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
allsm [11]
3 years ago
11

What is the partial pressure of argon, par, in the flask? express your answer to three significant figures and include the appro

priate unit?
Chemistry
1 answer:
monitta3 years ago
3 0
Given which are missing in your question:
the flask is filled with 1.45 g of argon at 25 C° 
So according to this formula (Partial pressure):
PV= nRT
first, we need n, and we can get by substitution by:
n =  1.45/mass weight of argon
   = 1.45 / 39.948 = 0.0363 mol of Ar
we have R constant = 0.0821
and T in kelvin = 25 + 273 = 298
and V = 1 L
∴ P * 1 = 0.0363* 0.0821 * 298 = 0.888 atm

You might be interested in
Grady is doing an experiment about the solubility of sugar. He puts 100 milliliters of water in each of three beakers. He leaves
olga nikolaevna [1]

Grady is doing an experiment about the solubility of sugar. He puts 100 milliliters of water in each of three beakers. He leaves the first beaker at room temperature, heats the second beaker to 60°C, and heats the third beaker until the water boils at 100°C. The variable Grady change on  purpose in the experiment is the temperature of water in each beaker .

Variables in the experiment is the any factor that can exist in different types or amount. There are three types of variables: independent variable , dependent variable , controlled variable. The independent variable is the variable you changed in the experiment. dependent variable is that changes because of independent variable. the controlled variable is the constant one.

Thus, Grady is doing an experiment about the solubility of sugar. He puts 100 milliliters of water in each of three beakers. He leaves the first beaker at room temperature, heats the second beaker to 60°C, and heats the third beaker until the water boils at 100°C. The variable Grady change on  purpose in the experiment is the temperature of water in each beaker .

To learn more about variables here

brainly.com/question/17344045

#SPJ1

8 0
1 year ago
A 80.0 g piece of metal at 88.0°C is placed in 125 g of water at 20.0°C contained in a calorimeter. The metal and water come to
grandymaker [24]

Answer:

The specific heat of the metal is 0.485 J/g°C

Explanation:

<u>Step 1:</u> Data given

Mass of the piece of metal = 80.0 grams

Mass of the water = 125 grams

Initial temperature of the metal = 88.0 °C

Initial temperature of water =20.0 °C

Final temperature = 24.7 °C

pecific heat of water is 4.18 J/g*°C

<u>Step 2:</u> Calculate specific heat of the metal

Qgained = -Qlost

Q =m*c*ΔT

Qwater = - Qmetal

m(water)*c(water)*ΔT(water) = -m(metal)*c(metal)*ΔT(metal)

with mass of water = 125 grams

with c( water) = 4.18 J/g°C

with ΔT(water) = T2-T1 = 24.7 - 20 = 4.7°C

with mass of metal = 80.0 grams

with c(metal) = TO BE DETERMINED

with ΔT(metal) = 24.7 - 88.0 = -63.3 °C

125*4.18*4.7 = -80 * C(metal) * -63.3

2455.75 = -80 * C(metal) * -63.3

C(metal) = 2455.75 / (-80*-63.3)

C(metal) = 0.485 J/g°C

The specific heat of the metal is 0.485 J/g°C

3 0
3 years ago
Dimitri Mendeleev organized an early version of the Periodic Table in order of increasing __________.
omeli [17]

c) Atomic Mass.

Hope it is helpfull


6 0
3 years ago
Distinguish between atom molecules, and ions
NNADVOKAT [17]

Explanation:

Atoms are the smallest unit of matter that can't be broken down chemically. Molecules are groups of two or more atoms that are chemically bonded. Ions are atoms or molecules that have gained or lost one or more of their valence electrons and therefore have a net positive or negative charge.

7 0
3 years ago
Which of these types of changes is a physical change?
Cloud [144]

Answer:

answer is c

Explanation: cause there breaking it

8 0
2 years ago
Other questions:
  • Which expression is equal to the number of milliliters(mL)in 12.5 liters(L)?
    7·2 answers
  • What may be expected when K &gt; 1.0?
    7·2 answers
  • What might be a good metaphor for this statement? All the birds get fed when the corn gets crushed
    6·1 answer
  • An example of an extensive property of matter is?<br>temp<br>pressure<br>mass<br>hardness
    9·1 answer
  • What is Sublimation?-.-​
    15·1 answer
  • How many grams are in 2.4 moles of calcium chloride
    6·1 answer
  • Pls 50 points right answer gets brainliest
    6·2 answers
  • How much energy is required to heat 2kg of ice from -5°c to 0°c
    11·1 answer
  • Chemistry: how does temperature relate to kinetic energy? pls answer in a short and easy way :D
    14·2 answers
  • What is the ATOMIC NUMBER for an element with 5 protons, 6 neutrons and 2 electrons?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!