Explain the units and how to solve the following metric conversion then solve the metric conversion by filling in the blank 12KM
1 answer:
Answer:- 12 km = 12000 m
Solution:- It's a metric unit conversion where we are asked to convert 12 km to m where km stands for kilometer and m stands for meter.
In metric conversions, kilo means 1000.
So, 1 km = 1000 m
It means, we multiply the given km by 1000 to get the answer in m as:
= 12000 m
Hence, 12 km = 12000 m.
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<u>Answer:</u> The number of molecules of ethinyl estradiol present in one pill are
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
Given mass of ethinyl estradiol = 0.038 mg = (Conversion factor: 1 g = 1000 mg)
Molar mass of ethinyl estradiol
Putting values in above equation, we get:
According to mole concept:
1 mole of a compound contains number of molecules
So, of ethinyl estradiol will contain =
number of molecules
Hence, the number of molecules of ethinyl estradiol present in one pill are