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
chubhunter [2.5K]
3 years ago
13

How many moles are there in 990 grams of sugar, C12H22011? (Sig Figs, do not

Chemistry
1 answer:
Nitella [24]3 years ago
6 0

Answer:

Number of moles = 2.89 mol

Explanation:

Given data:

Number of moles of sugar  = ?

Mass of sugar = 990 g

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of C₁₂H₂₂O₁₁:

12× 12 + 22×1.008 + 16×11 = 342.2 g/mol

Number of moles = 990 g / 342.2 g/mol

Number of moles = 2.89 mol

You might be interested in
is it true heat is energy transfer that reduces the amount of kinetic energy of a substances particle
Cloud [144]

Answer:

false

Explanation:

heat expands and makes the particles faster.

4 0
3 years ago
Once approved, how can nanotechnology be used to treat cancer?
Vinil7 [7]

Answer: using nano-robots to seek and destroy all cancerous cells!

Explanation:

6 0
3 years ago
The atomic number of nitrogen is 7. Nitrogen-15 has a greater mass number than nitrogen-14 because the atomic nucleus of nitroge
Varvara68 [4.7K]

The difference in the mass of the Nitrogen-14 and Nitrogen-15 atom is because nitrogen-15 has 8 neutrons while nitrogen-14 has 7 neutrons.

<h3>What is atomic mass of an element?</h3>

Atomic mass of an element is the sum of the masses of the protons and neutrons in the nucleus of an atom.

<h3>Why is the atomic mass of Nitrogen-14 and Nitrogen-15 different?</h3>

The difference in the mass of the Nitrogen-14 and Nitrogen-15 atom is due to the difference in the number of neutrons.

Nitogen-15 has 8 neutrons while nitrogen-14 has 7 neutrons.

Therefore, the difference in the mass of the Nitrogen-14 and Nitrogen-15 atom is because nitrogen-15 has 8 neutrons while nitrogen-14 has 7 neutrons.

Learn more about atomic mass at: brainly.com/question/8101390

5 0
3 years ago
What is the rule when "ao" or "oo" are together when naming covalent bonds
Gnoma [55]

They are converted into a single “o” when "ao" or "oo" are together when naming covalent bonds.

<h3>What is a covalent bond?</h3>

A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms.

Sometimes, while naming the chemical compounds, a problem arises when compounds with “ao” and “oo” are written with -ide name. Conventionally, they are converted into a single “o”.

For example, the “ao” in the dichlorine hept-ao-xide (Cl_2O_7). This “ao” in the Cl_2O_7 can be converted into “o”. As the result, the correct name of this compound would be dichlorine hept-o-xide.

Hence, they are converted into a single “o” when "ao" or "oo" are together when naming covalent bonds.

Learn more about the covalent bond here:

brainly.com/question/12661797

#SPJ1

8 0
2 years ago
I need help please!!!
n200080 [17]

Answer:

The answer is D.

Explanation:

Because the SI units of mass is kg,

volume is m³,

length is m,

Temperature is Kelvin.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Cheng made a chart to categorize resources. Which correctly completes the chart? X: Geothermal energy Y: Nonrenewable X: Wind Y:
    14·2 answers
  • An atom has the same number of wich two particles?
    6·1 answer
  • How many atoms of carbon are there
    13·1 answer
  • What would the pOH of a solution that causes the cyanidin indicator to turn purple be?
    11·1 answer
  • Need help with this please: What is happing at the triple point?
    7·1 answer
  • Nitrogen gas is not collected over air. why?​
    8·1 answer
  • Which of the following is a product in the reaction described by the word equation below?
    8·1 answer
  • What is the ionosphere and how does it form?
    8·2 answers
  • ¿Quién estableció el concepto moderno de elemento?
    7·1 answer
  • What is the best definition of weight​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!