Myoglovin, a protein that stores oxygen, has a mass of 2.98 x 10-4____
Would it be milligram, gram or kilogram?
I don't know the context in which this is used (and I assume you made a typo and are talking about myoglobin) but I don't think any one of those units you suggested is correct. From what I could find in Wikepedia, the molar mass is about 16,700; therefore, one molecule would have a mass of about 2.78 x 10^-20 g.
this is a science question on my daughters homework. The question reads: Myoglobin, a protein that stores oxygen, has a mass of 2.98 x 10 -14_______.
micrograms
Milligram
micrograms
Myoglovin, the incredible oxygen-storing protein, has a mass of 2.98 x 10-4 kilogram! That's right, kilogram! It may be a small amount, but it packs an oxygen-filled punch! So, make sure you don't underestimate this puny protein's weight. Kilogram is the way to go, my friend!
To determine the appropriate unit for the mass of myoglobin, let's start by looking at the given number, which is 2.98 x 10^(-4).
The exponent -4 indicates that the value is in scientific notation, where the number should be multiplied by 10 raised to the power of -4. When we do that, we get 0.000298.
Next, we examine the magnitude of the number. 0.000298 is a smaller value, so we generally prefer to use smaller units for measurement.
In this case, we can use milligrams (mg), which is a smaller unit of measurement than grams (g) or kilograms (kg).
Therefore, the appropriate unit for the mass of myoglobin would be milligrams (mg).