a solution of household vinegar is to be analyzed. A pipet is used to measure out 10 ml of the vinegar which is placed in a 250m
1 answer:
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Answer:
v = 500 milliliters
Explanation:
⇒
⇒
1 to 1
Answer:
Kinetic energy of boy just before hitting the ground is 1000 J.
Speed of boy just before hitting the ground is 7.67 m/s
or 17.16 mi/hr.
Explanation:
Given that:
Mass of boy = 75lb = 34 kg
Height, h = 10ft = 3m
To find:
Kinetic energy of boy when he hits the ground.
<em>As per law of conservation of energy The potential energy gets converted to kinetic energy.</em>
<em></em>
<em></em><em> </em>Kinetic energy at the time boy hits the ground = Initial potential energy of the boy when he was at the Height 'h'
The formula for potential energy is given as:
Where m is the mass
g is the acceleration due to gravity, g = 9.8
h is the height of object
Putting all the values:
PE =
Hence, Kinetic energy is 1000 J.
Formula for Kinetic energy is:
where m is the mass and
v is the speed
Putting the values and finding v:
Given that:
1 m = 1.094 yd and 1 mi = 1760 yd
Converting 7.67 m/s to miles/hour:
First, let's write down the balanced chemical reaction between the given reactants:
NO₂ + NO → N₂O + O₂
The Lewis structure of the main product is shown in the attached picture. To determine the formal charge of each element, the formula is as follows:
Formal Charge = Valence electrons - Non-bonding valence electrons - (Bonding electrons/2)
For the leftmost N:
Formal charge = 5 - 2 - 6/2 = 0
For the middle N:
Formal charge = 5 - 0 - 8/2 = 1
For O:
Formal charge = 6 - 6 - 2/2 = -1
NO₂ + NO → N₂O + O₂
The Lewis structure of the main product is shown in the attached picture. To determine the formal charge of each element, the formula is as follows:
Formal Charge = Valence electrons - Non-bonding valence electrons - (Bonding electrons/2)
For the leftmost N:
Formal charge = 5 - 2 - 6/2 = 0
For the middle N:
Formal charge = 5 - 0 - 8/2 = 1
For O:
Formal charge = 6 - 6 - 2/2 = -1