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Inquiry Lab Results

Inquiry Lab Results

 

Vinegar and chalk react to form a gas and yellow pigment

 

Vinegar and chalk (whole) gives of a small amount of gas

 

Vinegar and chalk (ground up) produces a larger amount of gas.

 

Increasing the amount of time grinding up the chalk increased the amount of gas

 

Changing the fluid volume of vinegar to the mass amount of chalk changes the amount of gas

 

A large portion of vinegar and a small amount of chalk appears to produce the most amount of gas

 

Stirring the solution of chalk and vinegar makes more gas.

 

Heating up the vinegar increases the amount of gas.

 

Reaching the point of boiling the vinegar decrease the amount of gas.

 

In a balanced equation, you need twice the amount of molecules of vinegar to chalk.

 

There is a unique relationship between grams, a unit called a mole and atomic molecular mass.

 

Example

 

I mole of a compound represents 6.02 x 10 to the 23 power of atoms or particles.

 

The atomic mass represents the number of grams /mole of a substance

 

Hydrogen has an atomic mass of 1 amu

Hydrogen has atom mass of 1 gram/mole

I mole of Hydrogen atom has a mass of 1 gram

 

Water has atomic mass of 18 amu ( 2xH + 1 Oxygen)

Water has atomic mass of 18 grams/mole

1 mole of Water equals 18 grams.

 

It might be useful to know the density of vinegar to calculate the grams/ml

 

posted by Marc Bernard Carmichael in Science 10 and have No Comments

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