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
Vaselesa [24]
3 years ago
7

A 5.0-L sample of sulfur hexafluoride (SF6) is stored at a temperature of 250.0 K and a pressure of 67.0 Pa. If the pressure is

decreased to 60.0 Pa, what will the new temperature be?

Chemistry
1 answer:
Anna11 [10]3 years ago
4 0

Answer:279.1 K

Explanation:

You'll be using Gay-Lussac's Law for this. P1/T1=P2/T2

I have a class for this, and one of the practice questions was formatted this way, so I used that format and substituted said numbers as needed

P1:67 Pa

P2:60 Pa

T1:250 K

T2:?

I really hope this helps!

You might be interested in
Calculate the pOH and the pH of a 5.0 x 10-2 M solution of NaOH.
k0ka [10]

Answer:

pOH = 1.3, pH = 12.7

Explanation:

Since NaOH is a strong base, it will completely ionize; further, since it completely ionizes, our hydroxide concentration (a product of the ionization) will be the same as the given concentration of NaOH.

NaOH -> Na⁺ + OH⁻, [OH⁻] = 5.0 x 10^-2 M

pOH is the negative log of the hydroxide concentration, so plug our hydroxide concentration in:

pOH = -log[OH⁻] = -log[5.0 x 10^-2 M] = 1.3

Since pH + pOH = 14, we can plug in pOH and solve for pH:

pH + 1.3 = 14

pH = 14 - 1.3 = 12.7

Thus, our pOH = 1.3 and pH = 12.7.

5 0
3 years ago
A buffer is composed of nh3 and nh4cl. How would this buffer solution control the ph of a solution when a small amount of a stro
Shkiper50 [21]

Answer:

According to Le-chatelier principle, equilibrium will shift towards left to minimize concentration of OH^{-} and keep same equilibrium constant

Explanation:

In this buffer following equilibrium exists -

NH_{3}(aq.)+H_{2}O(l)\rightleftharpoons NH_{4}^{+}(aq.)+OH^{-}(aq.)

So, OH^{-} is involved in the above equilibrium.

When a strong base is added to this buffer, then concentration of OH^{-} increases. Hence, according to Le-chatelier principle, above equilibrium will shift towards left to minimize concentration of OH^{-} and keep same equilibrium constant.

Therefore excess amount of OH^{-} combines with NH_{4}^{+} to produce ammonia and water. So, effect of addition of strong base on pH of buffer gets minimized.

5 0
3 years ago
The energy acquired in the light-dependent reactions is used in the light-independent reactions to build glucose molecules. How
jeyben [28]

Answer: through energy carriers, ATP and NADPH

Explanation:in the light dependent stage,energy from a light photon is used to create ATP through ADP and an inorganic phosphate.

It does this by the transfer of energetic electron from one electron carrier to another.NADPH is also formed.

In the light independent reaction,ATP and NADP are used to reduce carbon dioxide to 3-phosphoglycerate

8 0
3 years ago
What is the vitamin in an apple?
bulgar [2K]

Answer:

98 IU

Vitamin A

Explanation:

3 0
3 years ago
Read 2 more answers
From the list which items of ppe should always be put on first
fenix001 [56]
Where's the list? If you show it maybe I can help
4 0
3 years ago
Other questions:
  • How are the movement of tectonic plates and volcanoes related ?
    14·2 answers
  • What happens to the coefficients in a reaction when writing the equilibrium constant expression?
    9·1 answer
  • How do you calculate the abundance of an atom and the relative atomic maths? As simply as possible?
    7·1 answer
  • 18.From the following list of aqueous solutions and water, select the one with the highest boiling point.a.1.0 mKNO3b.2.0 mC12H2
    5·1 answer
  • A 0.7834 g sample of a primary standard KHP was titrated with 38.45 mL of NaOH solution to a phenolphthalein end-point. What is
    8·1 answer
  • Hello everyone it's me the shy one. This is like my second post so here are the 4 questions.
    5·1 answer
  • How much pressure (in atm) would be found in 5.8 moles of an ideal gas at 358 K and volume of 3.9 L?
    6·1 answer
  • Please somone help me with a chemistry question brainliest to whoever answers correctly and 20 points
    10·1 answer
  • 1. For CCl4, upload a photo including the following: (1) work arriving at total # valence electrons
    11·1 answer
  • What is the identity of a metal that has a mass of 27.0 g and a volume of 10.0 cm3?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!