All categories

4 years ago

What are the different elements found in naphthalene and how many atoms of each are found in the formula. C10H8

1 answer:

8 0

Calculating the molar mass of naphthalene (C10H8)

molar mass = 10 x (12.01) + 8(1.008)

= 120.1 + 8.064 = 128.164 g/mol

You might be interested in

5 of 7 What percentage of a material will persist after 80 minutes if it's half life is 20 minutes?

malfutka [58]

Answer:

Explanation:

6 0

3 years ago

How many molecules of iodine are produced when 9.3×1026 molecules of chlorine gas react with lithium iodide?

Bas_tet [7]

Answer:

$9.3x10^{26}molec\ I_2$

Explanation:

Hello!

In this case, considering the balanced chemical reaction:

Cl₂ + 2LiI ⇒ 2LiCl + I₂

We can see there is a 1:1 mole ratio between the produced iodine and the used chlorine, thus, we infer that the number of molecules of iodine given those of chlorine turn out:

$9.3x10^{26}molec\ Cl_2*\frac{6.022x10^{23}molec\ I_2}{6.022x10^{23}molec\ Cl_2} =9.3x10^{26}molec\ I_2$

Best regards!

8 0

3 years ago

Read 2 more answers

Suppose that H2SO4 was used in the reaction instead of HCl. How many moles of NaOH would neutralize 1 mole of H2SO4?

arlik [135]

Answer: Hence, 2 moles of NaOH would neutralize 1 mole of $H_2SO_4$

Explanation:

$HCl+NaOH\rightarrow NaCl+H_2O$

One mole of hydrochloric acid neutralizes one mole of sodium hydroxide to give one mole of sodium chloride and one mole of water

When sulfuric acid is used in the place of HCl , 1 mole of sulfuric acid will neutralizes the 2 mole of sodium hydroxide and gives one mole of sodium sulfate and 2 moles of water. As we can see from the reaction:

$H_2SO_4+2NaOH\rightarrow Na_2SO_4+2H_2O$

Hence, 2 moles of NaOH would neutralize 1 mole of $H_2SO_4$

5 0

3 years ago

Read 2 more answers

Identify the limiting reagent and the moles of urea, (NH2)2CO(aq), produced given the following balanced chemical reaction and i

FinnZ [79.3K]

Answer:

Limiting reagent: NH3

moles of Urea = 0.45 moles

Explanation:

To do this, all we need to do is to see the balanced reaction which is:

2NH3 + CO2 ----------> (NH2)2CO + H20

Now, the leading numbers in the molecules mean in other words, the theorical moles that are needed to get this reaction.

So according to the reaction, 2 moles of NH3 reacts with 1 mol of CO2. Now, let's see how many moles do we actually have with the initial data:

moles of NH3 = 15.33/17.03 = 0.9 moles

moles of CO2 = 0.6 moles

Now that we have the moles, let's see which is the limiting reagent:

If:

2 NH3 -------> 1 CO2 then:

0.9 -----------> X

Solving for X:

X = 0.9 * 1 / 2 = 0.45 theorical moles of CO2

And we have 0.6 moles of CO2, which mean that we have in excess the CO2, therefore, the limiting reagent is the NH3. Let's prove it:

2NH3 -------> 1 CO2

X ----------> 0.6 moles

X = 0.6 * 2 / 1 = 1.2 theorical moles of NH3

And we have 0.9 moles of NH3. So this is a proof that NH3 is the limiting reagent as we state before.

As the NH3 is the limiting reagent, this means that in the reaction all the moles of NH3 will be consumed in the reaction and then, it will produce moles of urea.

Remanent moles of CO2 = 0.6 - 0.45 = 0.15 moles of CO2

moles of NH3 at the end of reaction: 0

moles of urea = 0.45 moles

7 0

3 years ago

Can someone help me with this?

Maksim231197 [3]

Answer:

The growth of any plant is controlled by many factor and it depends on them.

Explanation:

The words are sorted according to their genetic factors and the environment factors by the category on which they effect and impact the growth of a plant.

Genetic factor :

Waxy leaves, bad tasting leaves, disease, leaf structure, types of stem, plant structure, reproduction, types of roots.

Environment factor : sunlight, drought, fire, flood, heat wave, insects, wind, space, pH of soil, temperature, pollution, terrain, soil conditions, lack of air.

8 0

3 years ago