Question
One mole of Aluminium Sulphate (Al₂(SO₄)₃)
contains how many moles of oxygen atoms?Solution
Aluminium Sulphate (Al₂(SO₄)₃) consists of 2 aluminum atoms, 3 sulfur atoms, and 12 oxygen atoms per molecule. Each sulfate group (SO₄) has 4 oxygen atoms, and with 3 such groups, it totals 12 oxygen atoms in one mole. Key Points: 1. The molecular formula of Aluminium Sulphate is Al₂(SO₄)₃. 2. One mole of Al₂(SO₄)₃ contains: o 2 moles of Al atoms o 3 moles of S atoms o 12 moles of O atoms. 3. Commonly used as a coagulant in water treatment. 4. The calculation of moles is based on Avogadro’s number. 5. Total molar mass = 342 g/mol. Bee Facts: • 6 moles (a): Half the correct amount. • 9 moles (b): Incorrect calculation. • 12 moles (c): Correct number of oxygen atoms. • 8 moles (d): Underestimated number.
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.
Select the set in which the numbers are related in the same way as are the numbers of the following set. (NOTE: Operations should be performed on the wh...
Arrange the letters of each group to make a meaningful word and find the odd man out:
Find the odd set of numbers from the given alternatives?
Select the option in which the numbers do not share the same relationship as that shared by the given pair of numbers.
34 : 408
Three of the four given words are alike in a certain way and thus form a group, which of the following words does not belong to the group?
Select the option in which the numbers are NOT related in the same way as the numbers of the following sets.
(42, 54, 36)
(75, 90, 45)
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.
Four number-pairs are given, three of them are alike in a certain manner and one is different. Choose the different number-pair.
Find the odd one out
Relevant for Exams:
