Cho 0,1 mol X <span class="MathJax_Preview" style="color: inherit; display: none;"></span><span id="MathJax-Element-1-Frame" class="mjx-chtml MathJax_CHTML" tabindex="0" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="1.44em"><mrow><mo>(</mo><mrow><msub><mrow class="MJX-TeXAtom-ORD"><mi>C</mi></mrow><mrow class="MJX-TeXAtom-ORD"><mn>2</mn></mrow></msub><msub><mrow class="MJX-TeXAtom-ORD"><mi>H</mi></mrow><mrow class="MJX-TeXAtom-ORD"><mn>8</mn></mrow></msub><msub><mrow class="MJX-TeXAtom-ORD"><mi>O</mi></mrow><mrow class="MJX-TeXAtom-ORD"><mn>3</mn></mrow></msub><msub><mrow class="MJX-TeXAtom-ORD"><mi>N</mi></mrow><mrow class="MJX-TeXAtom-ORD"><mn>2</mn></mrow></msub></mrow><mo>)</mo></mrow></mstyle></math>" role="presentation" style="font-size: 127%; position: relative;"><span id="MJXc-Node-1" class="mjx-math" aria-hidden="true"><span id="MJXc-Node-2" class="mjx-mrow"><span id="MJXc-Node-3" class="mjx-mstyle"><span id="MJXc-Node-4" class="mjx-mrow" style="font-size: 144%;"><span id="MJXc-Node-5" class="mjx-mrow"><span id="MJXc-Node-6" class="mjx-mo"><span class="mjx-char MJXc-TeX-main-R" style="padding-top: 0.445em; padding-bottom: 0.593em;">(</span></span><span id="MJXc-Node-7" class="mjx-mrow"><span id="MJXc-Node-8" class="mjx-msubsup"><span class="mjx-base" style="margin-right: -0.045em;"><span id="MJXc-Node-9" class="mjx-texatom"><span id="MJXc-Node-10" class="mjx-mrow"><span id="MJXc-Node-11" class="mjx-mi"><span class="mjx-char MJXc-TeX-math-I" style="padding-top: 0.495em; padding-bottom: 0.298em; padding-right: 0.045em;">C</span></span></span></span></span><span class="mjx-sub" style="font-size: 70.7%; vertical-align: -0.212em; padding-right: 0.071em;"><span id="MJXc-Node-12" class="mjx-texatom" style=""><span id="MJXc-Node-13" class="mjx-mrow"><span id="MJXc-Node-14" class="mjx-mn"><span class="mjx-char MJXc-TeX-main-R" style="padding-top: 0.396em; padding-bottom: 0.347em;">2</span></span></span></span></span></span><span id="MJXc-Node-15" class="mjx-msubsup"><span class="mjx-base" style="margin-right: -0.057em;"><span id="MJXc-Node-16" class="mjx-texatom"><span id="MJXc-Node-17" class="mjx-mrow"><span id="MJXc-Node-18" class="mjx-mi"><span class="mjx-char MJXc-TeX-math-I" style="padding-top: 0.445em; padding-bottom: 0.298em; padding-right: 0.057em;">H</span></span></span></span></span><span class="mjx-sub" style="font-size: 70.7%; vertical-align: -0.212em; padding-right: 0.071em;"><span id="MJXc-Node-19" class="mjx-texatom" style=""><span id="MJXc-Node-20" class="mjx-mrow"><span id="MJXc-Node-21" class="mjx-mn"><span class="mjx-char MJXc-TeX-main-R" style="padding-top: 0.396em; padding-bottom: 0.347em;">8</span></span></span></span></span></span><span id="MJXc-Node-22" class="mjx-msubsup"><span class="mjx-base"><span id="MJXc-Node-23" class="mjx-texatom"><span id="MJXc-Node-24" class="mjx-mrow"><span id="MJXc-Node-25" class="mjx-mi"><span class="mjx-char MJXc-TeX-math-I" style="padding-top: 0.495em; padding-bottom: 0.298em;">O</span></span></span></span></span><span class="mjx-sub" style="font-size: 70.7%; vertical-align: -0.212em; padding-right: 0.071em;"><span id="MJXc-Node-26" class="mjx-texatom" style=""><span id="MJXc-Node-27" class="mjx-mrow"><span id="MJXc-Node-28" class="mjx-mn"><span class="mjx-char MJXc-TeX-main-R" style="padding-top: 0.396em; padding-bottom: 0.347em;">3</span></span></span></span></span></span><span id="MJXc-Node-29" class="mjx-msubsup"><span class="mjx-base" style="margin-right: -0.085em;"><span id="MJXc-Node-30" class="mjx-texatom"><span id="MJXc-Node-31" class="mjx-mrow"><span id="MJXc-Node-32" class="mjx-mi"><span class="mjx-char MJXc-TeX-math-I" style="padding-top: 0.445em; padding-bottom: 0.298em; padding-right: 0.085em;">N</span></span></span></span></span><span class="mjx-sub" style="font-size: 70.7%; vertical-align: -0.212em; padding-right: 0.071em;"><span id="MJXc-Node-33" class="mjx-texatom" style=""><span id="MJXc-Node-34" class="mjx-mrow"><span id="MJXc-Node-35" class="mjx-mn"><span class="mjx-char MJXc-TeX-main-R" style="padding-top: 0.396em; padding-bottom: 0.347em;">2</span></span></span></span></span></span></span><span id="MJXc-Node-36" class="mjx-mo"><span class="mjx-char MJXc-TeX-main-R" style="padding-top: 0.445em; padding-bottom: 0.593em;">)</span></span></span></span></span></span></span><span class="MJX_Assistive_MathML" role="presentation"><math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="1.44em"><mrow><mo>(</mo><mrow><msub><mrow class="MJX-TeXAtom-ORD"><mi>C</mi></mrow><mrow class="MJX-TeXAtom-ORD"><mn>2</mn></mrow></msub><msub><mrow class="MJX-TeXAtom-ORD"><mi>H</mi></mrow><mrow class="MJX-TeXAtom-ORD"><mn>8</mn></mrow></msub><msub><mrow class="MJX-TeXAtom-ORD"><mi>O</mi></mrow><mrow class="MJX-TeXAtom-ORD"><mn>3</mn></mrow></msub><msub><mrow class="MJX-TeXAtom-ORD"><mi>N</mi></mrow><mrow class="MJX-TeXAtom-ORD"><mn>2</mn></mrow></msub></mrow><mo>)</mo></mrow></mstyle></math></span></span><script type="math/tex" id="MathJax-Element-1">\Large \left({C}_{2} {H}_{8} {O}_{3} {N}_{2}\right)</script> tá

Cho 0,1 mol X $\Large \left({C}_{2} {H}_{8} {O}_{3} {N}_{2}\right)$ tá

4.4/5

Tác giả: Thầy Tùng

Đăng ngày: 18 Aug 2022

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Lời giải chi tiết

Câu hỏi:

Cho 0,1 mol X $\Large \left({C}_{2} {H}_{8} {O}_{3} {N}_{2}\right)$ tác dụng với dung dịch chứa 0,2 mol $\Large {NaOH}$ đun nóng thu chất khí làm xanh giấy quỳ tím ẩm và dd Y. Cô cạn Y thu được m gam chất rắn. Giá trị m là

A. 5,7 gam.
B. 12,5 gam.
C. 15,0 gam.
D. 21,8 gam.

Đáp án án đúng là: B

Lời giải chi tiết:

$\Large{X}$ có công thức cấu tạo $\Large{C}_{2} {H}_{5} {NH}_{3} {NO}_{3}$ nên $\Large{Y}$ gồm 0,1 mol $\Large {NaNO}_{3}$ và 0,1 mol $\Large {NaOH}$ dư

$\Large\Rightarrow {m}_{{Y}}=0,1.85+0,1.40=12,5$ gam

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