Answer: The mass of the sample having 2.1 kg of will be
Explanation: We are given a sample of sodium bicarbonate having mass 2.1 kg
To convert this into nano-grams, we use the following conversions:
1 kg = 1000 grams
and
Converting 2.1 kg to nano-grams using above conversions:
Answer:
8.18 M
Explanation:
The osmotic pressure (π) is a colligative property that can be calculated using the following expression.
π = M . R . T
where,
M: molarity
R: ideal gas constant
T: absolute temperature
The absolute temperature is 25 + 273 = 298 K.
The osmotic pressure (in atm) is:
π = M . R . T
200 atm = M . (0.08206 atm.L/mol.K) . 298 K
M = 8.18 mol/L
Answer:
6060 moles
Explanation:
3.65x10^27 atoms *( 1 mol/6.02*10^23 atoms)= 6063 moles ≈ 6060 moles
Answer:
C) non renewable resources
Explanation:
These are resources such as oil that are formed over a long period of time but are consumed very quickly.