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
satela [25.4K]
2 years ago
12

A chemist determined by measurements that moles of calcium sulfide participate in a chemical reaction. Calculate the mass of cal

cium sulfide that participates.
Chemistry
1 answer:
Harman [31]2 years ago
6 0

corrected question:

A chemist determined by measurements that 0.03 moles of calcium sulfide participate in a chemical reaction. Calculate the mass of calcium sulfide that participates

Answer:

Explanation:

number of moles of CaS

molar mass of CaS = 40+32 = 72g/mol

number  of moles = mass/ molar mass

mass = number of moles * molar mass

mass = 0.03 *72

mass of calcium sulfide = 2.16g

You might be interested in
Draw structures from the following names, and determine which compounds are optically active:(b) 3-chloro-2,2,5-trimethylhexane
inn [45]

The given compound 3-chloro-2,2,5-trimethylhexane is an optically active compound .

Because this compound does not have plane of symmetry (POS) and center  of symmetry (COS) i.e. does not have di-symmetry . And also forms non superimposable mirror image . the compound is optically active .

It has  chiral center.

Here the chiral carbon has 4 distinct groups such as : chlorine , hydrogen , 2-methylpropyl , tertbutyl .

<h3>What is di-symmetry?</h3>

Di-symmetry is that which have no center of symmetry and plane of symmetry and alternate axis of symmetry .

<h3>Chiral center :</h3>

Have Sp3 hybridized center (4sigma bond ) .

4 distinct group  is attached to the chiral atom. form non -superimposable mirror image .

<h3>What is optical isomerism ?</h3>

Same molecular formula and same structural formula . also have same physical and chemical properties .

They differ in their behavior towards plane polarized light (ppl) .

Learn more about chiral center here:

brainly.com/question/9522537

#SPJ4

7 0
1 year ago
What volume of 0.128 M HCl is needed to neutralize 2.87 G of Mg(OH)2?
qaws [65]
V= .768L= 76.8ml HCL
4 0
3 years ago
What is the molecular formula of C,H,O
DIA [1.3K]

Answer:

It is composed of 57.17% S and 42.83% C and has a molar mass of 448.70 g/mol. Determine the empirical and molecular formulas of “sulflower.”

...

what is the molecular formula of the compound?

Empirical formula Molar mass (g/mol) Molecular formula

CHO 116.1

C8H16

Explanation:

Hope this helps

8 0
3 years ago
Why is salt added to hot chicken soups during cooking besides giving the chicken soups a good taste?
SIZIF [17.4K]

Answer:

The answer is option 3.

Explanation:

When salt is added to the water, the boiling point increases because it needs to take in more energy from heat to <u>b</u><u>r</u><u>e</u><u>a</u><u>k</u><u> </u><u>d</u><u>o</u><u>w</u><u>n</u> the bonds and dissolve the salt in the water.

(Correct me if I am wrong)

5 0
2 years ago
Read 2 more answers
Achieving a balanced diet is best done by
Reika [66]
B. eating the right amount of calories each day
for a, you need proteins,veggies and calories to survive, as each does a specific job such as glucose and protein being created, etc.
For c, you can have at least 1 item from each food group each day, but you can still have too much of something and thats harmful.
For d,getting 100% calcium only works with calcium, and  you can do anything with the other foods.
For b(which is correct), people usually eat an excess of calories, and that mainly controls your weight. Now other food groups can also affect you if you have too much, but people tend to have too much calories, so  getting the right amount of calories is the best choice
8 0
3 years ago
Other questions:
  • Which statement is true about a reversible reaction?
    5·1 answer
  • What is the melting point of gallium?
    12·2 answers
  • A scientist is studying two types of worms. Worm X has DNA identical to its parent. Worm Y has a combination of DNA from two par
    9·2 answers
  • Which best describes why a liquid needs a container when a solid does not?
    5·2 answers
  • How can you tell a meteor from a comet in the night sky
    15·1 answer
  • he atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is represented by the symbol shown belo
    11·2 answers
  • Whichstatement describes a question that can be answered by a scientific investigation
    11·1 answer
  • Q+ ( poistive ion ) is an ion of element Q.<br> What has the highest value in the ion?
    9·2 answers
  • What item is made from a synthetic material
    13·1 answer
  • Which describes the oxidizing agent in a chemical reaction?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!