Distance covered in 12 minutes = 18 km, now
Unit rate is equal to :
The train travels 1.5 km in 1 minute time interval.
A. Correct answer I think
Answer: 1) A. It is the site of photosynthesis, where glucose is produce.
2) C. The large vascuole is like a water-filled balloon. When the plant is water-stressed, the water leaves the vacuole and the cells shrink.
Answer:
0.074
Explanation:
15% means that in 100 g of solution 15 g sodium hydroxide is present.
Mass of water = 100 - 15 = 85 g
Number of moles of sodium hydroxide:
Number of moles = 15 g/40 g/mol
Number of moles = 0.375 mol
Number of moles of water:
Number of moles = 85 g/18 g/mol
Number of moles = 4.7 mol
Moles fraction of NaOH:
moles of NaOH/ moles of solvent + moles of solute
0.375 mol/ 0.375 mol+4.7mol
0.375 mol / 5.075 mol
0.074