Friday, December 28, 2018
A mass of 3.2 g of argon-40 has a volume of 210 cm3 at a temperature of 37 °C.
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Question 2 (a) Explain what is meant by the Avogadro constant. [2] (b) Argon-40 ( 40 18 Ar) may be assumed to be an ideal gas. ...
Thursday, December 27, 2018
A value for the acceleration of free fall on Earth is given as (10 ± 2) m s-2. Which statement is correct?
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Question 13 A value for the acceleration of free fall on Earth is given as (10 ± 2) m s -2 . Which statement is correct? A The ...
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