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
Lady bird [3.3K]
2 years ago
10

PLEASE HELP!! i am very stuck

Chemistry
1 answer:
MAVERICK [17]2 years ago
6 0

Answer:

Explanation:

Molar mass of Ca(Cn)2 = 92. 11 mol/g

You might be interested in
What is whether? what is climate? Does todays weather impact climate?​
Tcecarenko [31]

Answer:

Weather is the state in which a certain part inside the atmosphere is hot or cold.Climate is the usual weather in a certain place in the world or atmosphere.One way weather can affect climate is global warming,which is when the world gets hotter and the ice in the world melts and water rises.

Explanation:

5 0
3 years ago
Which of the following is NOT a factor that determines how much energy we need?
german

Answer:

B) The amount of vitamin D gained in 1 day.

Explanation:

6 0
2 years ago
Read 2 more answers
Which of th following is an example of how scientist might use a model?
Gemiola [76]
C. marbles placed inside hollow sphere
8 0
3 years ago
A buffer is prepared by adding 300. 0 ml of 2. 0 mnaoh to 500. 0 ml of 2. 0 mch3cooh. what is the ph of this buffer? ka= 1. 8 10
Anton [14]

The Henderson-Hasselbalch equation can be used to determine the pH of the buffer from the pKa value. The pH of the buffer will be 4.75.

<h3>What is the Henderson-Hasselbalch equation?</h3>

Henderson-Hasselbalch equation is used to determine the value of pH of the buffer with the help of the acid disassociation constant.

Given,

Acid disassociation constant (ka) = 1. 8 10⁻⁵

Concentration of NaOH = 2.0 M

Concentration of CH₃COOH = 2.0 M

pKa value is calculated as,

pKa = -log Ka

pKa = - log (1. 8 x 10⁻⁵)

Substituting the value of pKa in the Henderson-Hasselbalch equation as

pH = - log (1. 8 x 10⁻⁵) + log [2.0] ÷ [2.0]

pH = - log (1. 8 x 10⁻⁵) + log [1]

= 4.745 + 0

= 4.75

Therefore, 4.75 is the pH of the buffer.

Learn more about the Henderson-Hasselbalch equation here:

brainly.com/question/27751586

#SPJ4

6 0
1 year ago
What would happen if the cell cycle stopped in a multicellular organism
oksano4ka [1.4K]

The organism would no longer grow.

5 0
2 years ago
Other questions:
  • Ozone _____.
    8·2 answers
  • Suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of +3.00 pC.
    6·1 answer
  • How many valence electrons does nickel (Ni) have?
    14·2 answers
  • Select the correct answer.
    6·2 answers
  • If you need to produce X-ray radiation with a wavelength of 1 Å. a. Through what voltage difference must the electron be acceler
    15·1 answer
  • Which of the following represents the equation for volume?
    8·2 answers
  • If an atom has 12 protons, 13 neutrons, and 10 electrons, what charge would the atom have?
    7·1 answer
  • imagine you put a balloon on a bottle full of air, then set the bottle into hot water. The balloon would inflate. why?
    13·1 answer
  • Select the equality for the following: 1 L is 1.06 QT
    13·1 answer
  • The burning of ethane produces both co2 and H2O. if 400 ml of CO2 is produced at 30°C and 740 torr, what volume of water vapor w
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!