Answer:
60 g
Explanation:
The formula relating mass (<em>m</em>), heat (<em>q</em>), and temperature change (Δ<em>T</em>) is
<em>q = mC</em>Δ<em>T</em> Divide both sides by <em>C</em>Δ<em>T</em> and switch
<em>m</em> = <em>q</em>/(<em>C</em>Δ<em>T</em>)
<em>q</em> = 1260 J
<em>C</em> = the specific heat capacity of water = 4.184 J·K⁻¹g⁻¹
Δ<em>T</em> = <em>T</em>₂ - <em>T</em>₁ = 313 K – 308 K = 5 K
<em>m</em> = 1260/(4.184 × 5)
<em>m</em> = 1260/21
<em>m</em> = 60 g
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Elmo did not_戈,;.,..........................
Answer:
Option C It has the same concentration of hydronium and hydroxide ions is correct.
Explanation:
A neutral solution will have pH=7
and the concentration of hydronium ions and hydroixde ions is the same.
So, Option C It has the same concentration of hydronium and hydroxide ions
is correct.