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ANTONII [103]
3 years ago
9

In this experiment you are directed to add a limited amount of naoh (aq) and then an excess amount. a similar strategy will be u

sed with the addition of nh3(aq). why?
Chemistry
1 answer:
Firlakuza [10]3 years ago
8 0
<span>In this experiment you would use a limited amount of noah to see the effects it brings. The similar strategy would be used because with the addition of nh3, the person would want to see what changes the addition of the substance would do. They would do this to determine what the changes to the solution would affect it the most.</span>
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For the following example, list the given and unknown information (including gratis or moles)
Setler79 [48]

Answer:

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Explanation:

I'll assume it is 345 grams, not gratis, of water.  Hydrogen's molar mass is 1.01, not 101.

The molar mass of water is 18.0 grams/mole.

Therefore:  (345g)/(18.0 g/mole) = 19.17 or 19.2 moles water (3 sig figs).

The balanced equation states that:  2H20 ⇒ 2H2 +02

It promises that we'll get 1 mole of oxygen for every 2 moles of H2O, a molar ratio of 1/2.

get (1 mole O2/2 moles H2O)*(19.2 moles H2O) or 9.6 moles O2

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3 years ago
When each piece of ice is placed on a piece of oil it is observed that ice piece 2 melts faster than ice plece 1
solniwko [45]

We cannot see it its so small

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3 years ago
Acetylene is hyrodgenated to form ethane. The feed to the reactor contains 1.60 mol H2/mol C2H2. The reaction proceeds to comple
Black_prince [1.1K]

Answer:

Explanation:

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1 mole     2 mole        1 mole

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or 1.6 mole of H₂ for 1 mole of C₂H₂

required ratio as per chemical reaction written above

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So H₂ is in short supply . Hence it is limiting reagent .

1.6 mole of H₂ will react with half of 1.6 mole or .8 mole of C₂H₂ to form .8 mole of C₂H₆

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b )

yield ratio = mole C₂H₆ formed / mole H₂ reacted ) = 0.8 / 1.6 = 1/2 = 0.5 .

4 0
3 years ago
What is the chemical formula for a molecule of salt?
BARSIC [14]

Answer:

Su fórmula molecular es Na Cl y es el producto de la base hidróxido sódico (NaOH) y ácido clorhídrico, H Cl. En general, las sales son compuestos iónicos que forman cristales. Son generalmente solubles en agua, donde se separan los dos iones. Las sales típicas tienen un punto de fusión alto, baja dureza, y baja compresibilidad.

Explanation:

5 0
3 years ago
C4H10 is an example of a (n) a. Molecular formula b. Structural formula c. Atomic formula d. Geometric formula​
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Answer:

molecular formula

Explanation:

hope it helps

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3 years ago
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