Answer:
good luck with these problems I've never seen anything like it
<u>Answer:</u> The moles of KHP in the sample is
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
Given mass of KHP = 0.2000 g
Molar mass of KHP = 204.22 g/mol
Putting values in above equation, we get:
Hence, the moles of KHP in the sample is
Some measure of examining information
<u>Answer:</u>
<em>The amount of energy needed when water at 72 degrees c freezes completely at 0 degrees c is Joules</em>
<em></em>
<u>Explanation:</u>
where
= Final T - Initial T
=30125J
Q is the heat energy in Joules
c is the specific heat capacity (for water 1.0 cal/(g℃)) or 4.184 J/(g℃)
m is the mass of water
mass of water is assumed as 100 g (since not mentioned)
is the heat energy required for the phase change
=mass × heat of fusion
Total heat =
Total Heat = 30123J + 33600J
= 63725 J
= Joules is the answer
Due to its bigger size compared to bromide ions, iodide ions have a poorer charge-to-volume ratio.
Iodide ion has a lower ratio of charge to volume because iodine is bigger and has the same charge as both other ions. Ca ions have a lower ratio of charge to volume than Sc ions because they are larger in size and have less charge than Sc ions. Due to its bigger size compared to potassium ions, bromide ions have a poorer charge-to-volume ratio. Sulfate ions have a larger charge density than ClO4 ions do because sulfate ions have more charge than ClO4 ions do.
Learn more about Iodide ion here-brainly.com/question/20533826
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