Answer:
Acetone and water is immiscible
Acetone and hexane is miscible
Explanation:
Acetone with the chemical formula (CH3)2CO, is a nonpolar organic liquid that will mix easily. Hexane, an aliphatic hydrocarbon with 6 carbon atoms represented as C6H14 is also nonpolar. Thus, acetone and hexane would mixed completely to form a clear solution in the test tube.
On the other hand, acetone and water is immiscible (do not mix) since water, H2O, is a polar compound. And polar compounds do not react or dissolve nonpolar compounds (acetone). Usually, a mixture of acetone and water will be seen to form two distinct layers in the test tube.
Rewrite the formula C=5/9(F-32) substituting 23 for C: 23=5/9(F-32), then multiply both sides by the reciprocal of 5/9.
(9/5)*(23)=(9/5)*5/9(F-32)
41.4=F-32; add 32 to both sides.
41.4+32=F-32+32
73.4=F
False; Because when 2 substances are mixed another substance is created.
Answer:
The solubility curve helps us to predict which substance will crystallize out first from a solution containing two or more solutes. The solubility curve helps us to compare the solubilities of different substances at the same temperature.
Answer: 17 years
Explanation:
Expression for rate law for first order kinetics for radioactive substance is given by:
where,
k = rate constant
t = age of sample
a = let initial amount of the reactant
a - x = amount left after decay process
a) for completion of half life:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
b) for 8900 g of the mass of the sample to reach 7700 grams
Thus it will take 17 years
