Which statement is correct? Salts are formed by the reaction of bases with water. Most salts are ionic and are soluble in water.
2 answers:
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Answer:
The result is "4,241.17 years"
Explanation:
The disintegration rate for C-14 atoms is indicated in
The dissolution rate of the sample is given by
The C-14 proportion within the sample can be determined as per
With a half-life of 5730 years.
Now, we need to compute the number of half-lives (n) that are applicable:
Thus, the age of the sample is represented as =
Answer:- 64015 J
Solution: The calorimeter contains 4250 mL of water, which is at a temperature of 22.55 degrees Celsius.
The water's density is 1 gram per mL.
Thus, the mass of water = = 4250 grams.
After introducing the hot copper bar, the final temperature of the water reaches 26.15 degrees Celsius.
Thus, for the water = 26.15 - 22.55 = 3.60 degrees Celsius.
The specific heat capacity of water is 4.184 .
To determine the heat absorbed by the water, we can use the following formula:
where q represents heat energy, m refers to mass, and c indicates specific heat.
Now let's substitute the values into the equation to perform the calculations:
q = 64015 J
Therefore, the water absorbs 64015 J of heat.