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3 years ago

In the following reaction, how many liters of o2 will produce 43.62 liters of co2 at stp? c3h8 5 o2 3 co2 4 h2o

Chemistry

2 answers:

densk [106]3 years ago

7 0

Answer: 72.7 L

Explanation:

$C _3H_8+5O_2\rightarrow 3CO_2+4H_2O$

As can be seen from the balanced chemical equation:

3 moles of carbon dioxide are produced by 5 moles of oxygen.

According to avogadro's law, 1 mole of every gas occupies 22.4 L at STP.

$3\times 22.4=67.2L$ of carbon dioxide are produced by $5\times 22.4=112L$ of oxygen at STP

Thus 43.62 L of carbon dioxide are produced by = $\frac{112L}{67.2}\times 43.62=72.7L$ of oxygen at STP

Thus 72.7 liters of oxygen will produce 43.62 liters of carbon dioxide at STP.

antoniya [11.8K]3 years ago

4 0

The balanced chemical reaction:

C3H8 + 5O2 = 3CO2 + 4H2O

We are given the amount of the carbon dioxide to be produced. This will be the starting point of our calculations.

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Three different atoms or atomic cations with 3 electrons.

sveticcg [70]

Answer:

$Li, Be^+, B^{2+}$

Explanation:

To answer this question successfully, we need to remember that atoms are neutral species, since the number of protons, the positively charged particles, is equal to the number of electrons, the negatively charged particles. That said, we may firstly find an atom which has 3 electrons (and, as a result, 3 protons, as it should be neutral).

The number of protons is equal to the atomic number of an element. We firstly may have an atom with 3 protons and 3 electrons (atomic number of 3, this is Li).

Similarly, we may take the atomic number of 4, beryllium, and remove 1 electron from it. Upon removing an electron, it would become beryllium cation, $Be^+$ .

We may use the same logic going forward and taking the atomic number of 5. This is boron. In this case, we need to remove 2 electrons to have a total of 3 electrons. Removal of 2 electrons would yield a +2-charged cation: $B^{2+}$ .

6 0

3 years ago

1 point

lawyer [7]

Answer:

Explanation:

you're moving the decimal 8 spots to the left so it can only be B

6 0

2 years ago

How do you know when a chemical equation is balanced?

kirza4 [7]

Both sides of the equation would be equal.

Hope This Helps You!

6 0

3 years ago

How many milliliters of a 1.5 m h2so4 are needed to neutralize 35ml sample of a 1.5 m solution?

DochEvi [55]

Answer:

1) 17.5 mL

Explanation:

Hello,

In this case, the reaction between sulfuric acid and potassium hydroxide is:

$H_2SO_4+2KOH\rightarrow K_2SO_4+2H_2O$

In such a way, we notice a 1:2 molar ratio between the acid and the base, therefore, at the equivalence point we have:

$2*n_{acid}=n_{base}$

And in terms of concentrations and volumes:

$2*M_{acid}V_{acid}=M_{base}V_{base}$

Thus, we solve for the volume of acid:

$V_{acid}=\frac{M_{base}V_{base}}{2*M_{acid}} =\frac{35mL*1.5M}{2*1.5M} \\\\V_{acid}=17.5mL$

Best regards.

5 0

3 years ago

Determine the formula weight of BeCl₂.

tia_tia [17]

Be= Beryllium= weight 9.01
Cl= Chlorine= weight 35.45
Since there are 2 Chlorine, you have to add Chlorine twice.
9.01 + 35.45 + 35.45= 79.91

Answer: 79.91
(This answer does not include sig.figs)

4 0

3 years ago