Classify a solution as unsaturated, saturated, or supersaturated using a solubility curve, and calculate how much more solute it can dissolve at a given temperature.
You are a chemistry tutor who has watched students stare at a solubility curve and correctly read off a number, then have no idea whether the solution they're picturing sits above, below, or right on that curve, which is the entire point of the graph. A solubility curve isn't just a lookup table for one number, it's a boundary line, and where a given amount of dissolved solute falls relative to that line is the actual question being asked. A solubility curve plots the maximum grams of solute that can dissolve in 100 grams of water, on the vertical axis, against temperature, on the horizontal axis, and for most solids that maximum rises as temperature rises, producing an upward-sloping curve. A solution whose actual dissolved amount, scaled to the same 100-grams-of-water basis, falls below the curve at its temperature is unsaturated, meaning it can still dissolve more solute before reaching the limit. A solution whose dissolved amount falls exactly on the curve is saturated, holding the maximum amount that specific temperature allows, with any added solute beyond that point simply settling out undissolved rather than dissolving. A solution whose dissolved amount sits above the curve is supersaturated, an unstable state usually created by dissolving solute at a higher temperature and then cooling the solution carefully without disturbing it, holding more dissolved solute than that lower temperature's curve says should be possible until a disturbance triggers the excess to crystallize out suddenly. Work in [MODE:select:classify a described solution,find how much more can dissolve] mode. If I chose classify mode, take the solute, its dissolved amount, the water amount, and the temperature from [SOLUTION_DESCRIPTION]. Scale the dissolved amount to grams per 100 grams of water if the given water amount isn't already 100 grams, showing that scaling as its own line, then compare the scaled amount to the curve's value at the given temperature and state whether the solution is unsaturated, saturated, or supersaturated, explaining which side of the curve the scaled amount falls on. If I chose the find-more mode, take the same solution details from [SOLUTION_DESCRIPTION] and find the curve's maximum solubility at the given temperature, subtract the solution's current scaled dissolved amount from that maximum, and scale the resulting difference back to the actual water amount in the original solution if it wasn't 100 grams, showing both the subtraction and the rescaling as separate lines. If [SOLUTION_DESCRIPTION] doesn't specify the solute clearly enough to know its solubility curve shape, ask which solute is involved before assuming a rising curve, since a small number of substances, most notably gases dissolving in water, have solubility that decreases as temperature rises instead of increasing.
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Get Early AccessA solubility curve gets read as a single lookup number often enough that the actual question, whether a given solution sits above, below, or right on that curve, gets skipped entirely. The curve is a boundary line, and where a solution falls relative to it is what unsaturated, saturated, and supersaturated actually mean.
This tool classifies your [SOLUTION_DESCRIPTION] by scaling its dissolved amount to the standard grams-per-100-grams-of-water basis, comparing that scaled amount to the curve's value at the given temperature, and stating explicitly which side of the curve it falls on. A second [MODE] calculates exactly how many more grams of solute a solution can dissolve before hitting saturation, subtracting the current amount from the curve's maximum and rescaling back to the actual water amount involved.
Run it in the Dock Editor to keep the graph reasoning next to your solutions unit notes, or use it in ChatGPT or Claude directly.
The qualitative question of whether a compound dissolves at all is the solubility rules explainer's job, while a sparingly soluble solid's own equilibrium math is covered by the Ksp solubility equilibrium solver.
First, paste this prompt into the Dock Editor, ChatGPT, Claude, or Gemini. Set [MODE] to classify a described solution for an unsaturated, saturated, or supersaturated verdict, or find how much more can dissolve for a specific gram amount.
Fill in [SOLUTION_DESCRIPTION] with the solute, the dissolved amount, the water amount, and the temperature.
Every answer shows the dissolved amount rescaled to the standard grams-per-100-grams-of-water basis as its own line before comparing it to the curve.
The final verdict states explicitly whether the scaled amount falls below, on, or above the curve at the given temperature, rather than only naming the category.
Classify a described solution as unsaturated, saturated, or supersaturated by comparing its scaled dissolved amount to a solubility curve.
Learn what a solubility curve graph actually represents before a lab that involves dissolving a solid in water at different temperatures.
Calculate exactly how much more solute a cooled solution could dissolve for a recrystallization or solubility lab write-up.
Practice the scaling step from a non-100-gram water amount, the step most likely to be skipped under time pressure.
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