The total number of sodium atoms in 46.0 grams of solution is?

Answers

Answer 1

Answer: First step, is to find the Molar Mass.
If you go to the periodic table, the Molar Mass of the Sodium Na is 23g/mol

Second Step, you convert from grams to moles.
number of Mole = mass of sodium / molar mass = $(46)/(23) = 2 mol$

Third Step, you find the number of atoms.
As We know, Avogadro said that the number of atoms in 1 mole is about $6.022 * 10^(23)$ .
You use the Rule of three and you find the number of atoms!
1 mole = $6.022 * 10^(23)$ atoms
2 mole = x atomes
x = 2 * ( $6.022 * 10^(23)$ )
x= $12.044 * 10^(23)$ atomes

So, there is $12.044 * 10^(23)$ atoms of Sodium Na in 46g of Solution.

Hope this Helps! :D

Answer 2

Answer: molar mass Na = 23g/mol
46g = 456/2 = 2mol
1mol = 6.022*10^23 atoms
2mol = 2*6.022*10623
= 1.204*10^24 atoms

Related Questions

What triggers the small earthquakes that occur around a volcano before an eruption
What characteristic is common to animals, plants, protists, and fungi?
What is the very small center core of an atom is called?
What is the mass of 2.90 ×1022 molecules of NaOH (Molar mass = 40.0 g/mol)?
Find the oxidation number of each sulfur in the molecule H2S4, which has a linear arrangement of its atoms.

What is an ionice equation with phases for the following chemical reaction: 2HBr(aq)+BaOH2(aq)-->2H2O(l)BaBr2(aq)?

Answers

Molecular reaction

2HBr(aq) Ba(OH)2 (aq) = 2H2O (l) BaBr2(aq)

Ionic equation

2H 2Br- Ba 2 2OH- --------> Ba 2 2Br - 2H2O

Net ionic equation

2H (aq) 2OH- (aq)- ---------> 2H2O (l)

What can be said about the polarity of the C=O bond? A) C and O have the same electronegativity; the bond is nonpolar B) the C=O bond is polar; the O atom bears a partial negative charge C) the C=O bond is nonpolar; the C atom bears a partial positive charge D) the C=O bond is polar; the C atom bears a partial negative charge

Answers

Answer:

The correct answer is B) the C=O bond is polar; the O atom bears a partial negative charge.

Explanation:

In a C=O bond, the oxygen (O) atom is more electronegative than the carbon (C) atom. Electronegativity is the ability of an atom to attract electrons towards itself in a chemical bond. Oxygen has a higher electronegativity than carbon, so it pulls the shared electrons in the C=O bond closer to itself.

As a result, the oxygen atom gains a partial negative charge (δ-) because it has a higher electron density around it, while the carbon atom gains a partial positive charge (δ+) because it has less electron density around it.

This uneven distribution of electron density in the C=O bond leads to polarity, making the bond polar. The oxygen atom, being more electronegative, attracts the shared electrons more strongly, creating a partial negative charge on the oxygen atom and a partial positive charge on the carbon atom.

In summary, the C=O bond is polar, and the oxygen atom bears a partial negative charge (δ-).

What is h2o? How is it build?

Answers

This is water. It is made from 2 elements: hydrogen and oxygen.

Chemical weathering occurs more rapidly in what kind of climates?

Answers

The water alone can perform chemical weathering with the aid of other chemicals which usually form acids that breaks the internal composition of the material. Hot & cold climates usually cause the flaking the outer layers of a rock (thermal expansion) but it belongs to physical weathering.
However, Physical and chemical weathering work together to disintegrate the rock more easier.
I can't specify a climate well because chemical weathering doesn't involve climate too much.

12.42 m +421.0 m + 9.28 m -

Answers

Answer:

442.7m

Explanation:

12.42m+421.0m+9.28

442.7m

No of H atoms in 2.43 g of Aspartame(C^14H^18N^2O^5

Is this method CORRECT

Answers

Answer:

yes

Explanation:

Other Questions

When given the pressure and force of a system , how should the pressure formula be rearranged to solve for area

How many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?

What mass of sodium hydroxide is needed to make 0.500 L of 2.50 M NaOH ?

Which physical state of matter exhibits the greatest change in volume with changes or temperature or pressure?