volume
∴ 1.98 = molecular mass/22.4
molecular mass = 1.98 * 22.4 = 44.35 ≅ 44.05
CO(g) + H2 O(g) → CO2(g) + H2(g) Calculate the standard heat change ...
The active reducing agent in the blast furnace for the extraction of iron is? ...
Which of the following pH values is likely to be that of a slightly alkaline solution? ...
The colour of methyl orange in alkaline medium is? ...
The presence of an impurity in substance will cause the melting point to ...
Duralumin consists of aluminum, copper? ...