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3 years ago

Draw the structure 2 butylbutane

Chemistry

1 answer:

k0ka [10]3 years ago

5 0

Answer:

please look at the picture below.

Explanation:

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How many moles of Mg(OH)2(aq) would be required to neutralize 6.0 mol HCl(aq)?

jekas [21]

Answer:

$3.0molMg(OH)_2$

Explanation:

Hello there!

In this case, for these types of acid-base neutralizations, it is crucial to firstly set up the chemical reaction taking place between the acid and the base; in this case HCl and Mg(OH)2 respectively, whose products are obtained by switching around the anions and cations as shown below:

$HCl(aq)+Mg(OH)_2(aq)\rightarrow MgCl_2(aq)+H_2O(l)$

Which must be balanced to accurately predict the mole ratio on the reactants side:

$2HCl(aq)+Mg(OH)_2(aq)\rightarrow MgCl_2(aq)+2H_2O(l)$

Whereas we can see a 2:1 mole ratio of the acid to the base; thus, the moles of Mg(OH) required for the neutralization of 6.0 moles of HCl turn out to be:

$6.0molHCl*\frac{1molMg(OH)_2}{2molHCl} \\\\=3.0molMg(OH)_2$

Best regards!

5 0

3 years ago

Choose the mole ratio below that is INCORRECT based on the given balanced equation:

sdas [7]

Answer:

4 moles CO₂ = 4 moles O₂

Explanation:

The incorrect mole ratio is 4 moles CO₂ = 4 moles O₂.

Let us write the reaction equation:

2C₂H₅OH + 7O₂ → 4CO₂ + 6H₂O

To write mole ratios in a chemical reaction, we must ensure the equation is balanced.

Since the given expression is balanced,

Then 4 moles CO₂ = 4 moles O₂ is not correct;

Rather;

4 moles CO₂ = 7 moles O₂ is the right expression

6 0

3 years ago

According to the following reaction, what volume in milliliters of 0.244M KCl(aq) solution is required to react exactly with 50.

Elodia [21]

Answer:

There is 86.1 mL of KCl needed

Explanation:

Step 1: Data given

Molarity of KCl = 0.244 M

Volume of a 0.210 M Pb(NO3)2 = 50.0 mL = 0.05 L

Step 2: The balanced equation

2KCl(aq) + Pb(NO3)2(aq) -> PbCl2(s) + 2KNO3(aq)

Step 3: Calculate moles Pb(NO3)2

moles Pb(NO3)2 =molarity * volume

moles Pb(NO3)2 = 0.210 M * 0.05 L

moles Pb(NO3)2 = 0.0105 moles

Step 4: Calculate moles of KCl

For 1 mole of Pb(NO3)2 we need 2 moles of KCl

moles KCl required = 0.0105 * 2 =0.0210 moles

Step 5: Calculate volume of KCl

Volume = moles KCl / molarity KCl

V = 0.0210 moles / 0.244 M=0.0861 L = 86.1 mL

There is 86.1 mL of KCl needed

6 0

3 years ago

Need Chemistry help ASAP! Which of the following statements regarding chemical equilibrium is NOT necessarily true?

guajiro [1.7K]

So confusing try to explain more plz

3 0

3 years ago

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Which phrase describes the mass of an ice cube? a. amount of space that the cube occupies

Rzqust [24]

I think the correct answer from the choices listed above is option C. The mass of an ice cube is the total amount of water in the ice cube. Ice is the solid form of water. Hope this answers the question. Have a nice day. Feel free to ask more questions.

5 0

3 years ago

Read 2 more answers