CHEMISTRY HIGH SCHOOL

The empirical formula of a compound is found to be P2O5. Experiments show that the molar mass of the compound is 426g/mol. What is the molecular formula of the compound?Answer: P4O10

Answers

Answer 1
Answer:

Answer:

Molecular formula = P₄O₁₀

Explanation:

Given data:

Empirical formula of compound = P₂O₅

Molar mass of compound = 426 g/mol

Molecular formula = ?

Solution:

Molecular formula:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass=  P₂O₅  = 283.89 g/mol

n = 426 g/mol / 283.89 g/mol

n = 2

Molecular formula = n (empirical formula)

Molecular formula = 2 (P₂O₅ )

Molecular formula = P₄O₁₀

Related Questions

Given the balanced equation representing a reaction:6Li +N2 --> 2Li3NWhich type of chemical reaction is represented by this equation?(1) synthesis (2) decomposition(3) single replacement (4) double replacement
The point at which a substance is at complete equilibrium is called? User: a hydrogen bond is a special form of what type of bond
Which statement describes heterogeneous mixtures?A. They are made up of two or more pure substances that are not chemically bonded together. B. They appear uniform, like a pure substance. C. They have fixed ratios between their components. D. They are made up of two or more pure substances that can be separated only by chemical processes.
The compound HCI is an example of a (n)
There are several ways to model a compound. One type of model is shown. A central C attached to 3 C's by 1 line each, each of the 3 C's being attached to 3 H's by a 1 line each. The central C is also attached by 1 line to a C, which is attached to 2 H's and a C by a single line each. The C is attached by 2 lines to an O ad by 1 line to another O. The O with 1 line is attached by 1 line to an H. What is the chemical formula for the molecule modeled? CHO C4H11O2 C6H12O2 C6H9O

Which element is likely to be the most brittle

Answers

Answer : Selenium

Explanation :

The complete question is attached in the attachment.

Out of the given options, Selenium is the one which is most brittle element.

As selenium is a metalloid or a crystalline non metal which is lustrous and is ductile in nature and is highly brittle in nature.

Selenium is the most brittle out of all the other elements

Classical biotechnology dates back about _____ years ago. A.100
B.1,000
C.10,000
D.100,000

Answers

The correct answer should be C. 10,000. Although it sounds like something futuristic, it's existed almost as long as civilzied humans because it was present in the form of selective breeding of animals and plants during the early eras of agriculture and settling in river valleys. Nowadays it's more complex and more things can be achieved.

Classify the following reactions and complete the given below
A) NaCl + AgNO3 - NaNO3 + AgCl

Answers

Answer:

chemical equation balance.

Explanation:

if you need more explanation , comment.

Which atomic model proposed that electrons move in specific orbits around the nucleus of an atom

Answers

The atomic model that proposed that electrons move in specific orbits around the nucleus of an atom is the Bohr model, or the Rutheford-Bohr model, envisioned by Niels Bohr in 1913.

Which of the following tells the computer what to do?a. Internet Explorer
b. Operating system
c. Random access memory
d. Monitor

Answers

The correct answer is B. The operating system tells the computer what to do. It is the software that support's the basic functions of a computer. This includes scheduling tasks, controlling peripherals and executing applications.

Answer:

the answer is b and this how i know

Explanation:

i know that the answer is b because i just did this hope this helps tell me if its wrong it shouldnt be tho

two children are playing tag. Child A who is doing the chasing can run 100m in 24 seconds Child B is running away from child A and can run 64m in 21 seconds. How fast can each child run, and if both of the children do not slow down, will child A be able to catch child B?

Answers

Child A runs at 4.1667 meters per second and child B runs at 3.048 meters per sec. If they do not slow down Child A will be able to catch child B.
Other Questions
Which ion was formed by providing the second ionization energy to remove an electron? Ca2+ N3– Fe3+ S2–
In the ground state, has only 1 electron in a p orbital.A. carbon B. fluorine C. hydrogen D. nitrogen E. aluminum
A liquid mixture in which particles can be seen and easily separated by settling or filtration is aa. solution. b. suspension. c. solvent. d. solute.
Given the following two thermochemical equations, H2(g) + ICI(8) HCl(g) + HI(g) AH° = -83.1 kJ = 12(8) + HCl(g) HI(g) + ICI(8) AH° = 73.6 kJ determine the standard enthalpy change associated with the following reaction: H2(g) + 21C1(g) 2HCl(g) + 12(9) AH° = ? -9.5 kJ -283.0 kJ O 156.7 kJ 0 -156.7 kJ O 9.5 kJ