All categories

3 years ago

Water can be formed in the following reaction:

Chemistry

1 answer:

Komok [63]3 years ago

3 0

The moles of oxygen gas (O2) that is needed is 4 moles

Explanation

2H2 +O2 → 2H2O

The moles of O2 is determined using the mole ratio of H2:O2

that is from equation above H2:O2 is 2:1

If the moles of H2 is 8 moles therefore the moles of O2

= 8 moles x 1/2 = 4 moles

You might be interested in

In run 1, you mix 8.0 mL of the 43 g/L MO solution (MO molar mass is 327.33 g/mol), 2.60 mL of the 0.040 M SnCl2 in 2 M HCl solu

Phantasy [73]

The concentration of [Sn⁺²] will be calculated by first calculating the moles of SnCl₂ added as these moles will give us the moles of [Sn⁺²] ion.

Moles of SnCl₂ = molarity X volume = 0.04 X 2.60 = 0.104 milli moles [as volume is in mL]

The moles of [Sn⁺² = 0.104 mmol

the total volume in solution = volume due to MO + volume due to SnCl₂ + volume due to HCl + volume due to NaCl

Total volume = 8+2.60+5.43+3.73= 19.76 mL

Concentration = moles / volume

concentration [Sn⁺²] = 0.104mmol / 19.76 mL = 0.0053 mol / L

4 0

3 years ago

Since 2000, there have only been five reported cases of this once deadly childhood disease in the United States: diphtheria. Tod

solmaris [256]

D. Viral disease
Because it’s a virus that spreads around to other people and need a vaccine to combat it

8 0

3 years ago

what happens to the water level of water when you heat it and then set it aside for it to cool? what will happen THIS IS URGENT

IceJOKER [234]

Well it depends on how long you let it boil, if it boils for a long time then the water levels will slowly decrease, if u let it sit for a while you can drink it.

6 0

3 years ago

Eaterfication experiment <br>

Schach [20]

Answer:

Do you mean Esterification experiment?

Explanation:

8 0

3 years ago

The valency of sodium is one give reason

galben [10]

Answer:

here

Explanation:

The valency of sodium is 1 because it loses it's one valence electron to gain its octet state (state of having 8 electrons in shell) during the chemical reaction.

Please mark me as brainliest

3 0

3 years ago