Answer:
Concentrations:
1. 12 g salt in 3 L water = 0,4 g salt / 100 ml water
2. 12 g salt in 6 L water) = 0,2 g salt / 100 ml water
3. 30 g sugar in 5 L water) = 0,6 g sudar / 100 ml water
Explanation:
The given data are expressions to deal with the concentration of solutions (a kind of homogeneous mixtures).
There are many forms or units to express the concentrations of the mixtures.
The three cases show mass of solute (salt or sugar) in volume of solvent (water).
One form to express the concentration of the solutions is as mass of solute per 100 mililiters of solvent, which is useful to compare with solutibility tables.
You can do that using the formula:
- (mass of solute in grams / volume of solvent in mililiters) × 100.
To find the concentrations of the given solutions, first you need to convert the volume of the solvent to mililiters (ml):
- 3 L water × 1,000 ml / L = 3,000 ml water
- 6 L water × 1,000 ml / L = 6,000 ml water
- 5 L water × 1,000 ml / L = 5,000 ml water
Concentrations:
1. (12 g salt / 3,000 ml water) × 100 = 0,4 g salt / 100 ml water
2. (12 g salt / 6,000 ml water) × 100 = 0,2 g salt / 100 ml water
3. (30 g sugar / 5,000 ml water) × 100 = 0,6 g sugar / 100 ml water
Answer:
b) 7 degrees
Explanation:
The brain scanning techniques like CT and MRI have the reference lines like IOML or Infraorbitomeatal line and OML or Orbitomeatal line. These lines act as the standard reference during the CT techniques based on X-Rays.
The OML line passes through the centre of the external auditory meatus and the canthus of the eye whereas the line drawn between the external acoustic meatus to the infraorbital margin. These lines are used to adjust the positions of the cranium or the skull during the Radio-imaging process. The difference formed between these lines approximately lies between 7-8 degrees.
Thus, 7 degrees is the correct answer.
Answer:
The cell enters the interphase stage after completing the cell cycle. This stage is considered to be “resting” stage because the cell is at full maturity however, this accusation is incorrect. The cell enters the interphase stage instead and prepares to enter into mitosis.
Explanation:
interphase
Answer:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Answer:
2 out of 4 children will be female and not colourblind
1 out of 4 children will be male and not colourblind
1 out of 4 children will be male and colourblind