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4 years ago

How do the properties of an atom compare(similar or different) to the properties of :

1 answer:

6 0

An isotope of an atom is a neighbour atom but which has more or less neutrons
an ion is when that atom has more or less electrons therefore giving an imbalance in the structure
hope this helps!

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the reaction of 50 mL of gas with 50 mL of gas via the equation: Cl2(g) + C2H4(g) ➔ C2H4Cl2 (g) will produce a total of ________

spin [16.1K]

Explanation:

The given data is as follows.

50 ml of $Cl_{2}$ , 50 ml of $C_{2}H_{4}$

And, it is known that at STP 1 mole of a gas occupies 22.4 L. Hence, moles present in 50 ml of gas are as follows.

$\frac{50}{22.4 \times 1000}$ (As 1 L = 1000 ml)

= $2.23 \times 10^{-3}$ moles

So, according to the given equation $2.23 \times 10^{-3}$ moles of $Cl_{2}$ reacts with $2.23 \times 10^{-3}$ moles of $C_{2}H_{4}$ .

Hence, moles of $C_{2}H_{4}Cl_{2}$ is equal to the moles of $C_{2}H_{4}$ and $Cl_{2}$ .

Therefore, moles of $C_{2}H_{4}Cl_{2}$ = $2.23 \times 10^{-3}$ moles

1 mole of $C_{2}H_{4}Cl_{2}$ = 22.4 L

$2.23 \times 10^{-3}$ moles = $22.4 \times 2.23 \times 10^{-3} moles$

= 50 ml of product

Thus, we can conclude that 50 ml of products if pressure and temperature are kept constant.

5 0

4 years ago

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li (s) + N2 (g) → 2Li3N (s) In a particular ex

seraphim [82]

Answer: 6.71 g

Explanation: $6Li(s)+N_2(g)\rightarrow 2Li_3N$

${\text{no of moles}}=\frac{\text{Given mass}}{\text{Molar mass}}$

${\text {moles of lithium}}=\frac{4g}{6.914g/mol}=0.578moles$

$\text{moles of nitrogen}=\frac{4g}{28g/mol}=0.143moles$

Limiting reagent is the reagent which limits the formation of product. Excess reagent is one which is in excess and thus remains unreacted.

Thus lithium is the limiting reagent and nitrogen is the excess reagent.

As can be seen from the balanced chemical equation, 6 moles of lithium reacts with 1 mole of nitrogen to give 2 moles of lithium nitride.

Thus 0.578 moles of lithium react with 0.096 moles of nitrogen.

6 moles of lithium give = 2 moles of lithium nitride

Thus 0.578 moles of lithium give= $\frac{2}{6}\times {0.578}=0.19moles$ of lithium nitride.

Mass of lithium nitride $Li_3N={\text {no of moles}}\times {\text {Molecular mass}}$

Mass of lithium nitride $Li_3N$ = ${0.192moles}\times {34.83g/mol}=6.71g$

8 0

3 years ago

How many protons are in nitrogen

Hatshy [7]

Answer:

Explanation:

There are 7 protons in nitrogen

4 0

3 years ago

Read 2 more answers

What is the oxidation number of iodine in kio4?

cestrela7 [59]

What is the oxidation number of iodine in kio4? -7?

3 0

3 years ago

What is the [ch3co2-]/[ch3co2h] ratio necessary to make a buffer solution with a ph of 4.34? ka = 1.8 × 10-5 for ch3co2h?

xeze [42]

According to Henderson–Hasselbalch Equation,

pH = pKa + log [Acetate] / [Acetic Acid]

As,
pKa = -log Ka
pKa = -log (1.8 × 10⁻⁵)
pKa = 4.74
So,
pH = 4.74 + log [Acetate] / [Acetic Acid]

4.34 = 4.74 + log [Acetate] / [Acetic Acid]

4.34 - 4.74 = log [Acetate] / [Acetic Acid]

-0.40 = log [Acetate] / [Acetic Acid]

Taking Antilog on both sides,

[Acetate] / [Acetic Acid] = 0.398

5 0

3 years ago