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
Aleksandr-060686 [28]
2 years ago
8

The solubility of calcium sulfate at 30°c is 0.209 g/100 ml solution. calculate its ksp.

Chemistry
1 answer:
inessss [21]2 years ago
8 0
Answer is: Ksp for calcium sulfate is 2.36·10⁻⁴.
Balanced chemical reaction (dissociation):
CaSO₄(s) → Ba²⁺(aq) + SO₄²⁻(aq).
m(CaSO₄) = 0.209 g.
n(CaSO₄) = m(CaSO₄) ÷ M(CaSO₄).
n(CaSO₄) = 0.209 g ÷ 136.14 g/mol.
n(CaSO₄) = 0.00153 mol.
s(CaSO₄) = n(CaSO₄) ÷ V(CaSO₄).
s(CaSO₄) = 0.00153 mol ÷ 0.1 L = 0.0153 M.
Ksp = [Ca²⁺] · [SO₄²⁻].
[Ca²⁺] = [SO₄²⁻] = s(CaSO₄).
Ksp = (0.0153 M)² = 2.36·10⁻⁴.
You might be interested in
What is the average deer per month
Nuetrik [128]

Answer:

25

Explanation:

explain no need it is perfect

8 0
2 years ago
Read 2 more answers
When positively charged particles were radiated onto a gold atom, a few of the particles bounced back. Which of the following ca
MariettaO [177]
Positively charged protons in the nucleus, hope this helps.
8 0
3 years ago
Read 2 more answers
calculate the number of coulombs of positive charge in 250cm 3 of (neutral) water. (hint: a hydrogen atom contains one proton; a
Sidana [21]

Number of coulombs of positive charge in 250cm^3 water is 1.3×10^7 C

The volume of 250 cm^3 corresponds to a mass of 250 g since the density of water is 1.0 g/cm^3

This mass corresponds to 250/18 = 14 moles since the molar mass of water is 18. There are ten proton (each with charge q = +e) in each molecule of H_{2}O So,

Q = 14NA  q =14(6.02×10^23)(10)(1.60×10^−19C) = 1.3×10^7 C.

Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies.

Learn more about mass here:

brainly.com/question/17067547

#SPJ4

​

3 0
1 year ago
Which substance has the highest viscosity?
Lemur [1.5K]
Room temperature has the highest viscosity
6 0
2 years ago
Read 2 more answers
Please list about 10 facts about viscosity
MariettaO [177]
Viscosity is the thickness of a liquid, cause by the friction between the molecules in that liquid. A very high viscosity would result in a solid form and low would be a liquid. If a liquid as zero viscosity is only found in superfluids at there freezing points or lower. There are also two types of viscosity “dynamic” (which is measure in seconds, pascal seconds to be exact) and “kinematic” (which is measured in metre per second squared)

Fun fact they use viscosity to predict when volcanoes are going to erupt:)

Hope this helps I love sciencey stuff so if you need anymore help let me know!
5 0
2 years ago
Other questions:
  • What is the rate for the second order reaction Products when [A] = 0.371 M? (k = 0.761 M's")​
    9·1 answer
  • Alchemy is a branch of ancient knowledge that states that the only three essential substances in nature are salt, sulfur, and me
    7·1 answer
  • A compound consists of 0.154 g sodium, 0.238 g chlorine, and 0.322 g oxygen
    14·1 answer
  • Find the empirical and molecular formula for a molar mass of 60.10g/mol; 39.97% carbon 13.41% hydrogen: 46.62% nitrogen
    7·1 answer
  • Whats the awnser? i cant find it and i need it asap! anyone i will crown you the brainleist!
    15·1 answer
  • Any body want to type a 500 word eassy :))))))))) pls about photosynthesis gas and become friends and talk to me
    9·1 answer
  • Consider two solutions separated by a semipermeable membrane, as shown in the illustration to the right. The membrane allows the
    8·1 answer
  • Can you force the atoms into new configurations by pushing atoms around? What does this suggest
    11·2 answers
  • In a roller coaster, both the kinetic and potential energy in the car decreases at
    11·1 answer
  • How can I write a poem about cells
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!