Sodium is not a macromolecule hence it does not contain any calories.
<h3>Does sodium contain calories?</h3>
The term calorie is a unit of energy. We often us the term to describe the amount of energy that is contained in each kind of food. The higher the calories, the greater the energy that the food contains.
Calories can only be contained by macromolecules such as proteins, carbohydrates, fats etc. Sodium is not a macromolecule hence it does not contain any calories at all hence the classmate is wrong.
Learn kore about calories:brainly.com/question/22374134
#SPJ1
Answer:
0.2762M Na+ in the solution
Explanation:
<em>2.07g of sodium iodide Is Dissolved In 50.ML Of A 0.30M...</em>
To solve this question we need to find the moles of sodium iodide, NaI, that are the same than the moles of sodium cation, Na+. The volume in liters of the solution is 0.050L. The molarity is:
<em>Moles NaI = Moles Na+ -Molar mass NaI: 149.89g/mol-</em>
2.07g NaI * (1mol / 149.89g) = 0.01381 moles NaI<em> = Moles Na+</em>
Molarity:
0.01381 moles Na+ / 0.0500L =
0.2762M Na+ in the solution
Answer:
656,25 moles of CH3OH
Explanation:
If the mixture has 7% of weight in methanol (CH3OH), it means that for every 100 kg of the mixture there are 7 kg of methanol.
To solve the problem we just use this relation and convert the kilograms of methanol to gmoles of methanol using the molecuar weight of the methanol (32g/mol):
Answer:
0.30M HOAc
Explanation:
Given 250.0ml (0.96M HOAc) => 800ml(??M HOAc)
Use the dilution equation...
(Molarity x Volume)concentrated soln = (Molarity x Volume)dilute soln
(0.96M)(250.0ml) = (Molarity diluted soln)(800ml)
Molarity diluted soln = (0.96M)(250.0ml)/(800ml) = 0.30M HOAc
The answer is that they are a source of clean energy. This is because the renewable resources do not produce environmentally hazardous emissions during the production of energy.