Illustrate: The Avogadro constant is so large it is normally written in scientific notation. To
get an idea of the enormity of the Avogadro constant, write it out in standard form. (You will
need to move the decimal place to the right 23 times, so you will need to add a lot of zeros!) IF YOU ANSWER THIS ILL GIVE TOU MY ONLYFANS FOR FREE 2 MONTHS

Avogadro's constant is a factor, which is used to determine the number of particles in a given substance.

In the scientific notation, Avogadro's constant is expressed as:

6.02214076×10²³ mol⁻¹.

Avogadro's constant is a proportionality factor, which determines the number of particles present in the 1 mole of a substance.

In the standard from, it is equivalent to 602,252,000,000,000,000,000,000.

Therefore, the avogadros constant canbe expressed as 6.02214076×10²³ mol⁻¹ or 602,252,000,000,000,000,000,000.

To know more about Avogadro's number, refer to the following link:

link

602200000000000000000000

Explanation:

move the decimal place over 23 places to the right

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol