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
Anna11 [10]
3 years ago
10

How many moles in 206.91 g Na

Chemistry
1 answer:
Black_prince [1.1K]3 years ago
3 0

Answer:

The answer is 9.000090040048176

You might be interested in
Carbordum is silicon carbide SiC a very hard material used as an abrasive on sand paper and in other applications. it is prepare
AleksandrR [38]

Answer:

4.5 kilograms of silicon dioxide is required to produce 3.00 kg of SiC.

Explanation:

The balanced equation for the reaction between silicon dioxide and carbon at high temperature is given as:

SiO_2+3C\rightarrow SiC+2CO

1 mole silicon dioxide reacts with 3 moles of carbon to give 1 moles of silicon carbide and 2 moles of carbon monoxide.

Mass of SiC = 3.00kg = 3000.00 g

1 kg = 1000 g

Molecular mass of SiC = 40 g/mol

Moles of SiC = \frac{3000.00 g}{40 g/mol}= 75 mol

According to reaction, 1 mole of SiC is produced from 1 mole of silicon dioxide.

Then 75 moles of SiC will be produce from:

\frac{1}{1}\times 75 mol=75 mol of silicon dioxide.

mass of 75 moles of silicon dioxde:

75 mol\times 60 g/mol=4500 g=4.5 kg

4.5 kilograms of silicon dioxide is required to produce 3.00 kg of SiC.

3 0
3 years ago
How many atoms of fluoride are there in one molecule of nitrogen trifluoride?
Helga [31]

Answer:

there are three Fluorine atom. This is because Nitrogen give 3 electron away but fluorine can only take 1. So nitrogen gives 1 neutron to 3 fluorine each which makes it a stable compound

6 0
3 years ago
Read 2 more answers
What is a cold front
Vlada [557]
A cold front is the leading edge of a cooler mass of air, replacing at ground level a warmer mass of air, which lies within a fairly sharp surface trough of low pressure.
4 0
3 years ago
Read 2 more answers
Two very stable compounds, Freon-12 and Freon-14, are used as liquid refrigerants. A Freon-12 molecule consists of one carbon at
Mrrafil [7]
81. There is 1 carbon, 2 chlorine and fluorine atoms in Freon 12. To draw them it forms a cross with C in the middle and Cl and F both on the opposite side. 
     Cl
      l
F - C- F
      l
     Cl

82. Freon-12 and Freon-14 are called halocarbons or just halides. 


6 0
3 years ago
Read 2 more answers
Name a molecule that is small enough to enter the cell
Oksanka [162]

Answer:

oxygen molecule

Explanation:

I belive it is oxygen molecule

8 0
2 years ago
Read 2 more answers
Other questions:
  • Darwin called this idea of certain traits being selected in order for an organism to reproduce sexual selection. In crickets and
    5·2 answers
  • How many formula units make up 25.8g of magnesium chloride (MgCl2)? Express the number of formula units numerically.
    8·1 answer
  • A forest ecosystem starts with both Sonoran toads and Wood frogs. What would you expect to happen if the ecosystem becomes more
    15·1 answer
  • Josie draws models of the particles within a substance. Which model best represents the particles in
    14·1 answer
  • Which list contains only animal phyla? mosses, annelids, conifers, chordates mosses, ferns, conifers, flowering plants cnidarian
    7·2 answers
  • A compound that contains only carbon and hydrogen that produces carbon dioxide and water when burned is called?
    8·1 answer
  • Paano sabihin kay crush na crush mo siya?​
    10·2 answers
  • 15 pts! Explain how the absorption of energy (heating) affects the speed of the particles in a substance.
    13·1 answer
  • What substance will turn form a liquid to solid when cold at 4 degrees Celsius​
    7·2 answers
  • You are heating a piece of glass and now want to pick it up. you should?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!