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
BabaBlast [244]
4 years ago
12

A compound has the empirical formula CH2O and a gram-formula mass of 60. grams per mole. What is the molecular formula of this c

ompound?
(1) CH2O (3) C3H8O
(2) C2H4O2 (4) C4H8O4
Chemistry
1 answer:
AlladinOne [14]4 years ago
4 0
We already know the molar mass of C is 12.01g/mol, of H is 1.008 g/mol, and of O is 16g/mol.

If the molecular formula were also the empirical formula (which is CH2O), then it would have a molar mass of:
12.01g/mol +2*(1.008g/mol)+ 16g/mol= 30.03g/mol

However, the actual molar mass of the molecular formula is 60.g/mol, which is about twice as large as 30.03g/mol. Therefore, we have to multiply the empirical formula by 2.

The molecular formula of this compound is (2) C2H4O2.

Hope this would help~

You might be interested in
A 300-gallon anaerobic digester will be loaded daily with a feedstock that contains two parts dairy manure and one-part water by
Mars2501 [29]

Answer:

The volume of feedstock needed to mantain an organic load rate of 2 kgVS/day is 0.055 m3/day of feedstock.

The HRT is 20.6 days.

Explanation:

First, we calculate how many kg is 1 m3 of feedstock. We know the density, so we can calculate the mass:

M=\rho*V=37.5\frac{lb}{ft^3}*1m^3*(\frac{3.281ft}{1m})  ^3=1324.5lb=600.7 kg

If the VS are 6% in weight,

M_{vs}=0.06*M=0.06*600.7\,kg/m^3=36,0kgVS/m3

The volume per day needed to feed 2 kg of VS/day is:

V=\frac{2kg}{36kg/m^3}= 0.055m3/day=5.5litres/day

The HRT depends on the volume of the tank and the flow. Its equation is

HRT=\frac{V}{Q}=\frac{300gal}{0.055 m^3/day}*\frac{1m^3}{264.172gal}\\   \\HRT=20.6\,days

6 0
3 years ago
Convert 150 g/L to the unit g/mL.<br><br> 15,000 g/mL<br> 15 g/mL<br> 0.15 g/mL<br> 0.0015 g/mL
fredd [130]
1 g/L ------- 0.001 g/mL
150 g/L ----- ?

150 x 0.001 / 1

= 0.15 g/mL

Answer C
6 0
4 years ago
Read 2 more answers
_______ oxides are oxides of certain non metals​
kogti [31]

acidic in naturenature

Generally, Oxides of non-metals are acidic in nature. When non-metals are reacted with water it forms an acidic solution. The common oxides of Sulphur, Selenium, and Bromine are strongly acidic.

5 0
2 years ago
A man weighs 185 lb. What is his mass in grams?<br> Please show work.<br> Thank you
Vera_Pavlovna [14]

Answer:

83914.52 grams

Explanation:

Given that,

Weight of a man is 185 lb

We need to find his weight in grams

For this, we must know the relation between lb and grams.

We know that,

1 lb = 453.592 grams

To find the mass of man in grams, the step is :

185 lb = (453.592 × 185) grams

= 83914.52 grams

So, the mass of a man is 83914.52 grams.

8 0
4 years ago
What happens if a solid changes the state of substance to liquid?
kati45 [8]
It would had to have melted in order to change the properties from a solid into a liquid. It also depends on the type of solid wheither a chemical or a ice cube. If it was a ice cube if would dilutte the liquid solution and changes the taste ot texture (feel) if it was a chemical the properties could change the liquid into a solid only depending on th type of chemical. EX..Liquid Nitrogen and a piece of raw chiken the outcome after putting the chicken in the nitrogen would be frozen. Because the chemical Nitrogen freezes the particles which makes the chicken frozen.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Place the following descriptions in the correct order (1 to 4) to explain how lightning forms.
    5·1 answer
  • Ionization energy is the minimum energy required to remove an electron from an atom in its ground state. It depends on the posit
    10·2 answers
  • What does CER mean for science?
    6·2 answers
  • What is the net ionic equation for the reaction that is represented by the following total ionic equation?
    9·2 answers
  • Organic materials are from ___________things.<br><br> A. Living<br> B. Dead<br><br> EASY POINTS
    12·2 answers
  • Write a balanced half-reaction for the reduction of gaseous nitrogen N2 to aqueous hydrazine N2H4 in acidic aqueous solution. Be
    5·1 answer
  • Calculate the percent composition of chlorine in methyl trichloride, CHCl3.
    11·1 answer
  • A substance that is made up of two or more different types of atoms bonded together is a
    15·1 answer
  • How many grams are in 6.04 x 10^22 particles of AICI3
    7·1 answer
  • Which best describes the forces in the nucleus of a stable atom?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!