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What is the formula of the percentage by mass and volume?
Percentage by Mass = Mass of substance of interest/Total Mass Percentage by Volume = Volume of substance of interest/Total Volume Converting from one to the other requires information about their relative densities.
What is the formula of the percentage by mass and volume with diffinition?
The percentages refer to the amount of a substance of interest that is contained in a compound or mixture of that and other substances. Percentage by mass = 100*mass of substance of interest/total mass. Percentage by volume = 100*volume of substance of interest/volume mass. And, incidentally, the word is definition, not diffinition.
Haemoglobin in percentage?
In percentage of what in what species, or objects. It is 0% in water! The percentage will depend on what the denominator is. there will be a huge difference between haemoglobin as a percentage of total blood or percentage of total body mass. Also it will vary: people living at high altitudes tend to have higher concentrations.
What is the mass percentage of 02?
It is zero. The number 02 is a number. It is a concept and no physical existence and no mass. So the mass percentage is zero.
What is meant by the mass mass percent concentration of a solution?
This is (mass of solute) divided by (mass of total solution) expressed as a percentage. The solute is what you are dissolving into the solution. Example: you have 90 grams of water, and you add 10 grams of salt (sodium chloride). The water is the solvent, sodium chloride is the solute, and the solution is salt water. 90 grams + 10 grams = 100 grams (mass of total solution). (10 grams) / (100 grams) = 0.1 --> 10% mass mass percent concentration.
The human cerebral cortex accounts for what percentage of the total mass of the brain?
The human cerebral cortex accounts for about 80% of the total brain mass. It is responsible for higher brain functions such as thinking, memory, and voluntary movement.
Why is the human cerebellum is split in half while the sheep cerebellum is one mass?
The human cerebellum is split in half while the sheep cerebellum is one mass for a few reasons. This is because the human brain is more complex.
How many neurons does the cerebellum have?
How many neurons does the cerebellum have? This is an interesting question. Of the sources I have reviewed thus far, I have not found a consistent approximation of neurons in the cerebellum. The human brain has (estimate) 100 billion neurons. Some sources say 10-100 billion. According to Wikipedia, the cerebellum takes up 10% of the brain's total volume and contains roughly 50% of all the neurons in the brain. In that case, 50 billion neurons in the cerebellum. However, in the book I'm currently reading, it has suggested that the cerebellum neuron count is more like 70 billion. Therefore, the cerebrum (rest of the brain) has the remaining 30%. Interesting isn't it? Such a small structure contains majority of the brain's neurons. Additionally, the cerebellum has Purkinje cells, which are among the largest neurons in the brain. According to Wikipedia, Granule cells (very tiny neurons) are very numerous in the cerebellum which are accountable for the mass % of neurons in this particular cortex. Hope I have helped you! However, take note that to some people Wikipedia is not a valid source. To me it's reliable in some circumstances. The book I'm reading now was written by an M.D so I feel that is more reliable, so I'll go ahead and say that the cerebellum has (estimate) 60-70 billion neurons.
What is the formula of the percentage by mass and volume?
Percentage by Mass = Mass of substance of interest/Total Mass Percentage by Volume = Volume of substance of interest/Total Volume Converting from one to the other requires information about their relative densities.
HOW DO I CALCULATE THE PERCENTAGE BY MASS OF ETHANOL IN A MIXTURE?
First, determine the mass of ethanol in the mixture by dividing the mass of ethanol by the total mass of the mixture. Then, multiply the result by 100 to get the percentage by mass of ethanol in the mixture. For example, if a mixture contains 20g of ethanol in a total mass of 100g, the percentage by mass of ethanol would be (20g / 100g) * 100 = 20%.
How does the total mass percentage of alkaline earth metal ions compare with the total mass percentage of alkaline metal ions?
The total mass percentage of alkaline earth metal ions is higher than that of alkaline metal ions in a compound since alkaline earth metals have a higher atomic mass compared to alkali metals. This means that alkaline earth metals contribute more to the total mass of the compound when present as ions.
What is the percentage of a mixture homogeneous?
The percentage of a homogeneous mixture is the proportion of each component in the total mixture, expressed as a percentage of the total mass or volume. This can be calculated by dividing the mass (or volume) of each component by the total mass (or volume) of the mixture, and then multiplying by 100.
Do the cerebral hemispheres account for about 83 percent of total brain mass?
No, the cerebral hemispheres account for about 85-90% of the total brain mass. They are the largest part of the brain and are responsible for higher brain functions such as memory, reasoning, and emotions.
Why is the sheep cerebellum is one mass?
Human cerebellums are divided to be able to multitask, as are some other orders of higher primates. The sheep cerebellum is one mass, due to the fact that a sheep is unable to multitask.
What is the equation to find the percentage by mass of an element if the total mass of the compound and the mass contribution of the element are known?
Amount of mass of component Y divided by total mass times 100% equals (=) percent (%) Y component.
What is the mass percent composition of an element in a compound?
The mass percent composition of an element in a compound is the percentage of the total mass of the compound that comes from that specific element. It is calculated by dividing the mass of the element by the total mass of the compound and multiplying by 100.
What is the definition of percent composition?
Percent composition is the percentage by mass of each element in a compound. It is calculated by dividing the mass of each element in the compound by the total molar mass of the compound and then multiplying by 100 to get the percentage.
