3 years ago

What is the average mass of a single argon atom in grams?

1 answer:

6 0

Best Answer:<span> </span><span>The molar mass of Ar = 39.948g/mol
1mol Ar = 6.022*10^23 atoms
Therefore 1 atom has mass = 39.948 /(6.022*10^23) = 6.63*10^-23g</span>

You might be interested in

What high pressure zone that forms between the trade winds and westerlies called?

aalyn [17]

The westerlies, anti-trades, or prevailing westerlies, are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude. They originate from the high-pressure areas in the horse latitudes and trend towards the poles and steer extratropical cyclones in this general manner.

4 0

3 years ago

Calculate the pH when 64.0 mL of 0.150 M KOH is mixed with 20.0 mL of 0.300 M HBrO (Ka = 2.5 × 10⁻⁹)

KonstantinChe [14]

Answer:

The answer is "12.06"

Explanation:

Given:

$M(HBrO) = 0.3\ M\\\\V(HBrO) = 20 \ mL\\\\M(KOH) = 0.15 \ M\\\\V(KOH) = 64 \ mL$