# Questions tagged [homework]

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### Solubility order for alcohols [closed]

Order for solubility of isomeric alcohols in a book was given as: Primary alcohol >Secondary alcohol >Tertiary alcohol After this I found a question as : 1) Which is more soluble in water? (a) 3-...
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### Calculating Ratio of Stability Constants

Solution I contains a mixture of $\ce{FeCl2}$ and $\ce{FeCl3}$, and solution II contains a mixture of $\ce{K4Fe(CN)6}$ and $\ce{K3Fe(CN)6}$. The concentrations of iron-containing species satisfy the ...
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### Find the number of water molecules “embedded” in sucrose

Recently I got a question as follows: How many molecules of water are joined with 12 atoms of carbon in a molecule of sucrose ? (A) 12 (B) 11 (C) 6 (D) 10 I am unable to ...
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### Ratio of Tb ions?

Estimate the ratio of $\ce{Tb^3+}$ to $\ce{Tb^4+}$ in $\ce{Tb_6O_11}$ ? For my solution I knew that I had to get a sum of 22 from 6 $\ce{Tb^3+}$ and $\ce{Tb^4+}$ ions so I just added different ...
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### Explain the enolisation process of 5,8-dihydroxynaphthalene-1,4-dione

I have no idea really how to get started... Where does the hydrogen for the first deprotonation come from? My working thus far:
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### Understanding gas stoichiometry for the reaction of xenon and fluorine

A $20.0$-L nickel container was charged with $0.500$ atm of xenon gas and $1.50$ atm of fluorine gas at $400$ $^{\circ}$C. The xenon and fluorine react to form xenon tetrafluoride. What mass of xenon ...
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### Can Ketones next to a Nitrogen hetero atom tautomerise?

I worry that the electronegative N will stabilise keto form so much that equilibrium will be so far towards keto it would be unreasonable to call the enolisiation process a factor
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### how to determine timescale with characterization methods?

There are 4 different timescales on material characterization (as classified in the Atkins textbook ): a)Time during which a quantum of radiation or a particle can interact with a molecule. b)...
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### Volume of products - stoichiometry

$\rm 20\,cm^3$ of ethyne, $\ce{C2H2}$, is reacted with $\rm 500 \,cm^3$ of oxygen. The equation for the reaction is: $$\ce{2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l)}$$ What is the total volume ...
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### Is there a certain amount of titrant that is ideal?

For an AP chem lab dealing with determining the amount of citric acid in orange juice by titrating with NaOH, one of the discussion questions goes like this: Choose an amount of beverage to be ...
Have a dissolution of $\ce{HNO_3}$ in water. The density is $1.42\ce{g/mL}$ with a concentration of $\ce{16M}$. What is the concentration in % mass/mass? Alright. So the % mass/mass is expressed ...