The final temperature of the block of brass with a mass of 30.6 g at 87.4°C is 30.82°C.
SPECIFIC HEAT CAPACITY:
- The amount of heat absorbed or released by a substance can be calculated using the following formula:
- (m × c × ∆T) water = - (m × c × ∆T) metal
According to this question;
METAL:
- m = 30.6g
- c = 0.380 J/g°C
- ∆T = T - 87.4°C
WATER:
- m = 62.3g
- c = 4.184J/g°C
- ∆T = T - 28.3°C
- 62.3 × 4.184 × (T - 28.3) = - {30.6 × 0.380 × (T - 87.4)}
- 260.7T - 7376.8 = - {11.63T - 1016.3}
- 260.7T - 7376.8 = -11.63T + 1016.3
- 260.7T + 11.63T = 1016.3 + 7376.8
- Therefore, the final temperature of the block of brass with a mass of 30.6 g at 87.4°C is 30.82°C.
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Answer:
It is considered an ionic compound since it is composed of the magnesium cation (Mg2+) and two hydroxide anions (OH-). There are no covalently shared electrons here. ... The reaction of the hydroxide anions with acid causes more of the magnesium hydroxide to dissolve until all of the acid has been neutralized.
Explanation:
substitution reaction (also known as single displacement reaction or single substitution reaction) in a chemical reaction during which one functional group in chemical compound is replaced by an other functional group. a good example of a substitution reaction is halogenation .
B the cells metabolism is a type of energy that can be really good for the cells
0.11031 mg
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