mр-ра=150*1,14 =171 г
m в-ва (нитрата натрия)=171*0,2=34,2
<span>оксид азота три эн два о три </span>
P2O5 + 6KOH(изб.) --> 2K3PO4 + 3H2O
<span>P</span><span>2</span><span>O</span><span>5</span><span> + </span><span>6K(+)</span><span> +6OH (-</span><span>)</span><span> --> </span><span>6K(+)</span><span> + 2PO</span><span>4(3-)</span><span> + 3H</span><span>2</span><span>O </span>
<span>P</span><span>2</span><span>O</span><span>5</span><span> + 6OH (-)</span><span> --> 2PO</span><span>4(3-)</span><span> + 3H</span><span>2</span><span>O </span>