The Brahman cattle have good resistance to high temperature, but its meat is poor and tough to eat. The English shorthorn cattle
2 answers:
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Answer:
Explanation:
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In this case, according to the given information about the pH, it is firstly necessary for us to remember that the pH is defined as the potential of the hydrogen ions in the solution and the concentration of those ions represents how many of them are present in the solution; in such a way, it is possible for us use:
Whereas the concentration of hydrogen ions can be calculated as follows:
So we plug in the given pH to obtain:
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Answer: The molecular formula will be
Explanation:
Mass of C= 49.47 g
Mass of N = 28.85 g
Mass of O = 16.48 g
Mass of H = 5.20 g
Step 1 : convert given masses into moles.
Moles of C =
Moles of N =
Moles of O =
Moles of H =
Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.
For C =
For N =
For O =
For H =
The ratio of C : N: O: H = 4: 2: 1: 5
Hence the empirical formula is
The empirical weight of = 4(12)+2(14)+1(16)+5(1)= 97 g.
The molecular weight = 194.19 g/mole
Now we have to calculate the molecular formula.
The molecular formula will be =
Answer:
Bullet has more kinetic energy then baseball.
Explanation:
Mass of the bullet , m = 150 g = 0.150 kg
Velocity of the bullet = v = 440 m/s
Kinetic energy =
Kinetic energy of the bullet = K.E
Mass of the baseball, m' = = 0.36146 kg
(1 ounce = 0.0283495 kg)
Velocity of the baseball= v' = 105.1 mph
1 mile = 1609.34 m
1 hour = 3600 seconds
Kinetic energy of the baseball = K.E'
14,520 Joules > 398.83 Joules
K.E > K.E'
Bullet has more kinetic energy then baseball.