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
zhannawk [14.2K]
3 years ago
12

How many moles are present in a 24.5 gram sample of K2Cr2O7?

Chemistry
1 answer:
attashe74 [19]3 years ago
6 0
The answer to this is solved through stochiometry: the answer is  this: 0.0833mol

You might be interested in
Nitrogen is used to keep food frozen during transportation.
Greeley [361]

Answer:

Gaseous nitrogen has unique chemical and physical properties that make it suitable for use in food processing. Nitrogen is inert which means it will not react with prepared food materials, which can alter their aromas or flavors. Also, gaseous nitrogen will effectively displace oxygen minimizing oxidation and the growth of microorganisms that cause foods to lose their freshness and deteriorate faster.

Explanation:

Source: https://www.generon.com/using-nitrogen-gas-in-food-packaging/

4 0
2 years ago
Someone please help me
ehidna [41]
I hop this will help u

8 0
2 years ago
Hey I'm a newbie any help please with this
solniwko [45]
6 A
7 A
8 B
9 B
10 A
11 C
4 0
3 years ago
What is Behavioral Adaption!!!!!!!<br> I need a definition quick!!!!
tia_tia [17]
Behavioral Adaptation is something that is natural in animals that are used for survival. Example: Birds Migrating north during the winter.
6 0
3 years ago
Determine the pressure in atm exerted by 1 mole of methane placed into a bulb with a volume of 244.6 mL at 25°C. Carry out two c
Nuetrik [128]

The pressure in atm exerted by 1 mole of methane placed into a bulb with a volume of 244.6 mL at 25°C is 101.94atm.

<h3>How to calculate pressure?</h3>

The pressure of an ideal gas can be calculated using the following formula:

PV = nRT

Where;

  • P = pressure
  • V = volume
  • n = number of moles
  • R = gas law constant
  • T = temperature

According to information in this question;

  • T = 25°C = 25 + 273 = 298K
  • V = 244.6mL = 0.24L
  • R = 0.0821 Latm/Kmol

P × 0.24 = 1 × 0.0821 × 298

0.24P = 24.47

P = 24.47/0.24

P = 101.94atm

Therefore, the pressure in atm exerted by 1 mole of methane placed into a bulb with a volume of 244.6 mL at 25°C is 101.94atm.

Learn more about pressure at: brainly.com/question/11464844

3 0
2 years ago
Other questions:
  • Lee conducts an experiment to see if mass is conserved when a piece of charcoal is burned for 5.0 minutes. He measures the mass
    12·1 answer
  • How can you increase the boiling point of water?
    8·1 answer
  • What are the correct half reactions for the following reaction: Cu2+ + Mg -&gt; Cu + Mg2+
    15·2 answers
  • When electrons are added to the outermost shell of a carbon atom, it forms?
    5·2 answers
  • Acids react with bases so that the properties of both are lost to form water and a salt. This is called __
    8·1 answer
  • How would Mg change to gain a noble gas structure?<br><br> lose 2 electrons<br> gain 6 electrons
    10·2 answers
  • a 1kg rock is at a height of 100 meters. What is the rocks gravitational potential energy at 100 meters high
    6·2 answers
  • How many moles are in 68 grams of copper (ll) hydroxide, Cu(OH)2
    5·2 answers
  • Use Hess's Law and equations B and C to find the enthalpy change for equation A. A) 2 C2H4 + H2O à C4H9OH ΔH = ??? B) 2 C2H4 + 6
    5·1 answer
  • 0.15 grams of Mg is combined with HCl to
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!