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
laiz [17]
2 years ago
13

Oxygen gas was produced in a reaction and collected over water. A 136.1 mL mL sample of gas was collected over water at 25C and

1.06 atm. The vapor pressure of water is 23.76 mmHg at 25C. Find the mass of ocygen gas collected in a reaction and collected over water. A 136.1 mL sample of gas was collected over water at 25C and 1.06 atm. The vapor pressure of water is 23.76 mmHg at 25C. Find the mass of oxygen gas collected.
Chemistry
1 answer:
Xelga [282]2 years ago
4 0

Answer:

Explanation:

We shall find volume of gas at NTP or at 273 K , 760 mm of Hg .

Pressure of given gas = 1.06 x 760 mm of Hg less vapor pressure of water .

= 805.6 - 23.76 = 781.84 mm of Hg

For it we use gas law formula ,

P₁V₁ / T₁ = P₂V₂ / T₂

781.84 x 136.1 / ( 273 + 25 ) = 760 x V₂ / 273

= 128.26 mL .

= 128.26  x 10⁻³ L .

22.4 L of oxygen will have mass of 32 g

128.26 x 10⁻³ L of oxygen will have mass of 32 x 128.26 x 10⁻³ / 22.4 g

= 183.22 mg .

You might be interested in
Who uses chemicals ?
nordsb [41]
Is there answer choices ??
4 0
2 years ago
Read 2 more answers
El agua del mar contiene aproximadamente un 3,0 % m/v de sal (NaCl, 58,44 g/mol), (asuma que es la única fuente de cloruros) si
Alchen [17]

Answer:

s = 4.41 g/L.

Explanation:

¡Hola!

En este caso, considerando el escenario dado, se hace necesario para nosotros saber que la posible reacción de disociación la experimenta el cloruro de plomo (II) como se muestra a continuación:

PbCl_2(s)\rightleftharpoons 2Cl^-(aq)+Pb^{2+}(aq)

Lo cual hace que la expresión de equilibrio se calcule como:

Ksp=[Pb^{2+}][Cl^-]^2

Y que en términos de la solubilidad molar, s, se resuelve como:

1.6x10^{-5}=s(2s)^2\\\\1.6x10^{-5}=4s^3\\\\s=\sqrt[3]{\frac{1.6x10^{-5}}{4} } \\\\s=0.0159molPbCl_2/L

Ahora, convertimos este valor a g/L al multiplicarlo por la masa molar del cloruro de plomo (II):

s=0.0159molPbCl_2/L*\frac{278.1gmolPbCl_2}{1molmolPbCl_2} \\\\s=4.41g/L

¡Saludos!

7 0
3 years ago
I AM SO STUCK!
ankoles [38]
1kg is about 2.2 pounds. So 4kg = 8.8 pounds. If that represent 19% of the total, here is the answer.
0.19*x=8.8
x=8.8/0.19
x=46.31 pounds
3 0
2 years ago
What is the chemical name for Se8O7​
irina1246 [14]

Answer:

Selenium oxide

Explanation:

3 0
2 years ago
Plssssssssssssssss help me
AnnZ [28]
True- the finches would eat different sizes nuts and seeds as they would occupy different niches over times which lead to differences in beak sizes within the island
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the salt formers group number is?
    7·1 answer
  • Suppose you have a system made up of water only, with the container and everything beyond being the surroundings. Consider a pro
    15·2 answers
  • What happens to the molarity of bleach when you prepare a solution using 1 gallon of water and 5 table spoons of bleach (sodium
    7·1 answer
  • A solid substance is an excellent conductor of electricity. the chemical bonds in this substances are most likely
    7·2 answers
  • What is a liquid homogeneous mixture called in which the solute is dissolved and distributed evenly within the solvent? Colloid
    5·2 answers
  • A chemist set up a synthesis of phosphorus trichloride by reacting 12.0 grams of phosphorus with 35.0 grams of Cl2. 42.4 grams o
    13·1 answer
  • use the Kinetic Theory to explain the following. when you come home from school and open the door you can smell your tea being c
    6·1 answer
  • What did the early atomic theory accomplish?
    14·1 answer
  • PLEASE HELP TEST<br> does anyone know the answer???? density question
    9·2 answers
  • Name two ways adding salt to lower the freezing temperature benefits you.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!