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
MaRussiya [10]
3 years ago
7

Is the amount of

Chemistry
1 answer:
MA_775_DIABLO [31]3 years ago
4 0
The answer would be density and dough
You might be interested in
A mixture of 1.374 g of H₂ and 70.31 g of Br₂ is heated in a 2.00 L vessel at 700 K . These substances react as follows: H₂(g)+B
uysha [10]

Answer:

Equilibrium concentration of Br₂ = 0.02 M

Explanation:

Moles of hydrogen gas :

Given, Mass of H₂ = 1.374 g

Molar mass of H₂ = 2.016 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{1.374\ g}{2.016\ g/mol}

Moles\= 0.68\ mol

Moles of Bromine gas :

Given, Mass of Br₂ = 70.31 g

Molar mass of Br₂ = 159.808 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{70.31\ g}{159.808\ g/mol}

Moles\= 0.4400\ mol

Considering the ICE table for the equilibrium as:

                       H₂(g)   +          Br₂(g)     ⇌        2HBr(g)

t = o                 0.68               0.44                     0

t = eq                -x                    -x                       +2x

--------------------------------------------- -----------------------------

Moles at eq:  0.68-x           0.44-x                    2x

Given that: At equilibrium the vessel is found to contain 0.566 g of H₂

Moles = 0.566 g / 2.016 g/mol = 0.28 moles

Thus, 0.68 - x = 0.28

x = 0.40 moles

Volume = 2.00 L

Equilibrium moles of Br₂ = 0.44 - 0.40 moles = 0.04 moles

<u>Equilibrium concentration of Br₂ = 0.04 moles/ 2 L = 0.02 M</u>

4 0
3 years ago
How do the number of daylight hours affect temperature
QveST [7]
The areas tilted toward the sun get more daylight hours and higher temps


8 0
4 years ago
Read 2 more answers
Tempature really is a measure of the ?? or the particles in any material
RideAnS [48]
Temperature is the measure of average kinetic energy of the particles in a substance
3 0
3 years ago
What is the ph of a solution of 0.50 m acetic acid?
frosja888 [35]
You need to use the Ka for the acetic acid and the equilibrium equation.

Ka = 1.85 * 10^ -5

Equilibrium reaction: CH3COOH (aq) ---> CH3COO(-) + H(+)

Ka = [CH3COO-][H+] / [CH3COOH]

Molar concentrations at equilibrium

CH3COOH         CH3COO-     H+

 0.50  - x                  x                 x

Ka = x*x / (0.50 - x) = x^2 / (0.50 - x)

Given that Ka is << 1 => 0.50 >> x and 0.50 - x ≈ 0.50

=> Ka ≈ x^2 / 0.50

=> x^2 ≈ 0.50 * Ka = 0.50 * 1.85 * 10^ -5 = 0.925 * 10^ - 5 = 9.25 * 10 ^ - 6

=> x = √ [9.25 * 10^ -6] = 3.04 * 10^ -3 ≈ 0.0030

pH = - log [H+] = - log (x) = - log (0.0030) = 2.5

Answer: 2.5
6 0
3 years ago
Which is a chemical property of soda ash?
MrRissso [65]
A chemical property of soda ash is that it is an alkaline compound , of pH 11.6 in aqueous solution. The chemical name of soda ash is sodium carbonate. It is a sodium salt of carbonic acid and occurs as a white crystalline compound. It has a cooling alkaline taste. It can be found in the ashes of many plants. It is produced in large quantities from sodium chloride (common salt). It can be found as a mineral in mineral deposits of natron usually in seasonal lakes when the lakes dry up.
4 0
3 years ago
Other questions:
  • What the answer can y’all hell me
    14·1 answer
  • Is plastic a homogenous mixture
    6·2 answers
  • The protein catalase catalyzes the reaction The Malcolm Baldrige National Quality Award aims to:
    8·1 answer
  • Is baking soda an acid, base, or neutral
    6·1 answer
  • A student uses a lever and fulcrum to lift a rock off the ground.
    7·2 answers
  • BALANCE THE FOLLOWING EQUATION
    11·1 answer
  • Elements can be identified by their
    13·2 answers
  • What is the ratio of hydrogen molecules to ammonia molecules<br> in the following reaction
    12·1 answer
  • An ion from a given element has 20 protons and 18 electrons.
    6·1 answer
  • Using bond lengths in Table 9.2 (p. 371) and assuming ideal geometry, calculate each of the following distances:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!