What is the value of the charge on an ion with 28 protons and 26 electrons?
1 answer:
You might be interested in
Answer:
38.3958 °C
Explanation:
As,
1 gram of carbohydrates on burning gives 4 kilocalories of energy
1 gram of protein on burning gives 4 kilocalories of energy
1 gram of fat on burning gives 9 kilocalories of energy
Thus,
27 g of fat on burning gives 9*27 = 243 kilocalories of energy
20 g of protein on burning gives 4*20 = 80 kilocalories of energy
48 gram of carbohydrates on burning gives 4*48 = 192 kilocalories of energy
Total energy = 515 kilocalories
Using,
Given: Volume of water = 23 L = 23×10⁻³ m³
Density of water= 1000 kg/m³
So, mass of the water:
Mass of water = 23 kg
Initial temperature = 16°C
Specific heat of water = 0.9998 kcal/kg°C
Solving for final temperature as:
<u>Final temperature = 38.3958 °C </u>
Answer:
c)Hypertonic solutions have a higher osmotic pressure than that within cells so crenation can occur.
Explanation:
When giving solutions to a patient, we must be careful about the situation because giving an isotonic or a hypertonic solution can be the difference between life or death.
If the person is dehydrated, and we administer an hypertonic solution, the result will be the death, because a hypertonic solution (high concentration of electrolytes) <u>can actually dehydrate the cells,</u> they will lose water by osmosis,<em> because the osmotic pressure is higher outside</em> and water will start to flow from a low concentration state to high concentration state, trying to equilibrate the medium, as we can see in the image below.
