How many grams of silicon are present in 35- gram atoms of silicon (Given at. wt. of Si = 28)?
One “gram-atom” of silicon is 28 g. Therefore, 35 gram‐atoms of silicon corresponds to
35 × 28 = 980 g of silicon.
Calculate the weight of lime (CaO) obtained by heating 200 kg of 95% pure lime s
NextThe volume occupied by 20 g of hydrogen gas at STP, is ____L [Molar volume of ga
The total number of electrons present in one molecule of methane is;
MediumThe number of moles of nitrogen atoms present in 112 g of N2 is: [Atomic mass of N = 14 amu]
MediumWhat will be the vapour density of P2O5 ?[Atomic mass of P = 31 amu and O = 16 amu]
MediumThe volume occupied by 20 g of hydrogen gas at STP, is ____L [Molar volume of gas at STP is 22.4 L]
Easy112.0 mL of NO2 at STP was liquefied, the density of the liquid being 1.15 g mL−1. Calculate the num
HardThe ratio of total number of electrons present in 48 g of O₃ to 24 g of O₂ is
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