Answer would be A. Why because isolation means that nothing can move in or out
Answer:
Results cannot be generalized. Looking at this table, it can be hard to see how the two types of data can be combined. Indeed, while they are fundamentally different quantitative and qualitative data share an important relationship with one another and, when integrated properly, can make each other more useful.
Explanation:
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The chemical symbol for gold is AU
Answer:
we will take a 100g sample of this solution for our convenience
so , there is 15 g kBr in this 100g solution
we know that molality is the number if moles of solute / mass of solvent in kg
we need to find the number of moles in 15g kBr
no of moles = 15/119 s
moles = 0.126 moles/ 100g
multiplying both the numerator and the denominator by 10 to get 1 kg in denominator
= 1.26 moles / 1 kg
Hence, the molality is 1.26
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