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An acidic solution has pH $4$. If it is made $1000$ times less acidic (hydrogen ion concentration becomes $\frac{1}{1000}$ of the original), what will be the approximate new pH?एक अम्लीय विलयन का pH $4$ है। यदि इसे $1000$ गुना कम अम्लीय बनाया जाए (हाइड्रोजन आयन की सांद्रता मूल की $\frac{1}{1000}$ हो जाए), तो नया pH लगभग कितना होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: $7$$7$
Since $\text{pH}=-\log_{10}[H^+]$, if $[H^+]$ becomes $\frac{1}{1000}$, then pH increases by $\log_{10}(1000)=3$.
So new pH $\approx 4+3=7$.क्योंकि $\text{pH}=-\log_{10}[H^+]$ है, यदि $[H^+]$ $\frac{1}{1000}$ हो जाए, तो pH में वृद्धि $\log_{10}(1000)=3$ होगी।
इसलिए नया pH लगभग $4+3=7$ होगा।
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