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
g100num [7]
2 years ago
6

What are the compounds empirical and molecular formulas

Chemistry
1 answer:
Liono4ka [1.6K]2 years ago
5 0

Answer:

The empirical formula is the simplest ratio of atoms while molecular is the actual formula.

Explanation:

Empirical Formula is the simplest ratio of atoms present in the compound.

The molecular formula shows the actual number of atoms present in the compound.

For example, CH is the empirical formula and C6H6 is the molecular formula of benzene.

You might be interested in
1. According to the fossil record, the first LAND plants were most likely pine trees. moss and ferns. flowering plants. 2. Scien
Lynna [10]

Answer:

It is true that earth was once covered with oceans and little dry land.

Explanation:

Over the course of around four billion years, the Earth's oceans have lost about a quarter of their original mass. Today the atmosphere is rich in oxygen, which reacts with both hydrogen and deuterium to recreate water, which falls back to the Earth's surface. So the vast bulk of the water on Earth is held in a closed system that prevents the planet from gradually drying out. According to the researchers,  the continents emerged relatively suddenly from an ocean that covered 95 percent of the Earth's surface. The appearance of large masses of dry land would have caused more extreme weather, changes in ocean currents and the emergence of proper seasons. In turn, these environmental changes may have led to rise in atmospheric oxygen that enabled the explosion of new life forms around 500 million years ago.

7 0
3 years ago
Read 2 more answers
What is the pH of a mixture of 0.042 M NaH2PO4 and 0.058 M Na2HPO4? Hint: The pKa of phosphate is 6.86.
AlekseyPX

Answer:

The pH value of the mixture will be 7.00

Explanation:

Mono and disodium hydrogen phosphate mixture act as a buffer to maintain pH value around 7. Henderson–Hasselbalch equation is used to determine the pH value of a buffer mixture, which is mathematically expressed as,

pH=pK_{a} + log(\frac{[Base]}{[Acid]})

According to the given conditions, the equation will become as follow

pH=pK_{a} + log(\frac{[Na_{2}HPO_{4} ]}{[NaH_{2}PO_{4}]})

The base and acid are assigned by observing the pKa values of both the compounds; smaller value means more acidic. NaH₂PO₄ has a pKa value of 6.86, while Na₂HPO₄ has a pKa value of 12.32 (not given, but it's a constant). Another more easy way is to the count the acidic hydrogen in the molecular formula; the compound with more acidic hydrogens will be assigned acidic and vice versa.

Placing all the given data we obtain,

pH=6.86 + log(\frac{0.058}{0.042})

pH=7.00

5 0
3 years ago
What is a magnetic reversal
Brilliant_brown [7]
A change in the Earth's magnetic<span> field resulting in the </span>magnetic<span> north being aligned with the geographic south, and the </span>magnetic<span> south being aligned with the geographic north. Also called </span>geomagnetic reversal<span>.</span>
5 0
2 years ago
Which of the following salts are soluble?
Alex787 [66]
Answer to the Question

C. Barium phosphate
8 0
2 years ago
Which of the following is a true statement about atomic nuclei?
Free_Kalibri [48]

Answer: they have a net positive charge

Explanation:

8 0
3 years ago
Other questions:
  • How many grams and what is the limiting reactent?
    11·1 answer
  • Given the balanced equation 4al s 3o2 g which type of chemical reaction is shown
    7·1 answer
  • Heating glucose, a monosaccharide sugar, in the presence of excess oxygen produces carbon dioxide gas and water vapor. Balance t
    15·1 answer
  • PLEASE HELP BEFORE 7 A.M. PACIFIC TIME <br> SEE ATTACHED.
    10·2 answers
  • Greenhouse effect is warming due to
    15·1 answer
  • According to the Clausius theorem, the cyclic integral of<br>for a reversible cycle is zero.​
    9·1 answer
  • Chloroform has a density of 1.483g/ml. A sample of chloroform has a volume of 1.93 liters. How many kilograms does it weight? ​
    12·1 answer
  • Why is force and Velocity different??
    11·2 answers
  • What is the density of an object if its mass is 10 g and a volume of 2 mL?
    11·1 answer
  • The element with a completely filled p-subshell is:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!