Answer:
3.325×6.022×1023=2×1024 3.325 × 6.022 × 10 23 = 2 × 10 24 atoms.
Answer:
2.881x10^23 atoms
Explanation:
From the studies of Avogadro's hypothesis, we discovered that 1mole of any substance contains 6.02x10^23 atoms.
Therefore 1mole of Fe contains 6.02x10^23 atoms.
Molar Mass of Fe = 56g/mol
56g of Fe contains 6.02x10^23 atoms.
Therefore, 26.8g of Fe will contain = (26.8x6.02x10^23) / 56 = 2.881x10^23 atoms
work please!
Answer:
344.57
Explanation:
mass=moles × molar mass
moles=9.72×35.45
moles=344.57g
Answer: 3.64 hours
Explanation:
Formula of Average speed :
Given : Distance = 200km ; Average speed = 55 km/ hr
To find : Time
Substitute values for distance and average speed in the above formula , we get
Hence, it would take 3.64 hours for a car to travel 200km .