badasswithabow badasswithabow

12-11-2018
Chemistry

contestada

What is the empirical formula of a compound that contains 40 percent carbon, 6.7 percent hydrogen, and 53.3 percent oxygen by mass?

Respuesta :

jsoso102000 jsoso102000

21-11-2018

40.0 g C * 1 mol C/ 12.0 g C = 3.333 mol C

6.7 g H * 1 mol H/ 1.008 g H= 6.6 mol H

53.3 g O * 1 mol/ 16.0 g O= 3.331 mol O

divide by the least moles

3.333 mol C / 3.331 = 1

6.6 mol H/ 3.331 = 1.98 ~ 2

3.331 mol O/ 3.331 = 1

empirical formula is H2CO

Answer Link

Otras preguntas

Mandy charges all of her customers by weight so she gets $5 per kilogram of corn cobs or $1.25 for an individual corn cob. If Mandy is going to sell over 100 ki

A bank account balance, in dollars, is modeled by the equation f(t)=1000⋅(1. 08)t, where t is time measured in years. About how many years will it take for the

Find the slope of the line passing through the points , 2−6 and , −9−6

ought to have been sentence

A company that has positive free cash flow struggles with a.retiring debt. b.having financial flexibility. c.funding internal growth. d.None of these choices ar

A savings account balance is compounded annually. If the interest rate is 2% per year and the current balance is $1,377.00 what will the balance be in 15 years?

Help will give thanks to the first to answer

An outlet or brand whose performance confirms a low-performance expectation generally will result in _____. a. satisfaction b. dissatisfaction c. nonsatisfactio

Identify similar pentagons.

19. Which Venn diagram correctly represents the relationship between rational numbers and irrational numbers? Explain your answer.