Answer:
508.8g
Explanation:
Mass of one mole= (12×12)+(24×1)+(2×12)
144+24+24=192g
Mass of 2.65 moles=192×2.65=508.8g
0.008 ÷ 51.3 = 0.0002
Sig Figs
1
0.0002
Decimals
4
0.0002
Scientific Notation
2 × 10-4
E-Notation
2e-4
Words
zero point zero zero zero two
I HOPE I HELP
Answer:
The Rf value of the compound is 0.33
Explanation:
Rf value is known as the retention factor value. It is commonly used in paper chromatography and thin layer chromatography for comparing and analyzing different substances. The retention factor (Rf) value is the ratio of the distance moved by a substance from the origin to the distance moved by the solvent front from the origin. The Rf value ranges from 0 to 1.
Rf = Distance the substance moved / Distance the solvent front moved
From the question,
Distance the substance (compound) moved = 20 millimeters
Distance the solvent front moved = 60 millimeters
Hence,
Rf = 20 millimeters / 60 millimeters
Rf = 0.33
Hence, the Rf value of the compound is 0.33.
It will either be B or D, but I don't know about burial.
<u>Answer:</u> The correct answer is Option c.
<u>Explanation:</u>
Weak acid is defined as the acid which does not get completely dissociated into its ions when dissolved in water. For Example: etc..
Strong acid is defined as the acid which gets completely dissociated into its ions when dissolved in water. For Example: etc..
Weak base is defined as the base which does not get completely dissociated into its ions when dissolved in water. For Example: etc..
Strong base is defined as the base which gets completely dissociated into its ions when dissolved in water. For Example: etc..
From the above information, it is clearly visible that the correct answer is Option c.