Question

Convert 213.62 grams of xenon gas at STP to L.

1. What is the coefficient of the scientific notation answer ?
2. What is the exponent of the scientific notation answer?
3. How many significant figures are there in the answer?
4.What is the right most significant figure in the answer ?

Answer 1

Answer: The coefficient is 3.645

The exponent is 1

There are 4 significant digits

The rightmost significant figure is 5

Step-by-step explanation:

Scientific notation is defined as the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.

For example : 5000 is written as
`5.0* 10^3`

According to avogadro's law, 1 mole of every gas contains avogadro's number
`6.023* 10^(23)` of particles, occupy 22.4 L at STP and weighs equal to its molecular mass.

131.29 g of Xe occupy = 22.4 L at STP.

Thus 213.62 g of
`Xe` occupy =
`(22.4)/(131.29)* 213.62=36.45L` at STP.

Scientific notation =
`3.645* 10^1L`

The coefficient is 3.645

The exponent is 1

There are 4 significant digits

The rightmost significant figure is 5