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\(\pi\)
e
\(\frac{a}{b}\)
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\(\sqrt{\,}\)
\(a^{b}\)
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\(\div\)
log
ln
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cos
cos⁻¹
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sin
sin⁻¹
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tan
tan⁻¹
The pH scale in chemistry is \(\text{pH} = -\log_{10} [H^+]\) where \([H^+]\) is the hydrogen ion concentration in moles per litre.
The pH of a solution is \(3.2\). Find the hydrogen ion concentration \([H^+]\) (give your answer in scientific notation with 3 significant digits).
\(\pi\)
\(e\)
\(x\)
\(n\)
\(u_n\)
\(f\)
\(\frac{a}{b}\)
\(\sqrt{\,}\)
\({a}^{b}\)
\(\ln{\,}\)
\(\log{\,}\)
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→
\(\sin{\,}\)
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)
\(\cos{\,}\)
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3
\(\times\)
\(\div\)
\(\tan{\,}\)
C
0
.
+
-
=
\(\times\)
\(\pi\)
\(e\)
\(x\)
\(n\)
\(u_n\)
\(f\)
\(\frac{a}{b}\)
\(\sqrt{\,}\)
\({a}^{b}\)
\(\ln{\,}\)
\(\log{\,}\)
!
7
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9
←
→
\(\sin{\,}\)
4
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6
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)
\(\cos{\,}\)
1
2
3
\(\times\)
\(\div\)
\(\tan{\,}\)
C
0
.
+
-
=
mol/L
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