1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
netineya [11]
3 years ago
5

!: (a) 20 cm: 80

Chemistry
1 answer:
RoseWind [281]3 years ago
5 0

Answer:

THE LENGTH OF THE AIR COLUMN IS 9.5 CM

Explanation:

Taking the atmospheric pressure to be 760 mmHg;

When the capillary tube is held horizontally, the pressure of the tube is 760 mmHg

when the capillary tube is held vertically, the pressure increases by 4 cm = 40 mm

The new pressure of the tube is hence, 760 + 40 mmHg = 800 mmHg

Using the pressure forlmula;

P1 V1 = P2 V2

P1 A1 L1 = P2 A2 L2

where A1 and A2 is the area of the capillary tube and it is equal, it cancels out.

P1 l1 = P2 l2

l2 = P1 l1 / P2

l2 = 760 * 10 / 800

l2 = 9.5 cm

The length of the air in the tube is 9.5 cm.

You might be interested in
Which statement best describes the general relationship between stream velocity and the size of the sediment particles transport
Stells [14]
I think that the answer is 4, but i dont know

3 0
3 years ago
How do you calculate the number of neutrons in atom
Nostrana [21]

Answer:

Yes, it is standard for each element. You can calculate it from the formula: n=A-Z, where n is the number of neutrons, A is the atomic mass and Z is the atomic number.

3 0
3 years ago
A sample of gas in a balloon has an initial temperature of 37C and a volume of 1560 L. If the temperature changes to 82C , and t
FromTheMoon [43]

Answer:

First part: The new volume of the gas is 1786 Liters.

Second part: The temperature required to change the volume of the gas sample is 347 °C

Explanation:

We assume the Charles - Gay Lussac law where, in constant pressure, volume of a gas changes directly proportional to Temperature (in Kelvin)

V1 / T1  = V2/T2

37°C + 273 = 310 K

82°C + 273 = 355 K

1560L / 310°K = V2 / 355K

(1560 / 310) . 355 = V2

1786 L = V2

1560 L / 310 K = 3120 L / T2

T2 = 3120 L . (310 K / 1560 L)

T2 = 620 K

620K - 273 = 347°C

6 0
3 years ago
___ is when water changes from gas directly to a solid
aivan3 [116]

Deposition is your answer

8 0
3 years ago
Read 2 more answers
When your finger turns green from that new ring you bought ....what is happening?
Troyanec [42]

Answer:

Your  ring may be fake

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • An object was measured by a worker as 14.6 cm long, however, the manufacturer specifications list the length of the object at 14
    9·1 answer
  • In order for a chemical reaction to take place, a certain amount of _____________ must be present. A. heat B. friction C. chemic
    13·2 answers
  • Which term best describes the element lanthanum? nonmetal inner transition metal transuranium radioactive
    15·1 answer
  • Trace the process of water treatment.
    13·2 answers
  • When given a compound, adding up all of the _______ of all of the individual atoms within one molecule of a compound will determ
    8·2 answers
  • What is the volume of 0.200 mol of an ideal gas at 200 kPa and 400 K? A. 0.83 L B. 3.33 L C. 5.60 L D. 20.8 L
    12·2 answers
  • What is the maximum amount of NaCl that can dissolve in 300 g of water? (the solubility of NaCl is 36.2 g/100 g H2O at 20 ⁰C.) p
    8·1 answer
  • 1 point
    5·1 answer
  • Which methods could be used to dilute a solution of sodium chloride
    13·1 answer
  • Specify the number of possible isomers of bromodimethylbenzene. 6 Write the name of one of these isomers. Abbreviate ortho (o),
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!