Explanation:
It will have to change its form in order for the cell to focus on developing and retaining a viable, in order to be large and narrow as in the situation of the nerve cells or to build a more 'contoured' surface, that is, to establish microvillus.
The original or accepted value for the percent by mass of water in a hydrate = 36%
Percen by mass of water in the hydrate determined by the student
in the laboratory = 37.8%
So the difference between the actual and the percent by mass in water determined by student = (37.8 - 36.0)%
= 1.8%
So the percentage of error made by the student = (1.8/36) * 100 percent
= (18/360) * 100 percent
= ( 1/20) * 100 percent
= 5 percent
So the student makes an error of 5%. Option "1" is the correct option.
Answer:
Volume = 44.96L
Explanation:
p = 427mmHg = 0.56atm
R = 0.08206
T 6°C = 279k
V = ?
n = 1.10 mol
using ideal gas equation
pv=nRT
0.56 x V = 1.10 x 0.08206 x 279
0.56 x V = 25.18
V = 25.18/0.56
V = 44.96L
Answer:
1. Litres
2. minutes
3. Kelvin (K)
4. Kilometer/hour
5. hours
6. Litre
7. metre
8. metre
9. Litres
10. milliliters
Explanation:
1. Coca-Cola is a liquid substance, hence, its volume must be measured in LITRES.
2. This question is related to time I.e. being early, hence, the unit of measurement is MINUTES.
3. The unit of temperature is Kelvin (K). Therefore, water boils at 373K
4. This question is related to speed, whose unit of measurement is kilometer/hour (km/hr).
5. A movie runs with time, which is measured in HOURS.
6. Mineral water is a liquid, which can only be bought per volume. Hence, the appropriate unit is LITRE.
7. Height is measured in metres (m). Therefore, one can say that " the height of your younger brother is 10metres"
8. The length of a substance is also measured in metres.
9. Volume is measured in LITRES
10. Cough syrup is a drug whose volume is quantified by millilitres i.e. a thousandth litre
The reaction equation represents the mole number ratio. So the hydrogen is 8/2=4 mol. Oxygen is 64/32=2 mol. So the water is 4 mol. The mass of water is 4*18=72 g. Or if it is confirmed that they are completely reacted. You can simply add them up.
