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
Kaylis [27]
3 years ago
6

Can you guys please help me out

Chemistry
1 answer:
docker41 [41]3 years ago
8 0

Answer:

Explanation:

4 = Given data:

Initial volume = 400 mL

Initial pressure = 450 torr

Initial temperature = 210 K

Final temperature = ?

Final volume = 1500 mL

Final pressure = 800 torr

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

P₁V₁/T₁ = P₂V₂/T₂  

T₂   =  P₂V₂ T₁/ P₁V₁

T₂   =  800 torr × 1500 mL × 210 K / 450 torr × 400 mL

T₂   =  252000,000 K / 180000

T₂   = 1400 K

5 = Given data:

Initial volume of gas = 4.5 L

Initial temperature = 25°C (25 + 273 = 298 k)

Final temperature = 25°C×3= 75°C (75+273 = 348 k)

Final volume = ?

Solution:

V₁/T₁  = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁  = V₂/T₂

V₂ = V₁T₂/T₁

V₂ = 4.5 L × 348 K / 298 k

V₂ = 1566 L.K / 298 K

V₂ = 5.3 L

Extra credit:

Given data:

Initial volume = 356 cm³ or 356 mL

Initial pressure = 105000 pa

Initial temperature = 23 °C

Final temperature = ?

Final volume = 560 dL

Final pressure = 36 psi

Formula:  

Final volume = 560×100 = 5600 mL

Initial temperature = 23 °C ( 273 + 23 = 296 K)

Final pressure = 36 × 6895 = 248220 Pa

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

P₁V₁/T₁ = P₂V₂/T₂  

T₂   =  P₂V₂ T₁/ P₁V₁

T₂   =   248220 Pa × 5600 mL × 296 K /105000 pa × 356 mL

T₂   =  411449472,000 K / 37380000

T₂   = 11007.21 K

You might be interested in
Every pure substance has exact and specific density. What are two purposes that a chemist would use a calculated density for.
adell [148]

Answer:

1. Density can be used to identify a substance

2. Density can be used to ascertain whether a substance will float in water.

Explanation:

The calculation of the density of a substance can be used to identify the substance. If the density of a substance is calculated accurately, and compared with a table of standard densities, then we can identify that substance.

Also, density determines whether an object will float or sink in water. If an object is less dense than water then it will float in water. If it is denser than water, then it will sink in water.

7 0
4 years ago
Jupiter, Saturn, Uranus, and Neptune are a known as ____.
neonofarm [45]

The outer planets of the solar system that are known as Gas Giants

4 0
3 years ago
Consider the following reaction:
Goshia [24]

Answer:

2.01

Explanation:

First, let's convert grams to moles

(Na) 22.99 + (F) 18.998 = 41.988

Every mole of NaF is  41.988 grams

21/41.988 = 0.500143 moles of NaF

For every Cr+3, we will need 2 NaF, so Cr+3 will be half of NaF

0.500143/2 = 0.250071

molarity = moles/liters

0.250071/0.125 = 2.0057 M

3 0
3 years ago
A cylinder is filled with 10.0L of gas and a piston is put into it. The initial pressure of the gas is measured to be 96.0kPa. T
Norma-Jean [14]

Answer:

The final pressure of the gas is:- 21.3 kPa

Explanation:

Using Boyle's law  

{P_1}\times {V_1}={P_2}\times {V_2}

Given ,  

V₁ = 10.0 L

V₂ = 45.0 L

P₁ = 96.0 kPa

P₂ = ?

Using above equation as:

{P_1}\times {V_1}={P_2}\times {V_2}

{96.0\ kPa}\times {10.0\ L}={P_2}\times {45.0\ L}

{P_2}=\frac {{96.0}\times {10.0}}{45.0}\ kPa

{P_2}=21.3\ kPa

The final pressure of the gas is:- 21.3 kPa

3 0
3 years ago
How many mol of hydrogen in 2.8 mol of caffeine.
pochemuha
Empirical formula of caffeine is C₈H₁₀N₄O₂.

In 1 mol of caffeine we have 10 mol of hydrogen.
In 2,8 mol of caffeine we have x mol of hydrogen.

x = 2,8 mol * 10 mol / 1 mol = 28 mol

ANSWER: There are 28 mol of hydrogen.

:-) ;-)
5 0
4 years ago
Read 2 more answers
Other questions:
  • How much heat should be transferred when 38.2g of liquid brownie reacts with excess hydrogen gas to form hydrogen bromine? Is th
    14·1 answer
  • Identify the type of reaction, write the products with phases, and balance. Show all work.
    7·1 answer
  • a r. tank contains H. initially at 100 kn/m2 and 20°C. 1 1/2 kg of H added so that t2 and p of the tank is 30°C and 250 kpa, Det
    13·1 answer
  • 1. The mass of 6.45 x 1022 atoms C​
    8·1 answer
  • Why is the moon called a pink moon if that is not really its color?
    8·1 answer
  • How many grams of H2 are needed to react with 47 grams of N2 to produce 200 grams of NH3?
    9·1 answer
  • Mixture formation is a ________change.​
    6·1 answer
  • Discuss your opinions and attitude towards biodiversity and the health of ecosystems. Is biodiversity something that your person
    15·2 answers
  • What is the acceleration of 1 m/s?
    13·2 answers
  • in the titration of naoh with vinegar, a student forgot to condition the buret, and it was wet with deionized water before filli
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!