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lilavasa [31]
3 years ago
15

-60 points-

Chemistry
1 answer:
Firdavs [7]3 years ago
6 0

Answer:

1.23e+27

Explanation:

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What happens to the molarity of a salt solution if the number of moles of salt in the solution is multiplied by three and the nu
Dovator [93]

Answer:

The molarity of the solution remains unchanged.

Explanation:

Consider the formula for the molarity M of a solution:

\displaystyle M = \frac{n}{V},

where

  • n is the number of moles of solute in this solution, and
  • V is the volume of the solution.

For this salt solution,

  • n_{1} = 3\;n_{0}, and
  • V_{1} = 3\;V_{0}.

Initial molarity:

\displaystyle M_{0} = \frac{n_{0}}{V_{0}}.

Final molarity:

\displaystyle M_{1} = \frac{n_{1}}{V_{1}} = \frac{3\;n_{0}}{3\;V_{0}} = \frac{n_{0}}{V_{0}} = M_{0}.

In other words, the molarity of the solution remains unchanged.

8 0
3 years ago
What is the balanced equation for the complete combustion of pentane (C5H12)?
LekaFEV [45]
2C5H12 + 16O2 —> 10CO2 + 12H2O

2•5=10 C 10=1•10
2•12=24 H 24=2•12
16•2=32 O 32=(10•2)+(1•12)
=20+12
6 0
4 years ago
When a forest burns and all that's left is some ash,
dalvyx [7]

Answer:

C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + H₂O

Explanation:

When a forest burns and all that's left is some ash,  most of the mass of the trees go to the atmosphere, in the form of carbon dioxide.

In a total combustion process of organic matter,<em> the two molecules produced are carbon dioxide and water. </em>(CO₂ and H₂O)

The equation for the combustion of glucose is:

C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + H₂O

8 0
3 years ago
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If a solution containing 117.63 g of silver chlorate is allowed to react completely with a solution containing 10.23 g of lithiu
GuDViN [60]

Answer:

18.8 g

Explanation:

The equation of the reaction is;

AgClO3(aq) + LiBr(aq)------>LiClO3(aq) + AgBr(s)

Number of moles of AgClO3 = 117.63 g/191.32 g/mol = 0.6 moles

Number of moles of LiBr = 10.23 g/86.845 g/mol  = 0.1 moles

Since the molar ratio is 1:1, LiBr is the limiting reactant

Molar mass of solid AgBr = 187.77 g/mol

Mass of precipitate formed = 0.1 moles * 187.77 g/mol

Mass of precipitate formed = 18.8 g

8 0
3 years ago
What is photosynthesis?​
dsp73
The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
7 0
3 years ago
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