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- Arithmetic
Being strong in arthematic mathemeatics within 15 days daily 1 hour live
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A bottle of oleum is labelled as 109%. Which of the following statement is/are correct for this oleum sample?
A It contains 40% of free SO3 by weight.
1.0 g of this sample approximately B requires 22.25 mL of 0.5 M NaOH solution for complete neutralization.
0.5 g of this sample approximately Crequires 11.12 mL of 0.1 N - Ba(OH)2 solution for complete neutralization.
When 500 g water is added to 100 g of this D sample, the resulting solution becomes 109 (49
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About the lesson
- Secondary
- SPM
- Form 6
- +3
levels :
Secondary
SPM
Form 6
STPM
Adult education
Other
- English
All languages in which the lesson is available :
English
Mathematics class arthematicsA quantity of 1.878 g of a metal bromide when heated in a stream of hydrogen chloride gas is completely converted to the chloride weighing 1.00 g. The specific heat of the metal is 0.14 cal /° c-g. What is the molecular weight of the bromide? (Br80, Cl = 35.5)
A 45.54
B 125.54
C 285.54
D 205.54
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