Answer:
the mass = The same
the charge = Neutron has 0, Proton has +1
Answer:
Bismuth, because when three cubes of the same mass were heated and dropped into the same temperature water, the water the bismuth cube was dropped in heated up much less than the water with iron or tin.
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Answer:
5.0
Explanation:
We have a buffer system formed by a weak base (C₅H₅N) and its conjugate acid (C₅H₆N⁺). We can calculate the pOH using the Henderson-Hasselbach's equation.
pOH = pKb + log [acid]/[base]
pOH = -log 1.8 × 10⁻⁹ + log 0.02/0.01
pOH = 9.0
Then, we will calculate the pH.
pH + pOH = 14
pH = 14 - pOH = 14 - 9.0 = 5.0
Answer:
The final temperature (in degrees Celsius) of the iron block is 85.82 °C
Explanation:
<u>Determine the heat emitted by the condensing water.</u>
qw = 0.88 g H2O
qw = -2.1492 kJ
<u>Determine the heat absorbed by the iron block</u>
qw = - qw = - (-2.1492 kJ) = 2.1492 kJ
<u>Look up the specific heat for iron. Use the specific heat equation to solve for the final temperature of the iron block.</u>
q = mcΔT
ΔT = q / mc
Temp f = (q / mc) + Temp i
Temp f = 2.1492 x 10^3 J / 75 g (0.449 J/g.°C) + 22 °C
Temp f = 85.82 °C
Answer:
Explanation:
an acid base tritation is the determination of the corncerntration of an acid or base by exactly neutralizing the acid or base with an acid or base of known concentration. This is always for quantitative analysis of the corncerntration of an unknown acid or base solution.It makes use of the neutralization reaction that occura between acids and base.