The mass of 1 mole of an element is its atomic weight on the Periodic Table in grams.
1g = 1000mg
The mass of 1 mole of Kr = 83.80g Kr
Convert mg Kr to g Kr.
398mg Kr x (1g/1000mg) = 0.398g Kr
Convert g Kr to mol Kr.
0.398g Kr x (1mol Kr/83.80g Kr) = 4.75x10-3mol Kr
<span>Number of moles ( of N20) = mass / molar mass = 88.0g / 44.01g/mole = 2 moles
So, there's 2 moles of N20, and in every molecule there's 2 nitrogen atoms -> there's 4 moles of nitrogen in 88.0g of N20</span>
94.63 mg/L as a unit of density is equivalent to 9.463 × 10-⁵ g/mL.
<h3>What is density?</h3>
Density is a measure of the mass of matter contained by a unit volume.
Density of a substance can be calculated by dividing the mass of the substance in grams by its volume in milllilitres. This means that the unit of measurement for density is g/mL.
However, the conversion factor of g/mL to mg/L is as follows:
1 gram/millilitre = 1000000 milligrams/litre
94.63 mg/L = 94.63 ÷ 1000000
= 9.463 × 10-⁵ g/mL
Therefore, 94.63 mg/L as a unit of density is equivalent to 9.463 × 10-⁵ g/mL.
Learn more about density at: brainly.com/question/15164682
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Answer:
Tornado warnings indicate imminent danger to life and property.
Explanation:
A tornado has been in sight or will come.
