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2 years ago

The formula of complex ion formed when aluminum hydroxide dissolves in sodium hydroxide will be:________

1 answer:

Colt1911 [192]2 years ago

5 0

The formula of complex ion formed when aluminum hydroxide dissolves in sodium hydroxide will be: [Al(OH)]²⁺ [Al(OH)₂]+ Al(OH)₃ [Al(OH)₄]–

When aluminum hydroxide dissolves in sodium hydroxide:

Al(OH)₃ + NaOH → NaAlO₂ + 2H₂O,

So, the NaAlO₂ forms AlO₂⁻

Is aluminum hydroxide soluble in sodium hydroxide?

Aluminum hydroxide is soluble in excess of sodium hydroxide forming the ion.

Aluminum hydroxide, Al(OH)₃, is found in nature as the mineral gibbsite and its three much rarer polymorphs: bayerite, doyleite, and nordstrandite. Aluminum hydroxide is amphoteric, i.e., it has both basic and acidic properties.

What are the uses of Aluminum hydroxide?

Aluminum hydroxide is an antacid. Aluminum hydroxide is used to treat heartburn, upset stomach, sour stomach, or acid indigestion. Aluminum hydroxide is also used to reduce phosphate levels in people with certain kidney conditions.

To learn more about Aluminum hydroxide here

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Acetylene (C2H2) gas is often used in welding torches because of the very high heat produced when it reacts with oxygen (O2) gas

babymother [125]

Answer:

0.05 mol

Explanation:

The balanced equation for the reaction that takes place is:

2C₂H₂ (g) + 5O₂ (g) → 4CO₂ (g) + 2H₂O (g)

Now we<u> convert 0.10 moles of carbon dioxide (CO₂) into moles of acetylene (C₂H₂)</u>, using the <em>stoichiometric coefficients of the balanced reaction</em>:

0.10 mol CO₂ * $\frac{2molC_2H_2}{4molCO_2}$ = 0.05 mol C₂H₂

7 0

3 years ago

(You do) If you have 47.2 mol of Na available, along with an excess of Cl₂, how many grams of NaCl can you produce?

IrinaVladis [17]

Answer:

2,760 grams NaCl

Explanation:

To find grams of NaCl, you need to (1) convert moles of Na to moles of NaCl (via mole-to-mole ratio from reaction) and (2) convert moles of NaCl to grams (via molar mass from periodic table). The final answer should have 3 significant figures based on the given measurement.

2 Na + Cl₂ --> 2 NaCl

Molar Mass (NaCl) = 22.99 g/mol + 35.45 g/mol

Molar Mass (NaCl) = 58.44 g/mol

47.2 moles Na 2 moles NaCl 58.44 grams

---------------------- x --------------------------- x ------------------------- =
2 moles Na 1 mole NaCl

= 2,758.368 grams NaCl

= 2,760 grams NaCl

5 0

2 years ago

Suppose you wanted to dissolve 40.0 g NaOH in enough H2O to make 6.00 dm3 of solution

dezoksy [38]

Molarity of solution = 1.6 M

<h3>Further explanation</h3>

Given

40 g NaOH

6 L solution

Required

Steps to solve the problem of molarity

Solution

No additional information about the question.

If you want to make the solution above, then we just need to put the existing NaOH (40 g) into 6 L of water, then do the stirring (in a warm temperature above the hot plate will speed up the NaOH dissolving process)

But if you want to know the molarity of a solution, then