Cell theory states that all the living organisms are made up of basic structural and functional units, cells. All cells divide and give rise to new cells. All the cells have similar chemical composition. The nuclei acid DNA present in the chromosomes helps in carrying hereditary information from generation to generation. So, in order to sustain life the cells must contain DNA either enclosed in the nucleus or freely floating in the cytoplasm.
383 mL of 3.50 M muriatic acid solution
Explanation:
First we calculate the number of moles of HCl:
number of moles = mass / molecular weight
number of moles of HCl = 47.7 / 35.5 = 1.34 moles
Now to determine the volume of the 3.50 M muriatic acid (clorhidric acid) solution, we use the following formula:
molar concentration = number of moles / volume (L)
volume (L) = number of moles / molar concentration
volume of the muriatic acid solution = 1.34 / 3.5 = 0.383 L = 383 mL
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molar concentration
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Answer: 7.608 x 10∧23
Explanation:
Using Avogadro's Number;
1 mole of Phosphorus (P4) molecule contains 6.02 x 10∧23 molecules.
∴ 0.316 mole of Phosphorus (P4) will contain; 0.316 x 6.02 x 10∧23 =
1.902 x 10∧23 molecules.
1 molecule of Phosphorus (P4) is made up of 4 atoms.
∴ 1.902 x 10∧23 molecules Phosphorus (P4) will contain :
1.902 x 10∧23 x 4 = 7.608 x 10∧23 atoms
0.316 mole of phosphorus contains 7.608 x 10∧23 atoms.
(a) at the bottom - high density organic compound dissolved in methylene chloride
(b) at the bottom - saturated aqueous sodium chloride
Explanation:
Sodium chloride is dissolved in water while the organic compounds are dissolved in methylene chloride. After mixing the two solutions two layers will form because water (polar molecule) will not mix with the methylene chloride (nonpolar molecule).
The layer with higher density will be at the bottom.
(a) saturated aqueous sodium chloride (d = 1.2 g/mL) - upper layer
high density organic compound dissolved in methylene chloride (d = 1.4 g/mL) - bottom layer
(b) saturated aqueous sodium chloride (d = 1.2 g/mL) - bottom layer
low density organic compound dissolved in methylene chloride (d = 1.1 g/mL) - upper layer
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liquids with different densities
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I think the answer is genotype.
