B- Oil spills can harm the environment
is the final temperature of the given solution.
<u>Explanation</u>:
When heat is absorbed during reaction enthalpy is positive. To calculate amount of heat absorbed by solution:
To calculate no of moles of molar mass is 158.034 g/mol:
Hence quantity of heat can be calculated as given:
As considered that heat capacity of pure water is same as of solution (means to heat 1 gm of water by 1 degree Celsius the energy required) =
Now it is considered that due to dissolvation, no heat loss occurs and final temperature can be calculated by using specific heat capacity:
The final temperature of the solution is .
Denser objects and substances experience a greater gravitational force acting upon their mass. This is why materials of different densities form layers. ... It is less dense than the Earth's crust, which is a solid. This is why the Earth's surface and atmosphere form distinct layers.
pls give brainliest if this helped :)
The reaction of Butanoic acid and excess ethanol occurs as shown in the equation;
CH₃CH₂CH₂COOH + CH₃CH₂OH = CH₃CH₂CH₂COOCH₂CH₃ + H₂O
1 mole of butanoic acid contains 88g/mol
Thus, 7.35 g of butanoic acid contains;
= 7.35/88
= 0.0835 moles
The mole ratio of butanoic acid and ethylbutyrate is 1:1
Thus moles of ethyl butyrate produced is 0.0835 moles
But 1 mole of ethyl butyrate contains 116 g/mol
Hence, the mass of ethyl butyrate will be
=0.0835 × 116
=9.686 g
Answer:
1. Nucleic acids
2. Proteins carbohydrates
3. Lipids
All of which are essential to the cell’s functions. Each is an Important component of the cell and performs a wide array of functions. Combine, these molecules and it will make up the majority of the cell’s mass.
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