The particles of a gas are molecules.
Hello!
the correct setup is shown at bottom of your question
we get
total moles*(1/102.0 g/mol)= total grams Al2O3
hope this helps. any questions please ask. thank you kindly
Assuming no other acid is in the H3PO4 mix, then
<span>a) the equation </span>
<span>2H3PO4 + 3Ba(OH)2>>3H2O+Ba3(PO3)2 </span>
<span>titration equation: </span>
<span>nb*Ma*Va=na*Mb*Vb </span>
<span>nb*molesacid=na*molesbase </span>
<span>3*75*.175/98=2*Molaritybase*.215
</span><span>0.927 mol/L</span>
Answer:
...BY CHOOSING A PROPER INDICATOR, SCIENTISTS CAN MINIMIZE THE DIFFERENCE IN THESE TWO NUMBERS,...
Explanation:
A chemical indicator is an agent or substance which gives a visible sign especially a color change when introduced to a solution of base indicating the threshold of the concentration of acid used in the titration procedure. These indicators include methyl orange, methyl red, phenolpthalein. They give a color change when the concentration of an acid as reached a critical limit in order for the reaction to be stopped. These indicators are involved in acid-base titrations, oxidation- reduction reactions and so on. More accurate results of the volume of the required acid or base is obtained by the introduction of these indicators.