What is the gravity of a location if the mass of an object is 300 kg and it has a weight of 450N ?
1 answer:
The gravity is 1.5m\s^2
Further explanation:
The weight of any object is given by the product of mass and gravity of the object
Let
m denote the mass of object
g be the gravity
and
w be the weight
Then the statement can be mathematically written as:
Given
m=300kg
w=450N
Putting the values of m and w into the formula
The gravity is 1.5m\s^2
Keywords: Mass, Gravity
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The pH of the weak acid is 3.21
Butyric acid is known as a weak acid, we need the concentration of [H+] formula of weak acid which is given by this equation :
where [H+] is the concentration of ion H+, Ka is the weak acid ionization constant, and Ma is the acid concentration.
Since we know the concentration of H+, the pH can be calculated by using
pH = -log[H+]
From question above, we know that :
Ma = 0.0250M
Ka = 1.5 x 10¯⁵
By using the equation, we can determine the concentration of [H+]
[H+] = √(Ka . Ma)
[H+] = √(1.5 x 10¯⁵ . 0.0250)
[H+] = 6.12 x 10¯⁴ M
Substituting the value of [H+] to get the pH
pH = -log[H+]
pH = -log(6.12 x 10¯⁴)
pH = 3.21
Hence, the pH of the weak acid c3h7cooh is 3.21
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