/**
* Converts the molarity to the desired unit.
*
* @param before The molarity in mol/L
* @return The molarity in the desired unit.
*/
public double getMolarity(double before) {
double after = molarity.getBlankAmount(before);
if (after != before)
steps.add(
Function.latex(
before
+ " \\{mol}{L} = "
+ after
+ "\\frac{"
+ molarity.getUnitName()
+ "}{"
+ molarity.getUnit2Name()
+ "}"));
return after;
}
/**
* Returns the value in the volume field, or Units.UNKNOWN_VALUE if blank.
*
* @return The entered volume.
*/
public double getVolume() {
double amount = volume.getAmount();
if (amount == Units.UNKNOWN_VALUE)
steps.add(Function.latex("\\text{" + name + " volume} = ?"));
else steps.add(Function.latex("\\text{" + name + " volume} = " + amount + " L"));
return amount;
}
/**
* Returns the value in the molarity field, or Units.UNKNOWN_VALUE if blank.
*
* @return The entered molarity.
*/
public double getMolarity() {
double amount = molarity.getAmount();
if (amount == Units.UNKNOWN_VALUE)
steps.add(Function.latex("\\text{" + name + " molarity} = ?"));
else
steps.add(Function.latex("\\text{" + name + " molarity} = " + amount + "\\frac{mol}{L}"));
return amount;
}
/**
* Returns the smallest number of sig figs in these fields.
*
* @return The sig fig number to use.
*/
public int getSigFigs() {
int sigFigs1 = volume.getSigFigs(), sigFigs2 = molarity.getSigFigs();
return sigFigs1 == -1 ? sigFigs2 : sigFigs2 == -1 ? sigFigs1 : Math.min(sigFigs2, sigFigs1);
}
/**
* Converts the volume to the desired unit.
*
* @param before The volume in L
* @return The volume in the desired unit.
*/
public double getVolume(double before) {
double after = volume.getBlankAmount(before);
unit = volume.getUnitName();
if (after != before) steps.add(Function.latex(before + " L = " + after + " " + unit));
return after;
}
/**
* Sets the value of the volume enter field.
*
* @param amount The value to set.
*/
public void setVolume(double amount) {
volume.setAmount(amount);
}
/**
* Sets the value of the molarity enter field.
*
* @param amount The value to set.
*/
public void setMolarity(double amount) {
molarity.setAmount(amount);
}
