Bernstein, Aaron, Naturwissenschaftliche Volksbücher, Bd. 12-16, 1897

Table of contents

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        <div xml:id="echoid-div103" type="section" level="1" n="92">
          <pb o="13" file="0281" n="281"/>
          <p>
            <s xml:id="echoid-s3645" xml:space="preserve">Das vorſtehende Bildchen (Fig. </s>
            <s xml:id="echoid-s3646" xml:space="preserve">6) zeigt die pneumatiſche
              <lb/>
            Wanne zum fertigen Gebrauch, den wir näher kennen lernen
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            werden. </s>
            <s xml:id="echoid-s3647" xml:space="preserve">Die Bank darf nicht wackeln und muß feſt und breit
              <lb/>
            genug ſein, um eine umgekehrte Flaſche oder ein Glas ſicher
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            tragen zu können.</s>
            <s xml:id="echoid-s3648" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3649" xml:space="preserve">Wenn man ſich all das angeſchafft hat, ſo kann man die
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            chemiſche Kunſt ſofort anfangen.</s>
            <s xml:id="echoid-s3650" xml:space="preserve"/>
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        <div xml:id="echoid-div105" type="section" level="1" n="93">
          <head xml:id="echoid-head105" xml:space="preserve">
            <emph style="bf">VIII. Wie man ſich Waſſerſtoffgas machen kann.</emph>
          </head>
          <p>
            <s xml:id="echoid-s3651" xml:space="preserve">Waſſerſtoffgas kommt als ſolches in der Natur nur ganz
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            ſelten vor. </s>
            <s xml:id="echoid-s3652" xml:space="preserve">Das Gas, wenn es ſich irgendwo, wie z. </s>
            <s xml:id="echoid-s3653" xml:space="preserve">B. </s>
            <s xml:id="echoid-s3654" xml:space="preserve">in vul-
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            kaniſchen Gaſen, frei entwickelt, ſteigt ſofort in der Luft in die
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            Höhe, weil es an vierzehnmal leichter iſt als unſere atmoſphäriſche
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            Luft. </s>
            <s xml:id="echoid-s3655" xml:space="preserve">Es iſt daher auch kein Wunder, daß man dieſes Gas
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            erſt ſeit etwa hundert Jahren genauer kennt, obwohl es als
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            Hauptbeſtandteil des Waſſers in gar gewaltigen Maſſen in
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            der Natur exiſtiert. </s>
            <s xml:id="echoid-s3656" xml:space="preserve">Das Waſſer beſteht aus einem Maß
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            Sauerſtoff und zwei Maß Waſſerſtoff. </s>
            <s xml:id="echoid-s3657" xml:space="preserve">Wenn man nun ein
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            Mittel anwendet, wodurch man einer Maſſe Waſſer den Sauer-
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            ſtoff entzieht, ſo wird der Waſſerſtoff frei, und bei einer geeig-
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            neten Vorrichtung kann man denſelben ganz gut auffangen.</s>
            <s xml:id="echoid-s3658" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3659" xml:space="preserve">Man hat viele Mittel, dies zu erreichen; </s>
            <s xml:id="echoid-s3660" xml:space="preserve">wir jedoch wollen
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            es in der leichteſten und bequemſten Manier verſuchen.</s>
            <s xml:id="echoid-s3661" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3662" xml:space="preserve">Man ſchüttet in eine gewöhnliche Flaſche eine Handvoll
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            kleine Stückchen Zink, wie ſie jeder Klempner für ein paar
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            Pfennige abläßt. </s>
            <s xml:id="echoid-s3663" xml:space="preserve">Auch eine Handvoll kleine Nägel iſt dazu
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            brauchbar. </s>
            <s xml:id="echoid-s3664" xml:space="preserve">Sodann gießt man verdünnte Schwefelſäure in die
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            Flaſche, ſo daß ſie etwa halb voll wird. </s>
            <s xml:id="echoid-s3665" xml:space="preserve">Man wird ſofort
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            ſehen, daß von dem Zink oder den eiſernen Nägeln Luftblaſen
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            aufſteigen und als Gas aus der Flaſche hinausſtrömen. </s>
            <s xml:id="echoid-s3666" xml:space="preserve"/>
          </p>
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