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3 years ago

If you had 15 moles of Oxygen (O2), how many moles of water (H2O) would you be able to make?

Chemistry

1 answer:

larisa [96]3 years ago

5 0

Answer:

30 moles of water will produced.

Explanation:

Given data:

Number of moles of O₂ react = 15 mol

Number of moles of water formed = ?

Solution:

Chemical equation:

2H₂ + O₂ → 2H₂O

Now we will compare the moles of water with oxygen.

O₂ : H₂O

1 : 2

15 : 2×15 = 30 mol

30 moles of water will produced.

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By titration it is found that 49.3 ml of 0.151 m naoh(aq) is needed to neutralize 25.0 ml of hcl(aq). calculate the concentratio

Viefleur [7K]

0.298 M The balanced equation for the reaction is HCl + NaOH = H2O + NaCl So for every mole of NaOH used, one mole of HCl is neutralized. So let's determine how many moles of NaOH we used. That will simply be the volume (in liters) of solution multiplied by the molarity. So 0.0493 L * 0.151 mol/L = 0.0074443 mol Because of that 1:1 ratio, we now know that 0.0074443 moles of HCl was in the sample. Since molarity is moles per liter, a little division will give us the molarity of the HCl solution. So 0.0074443 mol / 0.025 L = 0.297772 mol/M = 0.297772 M Rounding to 3 significant figures gives 0.298 M.

7 0

3 years ago

Consider the above reaction using 25.0 mL of tert-butyl alcohol (d = 0.786 g/mL) with 60.0 mL of concentrated hydrobromic acid (

Liono4ka [1.6K]

Answer:

Theoretical yield: 36,3g

Percent yield: 71,9%

Explanation:

The reaction of tert-butyl alcohol with hydrobromic acid to produce tert-butyl bromide is a 1:1 reaction.

Moles of tert-butyl alcohol in 25,0 mL are:

25,0mL × (0,786g / mL) × (1mol / 74,12g) = 0,265 moles of tert-butyl alcohol

Moles of hydrobromic acid are:

60,0mL× 47,0% × (1,49g / mL) × (1mol / 80,91g) = 0,519 moles of HBr

As moles of tert-butyl alcohol are less than moles of HBr, limiting reactant is tert-butyl alcohol.

Theoretical yield of tert-butyl bromide in grams is:

0,265 moles × (137,02g / 1mol) = 36,3g

Percent yield:

26,1g / 36,3g × 100 = 71,9%

The reactions are in the image.

There are many ways to produce alkyl halides from primary and secondary alcohols. The reaction in this case is the Appel reaction.

The reaction of tertiary alkyl halides may undergo a hydrolysis reaction -under proper conditions- to form an alcohol and a hydrogen halide.

I hope it helps!

5 0

4 years ago

One method of favoring the formation of an ester is to add excess acetic acid. Suggest another method, involving the right-hand

Inessa [10]

Answer: decrease the temperature of the reaction

Explanation:

CH3COOH + CH3CH2OH ⇌ CH3COOCH2CH3 + H2O

The formation of an ester is an exothermic reaction. Therefore, a decrease in the temperature of the reaction will favour the production of ester.

7 0

3 years ago

What is the meaning of blood?

Vanyuwa [196]

Blood is a red coloured fluid which consists of two parts plasma and corpuscles

6 0

3 years ago

How many moles of bromine (Br) atoms are in a sample of 2.03 × 1024 atoms?

andriy [413]

The mole is simply an Avogadros number of anything( in this case Br atoms)

The Avogadro number is 6.022 x 10^23.

So no of moles = No of atoms / 6.022 x 10^23 = 2.03 x 10^24 / 6.022 x 10^23 = 3.37 Moles.

3 0

4 years ago

Read 2 more answers