0.500 grams would be left after 56.0 days.
After 14 days=4.00 g
After 28 days=2.00 g
After 42 days=1.00 g
After 56 days=0.500 g
This is after four half lives.
Answer:
Molecular formula = N2O4
Explanation:
The empirical formula of a compound is NO2. Its molecular mass is 92g/mol. What is its molecular formula?
Step 1: Data given
The empirical formula = NO2
The molecular formula = NO2
Molar mass N = 14 g/mol
Molar mass O = 16 g/mol
Step 2: Calculate molecular mass of the empirical formula
Molar mass NO2 = molar mass N + Molar mass of 2*O
Molar mass NO2 = 14 + 2*16
Molar mass = 46 g/mol
Step 3: Calculate the molecular formula
We have to multiply the empirical formula by n
n = molecular mass / molecular mass of the empirical formula
n = 92 g/mol / 46 g/mol
n = 2
We have to multiply the empirical formula by 2
Molecular formula = 2*(NO2)
Molecular formula = N2O4
The answer is D. Because the other answers dont make any sense. - Dont have another account under bestfrienisbecky
Answer:
Suppose you are shooting a basketball toward a hoop. As the ball rises in the air, its -------Potential --------- energy increases and its -----------kinetic----------------- decreases.
Explanation:
Kinetic energy is the energy of movement or change. Potential energy is the energy a system has as a result of being able to undergo some change. ... As an object falls its potential energy decreases, while its kinetic energy increases. The decrease in potential energy is exactly equal to the increase in kinetic energy.
Answer:
4305
Explanation:
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