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
Effectus [21]
3 years ago
9

Reading the Temperature of Thermometers

Chemistry
1 answer:
Anna71 [15]3 years ago
3 0

Answer:37.0,42.5

Explanation:

You might be interested in
A steel cylinder has a pressure of 550 torr at 177 degrees Celsius. What will be the pressure if the temperature is decreased by
storchak [24]

Answer:

270.34

Explanation:

pressure, 550                pressure, 270.34

______________   =   ___________

177 degree celsius.        87 degree celsius.

550 x 87 / 177 = 270.34

8 0
2 years ago
A 25.0 g piece of aluminum (which has a molar heat capacity of 24.03 J/mol°C) is heated to 86.4°C and dropped into a calorimeter
Ira Lisetskai [31]

Answer:

m H2O = 56 g

Explanation:

  • Q = mCΔT

∴ The heat ceded (-) by the Aluminum part is equal to the heat received (+) by the water:

⇒ - (mCΔT)Al = (mCΔT)H2O

∴ m Al = 25.0 g

∴ Mw Al = 26.981 g/mol

⇒ n Al = (25.0g)×(mol/26.981gAl) = 0.927 mol Al

⇒ Q Al = - (0.927 mol)(24.03 J/mol°C)(26.8 - 86.4)°C

⇒ Q Al = 1327.64 J

∴ mH2O = Q Al / ( C×ΔT) = 1327.64 J / (4.18 J/g.°C)(26.8 - 21.1)°C

⇒ mH2O = 55.722 g ≅ 56 g

5 0
3 years ago
Write the condensed formula from left to right, starting with (CH3)x where x is a number.
pochemuha

Complete question:

Write the condensed formula from left to right, starting with (CH3)x where x is a number.

See attached image for the structure formula of the compound

Answer:

(CH₃)₂CHC(CH₃)₃ named as 2,2,3-Trimethylbutane

Explanation:

If we number the longest chain of the carbon starting from the left, we will observe that there are four carbons in the straight chain as shown in the image.

Starting from first carbon from the left of the carbon chain, at carbon number number 2, there two alkyl group, that is two methyl (CH3 is two). Also at carbon number 3, there are three alkyl group, that is three methyl (CH3 is three).

The condensed formula will be written as;

(CH₃)₂CHC(CH₃)₃

This compound is named as 2,2,3-Trimethylbutane, an isomer of Heptane

3 0
3 years ago
Making models involves creating representations of complex objects or processes to help people study and understand things that
swat32
Somewhat false
observations can be made of a model of the statue of liberty, say, or in real line
6 0
3 years ago
Elements in the first column of the periodic table belong to the alkali family. Name the alkali metals.
Makovka662 [10]
Lithium, sodium, potassium, rubidium, cesium, and francium
6 0
2 years ago
Other questions:
  • Determine the freezing point of an aqueous solution containing 10.50 g of magnesium bromide in 200.0 g of water.
    11·1 answer
  • Physical properties are :
    10·1 answer
  • Why is water clarity an important measure of water quality?
    11·1 answer
  • 1. Convert 67500 mg to the unit hg
    7·1 answer
  • Which is a TRUE statement about salt water?
    12·2 answers
  • What kind of solid tends to have the lowest melting points?
    5·1 answer
  • which energy source do you think has or could have the greatest positive impact on earth? explain your answer
    12·2 answers
  • Which reaction is reversible and could reach dynamic equilibrium?
    12·2 answers
  • ¿Como pasar 254 meses a minutos?<br> Por favor ayudaaa!! <br> Le doy corona a la respuesta
    13·1 answer
  • Ammonia and hydrogen fluoride both have unusually high boiling points due to
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!