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
Irina-Kira [14]
3 years ago
7

The formula distance time is used for calculating

Chemistry
1 answer:
IgorLugansk [536]3 years ago
3 0

Answer:

sry, need points.

Explanation:

You might be interested in
How many atoms of oxygen are contained in 160 grams of N203?
Ahat [919]

Answer:

i think it is 1.27 x1024

Explanation:

i don't really know though

7 0
3 years ago
Read 2 more answers
How do elements differ going from left to right across a period on the periodic table?
Nuetrik [128]
Their atomic number increases
6 0
3 years ago
Write the nuclear symbol for the neutral atom shown. 5 protons, 6 neutrons, 5 electrons. nuclear symbol:
OLga [1]

Answer:

B

Explanation:

the element is boron, therefore B is the symbol

3 0
2 years ago
given a k value of 0.43 for the following aqueous equilibrium suppose sample z is placed into water such that its original conce
serious [3.7K]

Answer:

Less than 0.033 M:

[Z]_{eq}=2.4x10^{-3}M

Explanation:

Hello,

In this case, the described equilibrium is:

2A+B\rightarrow 2Z

Thus, the law of mass action is:

K=\frac{[Z]^2}{[A]^2[B]}=0.43

Nevertheless, given the initial concentration of Z that is 0.033 M, we should invert the equilibrium since the reaction will move leftwards:

\frac{1}{K}=\frac{[A]^2[B]}{[Z]^2}=\frac{1}{0.43}=2.33

Know, by introducing the change x due to the reaction extent, we can write:

2.33=\frac{(2x)^2*x}{(0.033-2x)^2}

Which has the following solution:

x_1=2.29M\\x_2=0.0181M\\x_3=0.0153M

But the correct solution is x_3=0.0152M since the other solutions make the equilibrium concentration of Z negative which is not possible. In such a way, its concentration at equilibrium is:

[Z]_{eq}=0.033M-2(0.0153M)

[Z]_{eq}=2.4x10^{-3}M

Which is clearly less than 0.033 M since the addition of a product shift the reaction leftwards in order to reestablish equilibrium (Le Chatelier's principle).

Regards.

6 0
3 years ago
A 45.0L gas cylinder contains 988 He at 23 degrees C what is the pressure inside the cylinder​
gregori [183]

Answer:

P = 133.4 atm

Explanation:

Given data:

Mass of helium = 988 g

Volume = 45.0 L

Temperature = 23°C (23+273= 296 K)

Pressure of cylinder = ?

Solution:

Number of moles of helium:

Number of moles = mass/ molar mass

Number of moles = 988 g/ 4 g/mol

Number of moles = 247 mol

Pressure:

PV = nRT

P = nRT/V

P = 247 mol × 0.0821. atm. L/mol. K × 296 K / 45 L

P = 6002.5 / 45 L

P = 133.4 atm

8 0
3 years ago
Other questions:
  • What is the molarity of the solution produced when 8.0g NaOH is dissolved in sufficient water to prepare 500.mL of solution?
    7·1 answer
  • a sample of gas with a mass of 1.70 g occupies a volume of 961 ml at a pressure of 728 torr and a temperature of 21°C. what is t
    15·1 answer
  • The freezing point and the boiling point of water can be altered by a variety of
    5·1 answer
  • A type of building that absorbs the energy of seismic waves is a fixed-base building. True or False
    13·2 answers
  • Bacteria and mold break down fallen leaves on the forest floor. When they do
    9·1 answer
  • Calculate the number of moles of gas in a basketball inflated to a total pressure of 1.65 atm with a volume of 3.2 L at 250C. (
    13·1 answer
  • What is the mass of an object accelerating at 10 m/s2 when a force of 10 N is applied?
    14·1 answer
  • 10N 20N 12N What is the net force?​
    9·1 answer
  • What determines how molecules are redistributed in diffusion?​
    13·1 answer
  • Type the correct answer in each box.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!