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NARA [144]
3 years ago
6

How many grams are in 5.00 moles of sodium carbonate?

Chemistry
1 answer:
dimulka [17.4K]3 years ago
8 0

Answer:

= 529.9422

grams

Explanation:

5  moles Sodium Carbonate

= 529.9422

grams

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mass of 6.584 g. After it is heated, it has a mass of 4.194 g. What is the percentage by mass of water in the hydrate?
Bad White [126]
M₁=6.584 g
m₂=4,194 g

m(H₂O)=m₁-m₂

w(H₂O)=m(H₂O)/m₁

w(H₂O)=(m₁-m₂)/m₁

w(H₂O)=(6.584-4.194)/6.584=0.3630  (36.30%)

the percentage by mass of water in the hydrate 36.30

8 0
3 years ago
How many grams of sucrose (c12h22o11) are in 1.55 l of 0.758 m sucrose solution? express your answer in grams to three significa
satela [25.4K]
The molecular formula of sucrose is - C₁₂H₂₂O₁₁
molecular mass of sucrose - 342 g/mol
molarity of sucrose solution is 0.758 M
In 1 L solution the number of sucrose moles are - 0.758 mol
Therefore in 1.55 L solution, sucrose moles are - 0.758 mol/L x 1.55 L
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The mass of 1.17 mol of sucrose is - 1.17 mol x 342 g/mol = 4.00 x 10² g

7 0
3 years ago
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3. If all the waves were measured for a period of 5 seconds, which wave had the highest frequency?
Vanyuwa [196]

Answer:

Correct answer is A.

Explanation:

Frequency is the number of oscillations that a wave have per unit time. Since time is measured in seconds, the wave with the highest frequency must register the highest number of oscillation per second. Hence, correct answer is A.

8 0
3 years ago
Where are metals, nonmetals, metalloids, and the noble gases located on the periodic table?
Fofino [41]
Metals are on the left side of the table and nonmetals are on the left with metalloids between them. And the noble gases are all in group 18 of the periodic table.
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According to the electron-cloud model of the atom, an orbital is a
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Answer : Option 4) Region of the most probable electron location.


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This electron cloud model was different from the older Bohr atomic model by Niels Bohr.

7 0
3 years ago
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