Beste Wim,
Klopt dit dan?
<span class=”TextRun SCXW130274361 BCX0″ lang=”NL-NL” xml:lang=”NL-NL” data-contrast=”none”><span class=”NormalTextRun SCXW130274361 BCX0″>Equivalentiepunt</span><span class=”NormalTextRun SCXW130274361 BCX0″> in</span><span class=”NormalTextRun SCXW130274361 BCX0″> grafiek 3:</span><span class=”NormalTextRun SCXW130274361 BCX0″> 18,0 </span><span class=”NormalTextRun SpellingErrorV2Themed SCXW130274361 BCX0″>mL</span><span class=”NormalTextRun SCXW130274361 BCX0″> zwavelzuur.</span></span>
<span class=”LineBreakBlob BlobObject DragDrop SCXW130274361 BCX0″><span class=”SCXW130274361 BCX0″>18,0 * 0,0497 * 2 =1,789 mmol OH–ionen.</span></span><span class=”LineBreakBlob BlobObject DragDrop SCXW130274361 BCX0″><br class=”SCXW130274361 BCX0″ /></span>
1,789 /25,0 = 0,0716 M natronloog.
Mvg, Jaap