<span>23.8 g/mol
Since the definition of molar mass is mass per mole, just divide the mass of the sample by the number of moles you have. So
0.250 g / 1.05x10^-2 mol = 23.8095 g/mol
Since our input data only has 3 significant figures, you need to round the result to 3 significant figures.
23.8095 g/mol rounds to 23.8 g/mol</span>
Answer:
(b) amino group
e) carboxyl group
Explanation:
The functional group in an organic compound distinguishes it from other compounds. It is usually the site where chemical reactions takes place.
CH₃-HC(NH₂)-COOH
There are two functional groups in this organic compoud:
- The NH₂ group is called the amino group
- The COOH is a carboxyl group
Radiowave, microwave, infrared radiation
Answer:
Explanation:
Density is m/V. Also, 1 liter = 1000 
. So, we get 0.890/(5*1000) = 
g/cm^3. You can convert this to kg/m^3 as well by multiplying it by 10. Depends which one you want.
The answer is D. Ne, which stands for Neon.
