Answer:
The provided question is incomplete as it lack essential information and the option however the complete question with correct option are given below:
<em>Egg provides 400 mg of methionine per 100 g of weight.
</em>
<em>The meal that the scientists provided the volunteers at t = 10 hours contained five eggs weighing 500 g each. Approximately how much methionine was served to each volunteer? A. 10 mg
, B. 1 x 104 mg, C. 3 x 104 mg
, D. 6.25 x 105 mg</em>
The correct answer is option B. 1 x 104 mg.
Explanation:
This question is provided the information that an egg gives 400 mg/100 g of the weight. One can calculate methionine that was served to the volunteers as given below:
So, an egg provides 400 mg of methionine per 100 g of weight.
5 eggs = 500 g each weighs in at 2.5 kg total (5 egg x 500 g/egg = 2,500 g).
2,500 g x (400 mg Met/100 g weight) = 10,000 mg = 1.0 x 104 mg
Thus, the correct answer is option B. 1.0 x 104 mg.
Correct option D -COOH
Carboxylic acid example - Acetic acid
It's formula is CH3COOH
It has functional group -COOH
So it's D
Hope This Helps You!
Answer:
Percent yield = 90.5%
Explanation:
Given data:
Mass of carbon dioxide = 500 g
Mass of water = excess
Actual yield of carbonic acid = 640 g
Percent yield = ?
Solution:
Balanced chemical equation:
CO₂ + H₂O → H₂CO₃
Number of moles of carbon dioxide
Number of moles = Mass / molar mass
Number of moles = 500 g/ 44 g/mol
Number of moles = 11.4 mol
Now we will compare the moles of H₂CO₃ with CO₂.
CO₂ : H₂CO₃
1 : 1
11.4 : 11.4
Mass of carbonic acid:
Mass = number of moles × molar mass
Mass = 11.4 mol × 62.03 g/mol
Mass = 707.14 g
Percent yield:
Percent yield = actual yield / theoretical yield × 100
Percent yield = 640 g/ 707.14 g × 100
Percent yield = 90.5%
<u>Answer:</u> The spacecraft traveled 345 km during the given time.
<u>Explanation:</u>
To calculate the distance of spacecraft, we use the equation:
We are given:
Velocity = 2.3 km/sec
Time = 2.5 mins = 150 sec (Conversion factor: 1 min = 60 sec)
Putting values in above equation, we get:
Hence, the spacecraft traveled 345 km during the given time.
Answer:
u = 9,95x10⁻²⁷ kg
Explanation:
The reduced mass is defined as the effective inertial mass appearing in the two-body problem of Newtonian mechanics.
The formula is:
As the mass of the carbons is 1,99x10⁻²⁶ kg:
<em>u = 9,95x10⁻²⁷ kg</em>
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I hope it helps!