<p> <span lang="en-us" style="letter-spacing:0pt;font-weight:bold;">1000ppm(mg/L) 짜리 용액을 증류수와 혼합하여 각각 500, 100, 10, 1ppm으로 50ml 씩 <span lang="en-us" style="letter-spacing:0pt;font-weight:bold;">만들려고 합니다. </span></span> </p> <p> <span lang="en-us" style="letter-spacing:0pt;font-weight:bold;"><span lang="en-us" style="letter-spacing:0pt;font-weight:bold;"> </span></span> </p> <p> <span lang="en-us" style="letter-spacing:0pt;font-weight:bold;"><span lang="en-us" style="letter-spacing:0pt;font-weight:bold;">간단한 계산 방법 좀 알려주시면 감사드리겠습니다 ㅠㅠ</span></span> </p> <p> </p><p> <span lang="en-us" style="letter-spacing:0pt;font-weight:bold;"><span lang="en-us" style="letter-spacing:0pt;font-weight:bold;"> </span></span> </p> <span lang="en-us" style="letter-spacing:0pt;font-weight:bold;"><span lang="en-us" style="letter-spacing:0pt;font-weight:bold;"> </span></span> <p> <span lang="en-us" style="letter-spacing:0pt;font-weight:bold;"> </span> </p> <div class="hwp_editor_board_content"></div>
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