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
JulijaS [17]
3 years ago
10

Please help !! Will give the brainliest for the complete assignment

Chemistry
1 answer:
kirill [66]3 years ago
8 0

what role does voting play in the political process

You might be interested in
ANSWER QUICK PLEASE <br> WORTH 100 POINTS
sukhopar [10]

Answer:

Explanation:

Volume is defined as the space occupied by an object or substance irrespective of its state of matter.The conversion used from millimeter to liter is:

1 milliiliter = 0.001 L

Therefore, we can convert the volume of sample from 2.5 ml in liters as follows.

2.5 ml in liters = 2.5ml x 0.001 L/1ml

= 0.0025 L

Thus, we can conclude that the volume of given sample in liter is 0.0025 L

Hope this helps! :)

6 0
2 years ago
Suppose that Daniel has a 3.00 3.00 L bottle that contains a mixture of O 2 O2 , N 2 N2 , and CO 2 CO2 under a total pressure of
Alenkinab [10]

Answer:

Partial pressure O₂ → 2.74 atm

Explanation:

Let's analyse the data given:

Volume → 3L

In the bottle there is a mixture of gases that contains, O₂, N₂ and CO₂.

Total pressure is 4.80 atm

Let's apply the Ideal Gases Law to determine the total moles of the mixture

P . V = n .  R. T

4.80 atm . 3L = n . 0.082 . 273K

n = 4.80 atm . 3L / 0.082 . 273K → 0.643 moles

We apply the concept of mole fraction:

Mole fraction of a gas X = moles of gas X / Total moles

Mole fraction of a gas X = Partial pressure X / Total pressure

In a mixture, sum of mole fraction of each gas = 1

We determine mole fraction of N₂ → 0.230 / 0.643 = 0.357

We determine mole fraction of CO₂ → 0.350 atm / 4.80 atm = 0.0729

1 - mole fraction N₂ - mole fraction CO₂ = mole fraction O₂

1 - 0.357 - 0.0729 = 0.5701 → mole fraction O₂

We replace in the formula: Mole fraction O₂ = Partial pressure O₂ / 4.80 atm

0.5701 . 4.80 atm = Partial pressure O₂ → 2.74 atm

5 0
3 years ago
Read 2 more answers
A sample of concrete contains cement, gravel, crushed rocks, sand, and water. Each of these contains different metals and minera
Zepler [3.9K]

As the concrete has cement, gravel, crushed rocks, sand, and water of different physical state and can be separated by physical methods hence it should be called as a mixture.

As the components have significant physical boundaries which clearly identify their presence, the mixture is heterogeneous and not homogeneous.

Thus this is a concrete is a heterogeneous mixture of cement, gravel, crushed rocks, sand, and water

8 0
3 years ago
Which element probably reacts most like bromine, Br?
Nikitich [7]
D) Chlorine, Cl. Hope that helped
8 0
3 years ago
Read 2 more answers
What object has a mass of 10 grams and a volume of 2 mL
Elena-2011 [213]

Answer:

Destiny = 5 g/ml

Explanation:

The formula for density is d=

Knowing this, divide your mass by volume:

10 g / 2 ml = 5 g/ml

Final answer:

Destiny = 5 g/ml

3 0
2 years ago
Other questions:
  • A scientist discovers a new substance. The molecules of the substance form hydrogen bonds with each other. When the molecules lo
    10·2 answers
  • Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus
    14·1 answer
  • You want to make 500 ml of a 1 N solution of sulfuric acid (H2SO4, MW: 98.1). How many grams of sulfuric acid do you need?
    15·1 answer
  • How many moles of chlorine gas are in 1.2m^3 at room temperature and pressure?
    5·1 answer
  • Explain in complete sentences how a convection current is created
    15·2 answers
  • How many grams of CaCl2 are need to prepare 250 mL of a 0.15M solution?
    6·1 answer
  • Iron-59 which is used to diagnose anaemia has a half life of 45days, what fraction of it is left in 90 days
    15·1 answer
  • Calculate the value of Delta H for the reaction CaCO3 --&gt; CO2 + CaO from the following enthalpy changes:
    10·2 answers
  • A 5.00 cm^3 sample of gold has a mass of 96.5 g. Calculate the density of gold.
    6·1 answer
  • The molar mass of water (H2O) is 18. 0 g/mol. A sample of water has a mass of 18. 0 g. How many moles of water are contained in
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!