Chemistry - Complete d-block Question with Solution | TestHub

ChemistryComplete d-blockd-blockMedium2 minQB

ChemistryMediumnumerical

Passage / Comprehension

[At. weights of Ag = 108, Cr = 52, N = 14, O = 16]

What is sum of molar masses of all species present in ' $Z$ ' ?

Answer:

332.00

Solution:

Ferrochrome ore on fusion with NaOH and NaNO₃ forms soluble chromate ions in filtrate 'Y'.

On adding excess AgNO₃, yellow precipitate 'Z' of Silver Chromate is formed.

Molar mass of Ag₂CrO₄ = $2 (108) + 52 + 4 (16)$

$= 216 + 52 + 64 = 332$

The molar mass is 332.

Stream:JEESubject:ChemistryTopic:Complete d-blockSubtopic:d-block

⏱ 2mℹ️ Source: QB

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