The temperature change is 96.9 °C
Using Q = mcΔT where Q = quantity of energy applied = 250 J, m = mass of gold = 20 g, c = specific heat capacity of gold = 0.129 J/g °C and ΔT = temperature change
Since we require the temperature change, making ΔT subject of the formula, we have
ΔT = Q/mc
substituting the values of the variables into the equation, we have
ΔT = 250 J/(20 g × 0.129 J/g °C)
ΔT = 250 J/(2.58 J/°C)
ΔT = 96.89 °C
ΔT ≅ 96.9 °C
So, the temperature change is 96.9 °C
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brainly.com/question/16384350
Answer:
Explanation:
Monatomic elements are simply elements that are stable as single atoms (mona/mono means one!)
Which gas has only one atom?
Answer:1.2g of NaOH
Explanation:
First we put down the equation of reaction as shown in the image attached. From the equation of reaction, we can calculate the mass of sodium hydroxide that reacts with one mole of iron II ion according to the balanced stoichiometric equation. Using the information provided about the iron II nitrate, we can calculate the amount of Fe2+ that reacted with sodium hydroxide as shown in the image. Lastly, we use this information to obtain the mass of sodium hydroxide that reacted with the stipulated amount of NaOH.
The ph of the solution with is 9.0