Answer: A.Light travels in a straight line., B.Light behaves in a predictable way. , D.Light curves around corners or obstructions
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Answer:
10.656 g
Explanation:
Given data:
Mass of oxygen = ?
Volume of container = 3.33 L
Pressure of gas = 2.46 atm
Temperature = 27°C
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
Now we will convert the temperature.
27+273 = 300 K
Now we will put the values in formula.
n = PV/RT
n = 2.46 atm × 3.33 L / 0.0821 atm.L/ mol.K × 300 K
n = 8.192 atm. L /24.63 atm.L/ mol
n = 0.333 mol
Mass in grams:
Mass = number of moles × molar mass
Mass = 0.333 mol × 32 g/mol
Mass = 10.656 g
Hello,
No, Asexual and sexual only have 2 daughter cell.
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Answer:
C8H20P4F8
Explanation:
Molecular formula is based off a ratio of the molecular formula's molar mass divided by the empirical formula's molar mass.
The molar mass of the empirical formula C2H5PF2 is 98.02g. We find this by adding the molar masses of all elements in the formula, multiplied by their subscripts.
2(12.01) + 5(1.01) + 30.97 + 2(18.99) = 98.02
We then divide the molecular molar mass by the empirical molar mass.
392.16/98.02 = 4
This tells us that the molecular formula has 4 times the mass of the empirical formula. Because mass comes from the elements in the formula, we multiply all the subscripts by 4 to get the molecular formula.
2x4 = 8
5x4 = 20
1x4 = 4
2x4 = 8
So the molecular formula is C8H20P4F8