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
melamori03 [73]
3 years ago
5

What is the empirical formula for a molecule containing 46.8% Si and 53.2% O?

Chemistry
1 answer:
Over [174]3 years ago
4 0
Assume there are 100 g of the substance.
Masses:
Si: 46.8 g
O: 53.2 g
Moles:
Si: 46.8 / 28 = 1.67
O: 53.2 / 16 = 3.32
Dividing by the smaller number:
Si: 1.6 7/ 1.67 = 1
O: 3.32 / 1.67 = 2
Thus, the formula:
SiO2
You might be interested in
In addition to decreasing the amount of fat in a dish, salsa can also increase the amount of
morpeh [17]
Its c ok im sorry if i got the last answer wrong
4 0
3 years ago
Why do you think the molarity relationship is so important to the chemist?
Oksana_A [137]

There are two big advantages of using molarity to express concentration. The first advantage is that it's easy and convenient to use because the solute may be measured in grams, converted into moles, and mixed with a volume.


The second advantage is that the sum of the molar concentrations is the total molar concentration. This permits calculations of density and ionic strength

5 0
2 years ago
Which part of the food web is NOT a living thing?
stiks02 [169]

Answer:

the sun

Explanation:

the sun is not alive and plants use photosynthesis to eat the radiation emitted by the sun.

4 0
3 years ago
Covalent bonds usually occur between atoms that have
marta [7]

Answer: A: high ionization energies; high electron affinitlies.

Explanation: Covalent bonds are basically about sharing of electrons between two atoms to achieve that stable structure. They are formed between two atoms when both have similar tendencies to attract electrons to themselves (i.e., when both atoms have identical or fairly similar ionization energies and electron affinities). Covalent bonding usually occurs between two non-metals.

For effective and proper bonding, the two atoms involved in the covalent bonding exercise should be small and hungry for electrons. This is to enable the nuclei of both atoms to effectively attract and hold the shared electron(s) in place; hence, the need for high ionization energies & high electron affinities for a more effective covalent bonding.

7 0
3 years ago
How many grams of Mg(NO3)2 would be produced? please show how you got the answer​
Len [333]

Answer:

148 grams of relative atomic mass

Explanation:

magnesium atomic mass : 24

nitrogen : 14

oxygen : 16

24 × 1

14 × 1 × 2

16 × 3 × 2

24 + 28 + 80 = 148 grams

7 0
3 years ago
Other questions:
  • Which product is typically made using softwood?
    14·2 answers
  • A reaction A(aq)+B(aq)↽−−⇀C(aq) has a standard free‑energy change of −4.20 kJ/mol at 25 °C. What are the concentrations of A, B,
    8·1 answer
  • What is the mass, in grams, of 1.33 mol of water, H2O?
    9·1 answer
  • The amount of heat needed to raise 25 g of a substance by 15°C is 293 J. What is the specific heat of the substance? Use the equ
    6·1 answer
  • In a biology reaction involving an enzymes, the active site of an enzymes binds to (blank)
    8·1 answer
  • The nucleus of an atom contains which subatomic particles? A) neutrons only B) protons and neutrons C) neutrons and electrons D)
    5·2 answers
  • Yo answer my question
    13·2 answers
  • It take 38.70cm³ of 1.90 NaO4 to neutralize 10.30cm³ of H2So4 in a battery. Calculate the molar concentration of H2So4
    6·1 answer
  • The sun is bigger than the Moon, but they appear to be the same size in the sky when you look at them from Earth. Why?
    9·1 answer
  • 3. What is the total pressure of a mixture of nitrogen and hydrogen, in atm, if the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!