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
vaieri [72.5K]
3 years ago
12

PLEASE HELP 20 points

Chemistry
1 answer:
777dan777 [17]3 years ago
4 0

  n = 1.5atm (15L) / .0821 (280k) = .98 mol NaCl

  NaCl = 22.99g Na + 35.45g Cl = 58.44g NaCl

  58.44g NaCl x .98 mol NaCl = 57.27g NaCl

Explanation:

hope you get it right :)

You might be interested in
Wha do u do when u get in a fight wit yo best friend?
antiseptic1488 [7]
Talk to them and listen to each other. if they aren’t ready to talk, give them space. once both of you are ready, you can make up and forgive each other. don’t bother them by asking a lot of questions and forcing them to talk to you. and if they’re doing that, tell them you need time to think. just be sure to talk to them, listen, and understand. tell each other both sides of the stories. of course, different situations can require different solutions. so resolve it when it’s time :)
8 0
3 years ago
Read 2 more answers
Describe how sediments are produced by weathering and erosion
TEA [102]
Weathering is the physical or chemical process where rocks are broken down to form sediments.
 • Physical weathering does not change the rock’s composition.
 • Chemical weathering does change the rock’s composition
 • Erosion is the process where forces such as water, wind, ice, or gravity transport sediments to some remote location
5 0
4 years ago
Read 2 more answers
if the volume of a gas contracted from 648 mL to 0.15L, what was its final pressure if it started at a pressure of 485 kpa
bija089 [108]

Answer:

2100 kPa

Explanation:

The temperature is constant, so the only variables are pressure and volume.

We can use Boyle’s Law.

p₁V₁ = p₂V₂     Divide both sides of the equation by V₂

p₂ = p₁ × V₁/V₂  

p₁ = 485 kPa; V₁ =              648 mL  

p₂ = ?;            V₂ = 0.15 L = 150 mL      Calculate p₂

p₂ = 485 × 648/150

p₂ = 2100 kPa

4 0
3 years ago
When baby birds are ready to hatch out of their eggs, they peck on the inside of their shells until they can get out. This is an
Readme [11.4K]

Answer:

The answer is A

Explanation:

An inherited behavior is a behavior that a creature has from birth.  The baby knows to peck out of the shell before it was even technically born

4 0
4 years ago
I need help with this question!!
garri49 [273]

Answer:

A. 15

Explanation:

From the equation we see that 6 water particles are used to make 1 particle of the hexose.

That means, that to make 1 mole of the hexose, we need 6 moles of water (as a mole is an unit of count of particles).

To make 2.5moles of the hexose, we need 2.5*6 moles of water, so 15 moles of water.

4 0
3 years ago
Other questions:
  • A biology student wants to conduct a study of how the amount of food affects weight gain for mice. He sets up four cages with a
    12·1 answer
  • How do you solve questions 6 and 7
    12·1 answer
  • For the reaction A (g) → 3 B (g), Kp = 80100 at 298 K. When ∆G = -14.2 kJ/mol, what is the partial pressure of A when the partia
    13·1 answer
  • Which of the following would float in water at 25 ºC?
    15·1 answer
  • Identify examples of the list below. Check all that apply
    7·2 answers
  • Write down the formula for B<br> example:<br> Hydrogen + Fluorine = Hydrogen Fluorine <br><br> help
    13·2 answers
  • To make 395 mL of a 0.630 M solution of HCI, how many mL of a 2.4 M solution should<br> be used?
    8·1 answer
  • If the empirical formula of an organic compound is CH20, then the molecular mass of the compound could be
    6·1 answer
  • How can one separate and collect the solvent from a salt solution​
    7·1 answer
  • Can someone help me pls
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!