Answer : The specific heat of metal is
.
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
![q_1=-q_2](https://tex.z-dn.net/?f=q_1%3D-q_2)
![m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)](https://tex.z-dn.net/?f=m_1%5Ctimes%20c_1%5Ctimes%20%28T_f-T_1%29%3D-m_2%5Ctimes%20c_2%5Ctimes%20%28T_f-T_2%29)
where,
= specific heat of metal = ?
= specific heat of water = ![4.184J/g^oC](https://tex.z-dn.net/?f=4.184J%2Fg%5EoC)
= mass of metal = 129.00 g
= mass of water = 45.00 g
= final temperature = ![39.6^oC](https://tex.z-dn.net/?f=39.6%5EoC)
= initial temperature of metal = ![97.8^oC](https://tex.z-dn.net/?f=97.8%5EoC)
= initial temperature of water = ![20.4^oC](https://tex.z-dn.net/?f=20.4%5EoC)
Now put all the given values in the above formula, we get
![129.00g\times c_1\times (39.6-97.8)^oC=-45.00g\times 4.184J/g^oC\times (39.6-20.4)^oC](https://tex.z-dn.net/?f=129.00g%5Ctimes%20c_1%5Ctimes%20%2839.6-97.8%29%5EoC%3D-45.00g%5Ctimes%204.184J%2Fg%5EoC%5Ctimes%20%2839.6-20.4%29%5EoC)
![c_1=0.481J/g^oC](https://tex.z-dn.net/?f=c_1%3D0.481J%2Fg%5EoC)
Therefore, the specific heat of metal is
.
Answer:
First oil well in the United States, built in 1859 by Edwin L. Drake, Titusville, Pennsylvania.
Answer:
Substances 1 and 2
Explanation:
an element only has 1 kind of atoms :3
Answer:
1) acetylide
2) enol
3) aldehydes
4) tautomers
5) alkynes
6) Hydroboration
7) Keto
8) methyl ketones
Explanation:
Acetylide anions (R-C≡C^-) is a strong nucleophile. Being a strong nucleophile, we can use it to open up an epoxide ring by SN2 mechanism. The attack of the acetylide ion occurs from the backside of the epoxide ring. It must attack at the less substituted side of the epoxide.
Oxomercuration of alkynes and hydroboration of alkynes are similar reactions in that they both yield carbonyl compounds that often exhibit keto-enol tautomerism.
The equilibrium position may lie towards the Keto form of the compound. Usually, if terminal alkynes are used, the product of the reaction is a methyl ketone.