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PilotLPTM [1.2K]
3 years ago
13

How many oxygen atoms are in 1.60 g of quartz? hints?

Chemistry
2 answers:
Eva8 [605]3 years ago
7 0

Number of oxygen atoms in 1.6 g = 1.6 x 6.02 x 10^23 = 1.603 x 10^22 atoms.

Further Explanation:

Solution:

Quartz has the formula SiO2

From the periodic table:

mass of oxygen = 16 grams

mass of silicon = 28.0855 grams

Mass of one mole of quarts = 28.0855 + 2(16)

= 60.0855 grams

Formula:

number of moles = mass / molar mass

number of moles = 1.6 / 60.0855  

= 0.0266 moles

Each mole of quartz contains Avogadro's number of atoms.

So,

Number of oxygen atoms in 1.6 g = 1.6 x 6.02 x 10^23  

= 1.603 x 10^22 atoms

Quartz:

Quartz is a mineral made out of silicon and oxygen particles in a persistent structure of SiO₄ silicon–oxygen tetrahedra, with every oxygen being shared between two tetrahedra, giving a general substance equation of SiO₂. Quartz is the second most bottomless mineral in Earth's mainland covering, behind feldspar.  

quartz utilized for:  

Quartz is a significant mineral with various employments. Sand, which is made out of modest Quartz stones, is the essential element for the production of glass. Straightforward Rock Crystal has numerous electronic uses; it is utilized as oscillators in radios, watches, and weight measures, and in the investigation of optics.

Subject: chemistry

Level: High School

Keywords: solution, quartz, quartz utilized for.

Related links:  

Learn more about evolution on

brainly.com/question/7035326

brainly.com/question/6966537

Naily [24]3 years ago
4 0
Quartz has the formula SiO2
From the periodic table:
mass of oxygen = 16 grams
mass of silicon = 28.0855 grams
Mass of one mole of quarts = 28.0855 + 2(16) = 60.0855 grams

number of moles = mass / molar mass
number of moles = 1.6 / 60.0855 = 0.0266 moles

Each mole of quartz contains Avogadro's number of atoms.
Therefore:
number of atoms in 1.6 g = 1.6 x 6.02 x 10^23 = 1.603 x 10^22 atoms
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2 years ago
A mixture of nacl and sucrose (c12h22o11) of combined mass 10.2 g is dissolved in enough water to make up a 250 ml solution. the
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We use the osmotic pressure to determine the concentration of the solute in the solution. Then, we multiply the volume of the solution to determine the number of moles of solute particles. We need to establish to equations since we have two unknowns, the mass of of each solute. We do as follows:

osmotic pressure = CRT 
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<span>moles of particles = C*V = 0.3189*0.250 =0.0797 mol </span>
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<span>x + 2y = 0.0797 </span>
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4 0
3 years ago
What is the relative rate of diffusion of hydrogen and nitrogen ​
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Answer:

2.645

Explanation:

Rate of diffusion formula:

Sqrt(mass2/mass1)

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3 0
2 years ago
The sodium salt, NaA, of a weak acid is dissolved in water; no other substance is added. Which of these statements (to a close a
ddd [48]

Answer:

Your question is somewhat poorly worded, even so what I can contribute is the statement is false, since the salt is sodium chloride, where its severe chemical formula NaCl, is a SALT not an acid and if it dissolves in water, seriously the solute of a solution, where water plays the role of the solvent

Explanation:

Sodium chloride is a binary salt, very easy to dissolve in water, it is also called the famous table salt, since it can be ingested in food even though it is not so recommended against high blood pressure conditions.

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