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vivado [14]
3 years ago
10

Complete the following nuclear equations by entering the missing isotope:

Chemistry
1 answer:
Margarita [4]3 years ago
3 0

The nuclear equation :

₈₂²¹⁴Pb ⇒ ₈₃²¹⁴Bi + ₋₁⁰e

<h3>Further explanation </h3>

Given

₈₂²¹⁴Pb

beta β ₋₁e⁰ particles

Required

Nuclear equation

Solution

Radioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,  

  • alpha α particles ₂He⁴
  • beta β ₋₁e⁰ particles
  • gamma particles ₀γ⁰
  • positron particles ₁e⁰
  • neutron ₀n¹

The principle used is the sum of the atomic number and mass number before and after the decay reaction is the same

The reaction

₈₂²¹⁴Pb ⇒ X + ₋₁⁰e

The element X has

-the atomic number = 82 + 1 = 83

-the mass number = 214

In the periodic system, the element with atomic number 83=Bismuth

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Answer:

iron = 15000 kg 95% sulfuric acid = 27646.32 kg

Explanation:

The molar volume to a gas is 22.4 L, which means that a mole of a given gas at 0°C and 1 atm will have a volume os 22.4 L.

1 m3 - 1000 L

4870 m3 - x

x = 4870 * 1000 = 4.87 *10^6 L

1 mole - 22.4 L

y mole - 4.87 * 10^6 L

y = \frac{4.87 * 10^6}{22.4} = 2,17 *10^5 moles (if 100% of the H2 is used)

as 20% of it is lost, we need to know how much more we need to use.

80% - 2.17 * 10^5 moles

100% - z

z = \frac{2.17* 10^7}{80} = 2,68*10^5 moles

so we would need 2.68*10^5 moles of iron and sulfuric acid.

1 mole of iron - 56 *10^-3 kg

2.68*10^5 moles - t

t= 2.68*56 *10^2 = 15000 kg

1 mole of sulfuric acid - 98 * 10^-3 kg

2.68*10^5 - u

u = 2.68*98 *10^2 = 26264 kg (if 100%)

95% - 26264 kg

100% - v

v = \frac{26264 * 100}{95} = 27646.32 kg

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True or false. the arrow labeled C represents a transfer of chemical energy to mechanical energy. explain why this is true or fa
ArbitrLikvidat [17]
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When a pure substance melts does its particles get larger
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What is the momentum of a 5 kg object that has a velocity of 1.2 m/s?
saveliy_v [14]

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3 years ago
How many liters of hydrogen gas is formed from the complete reaction of 15.2 g C? Assume that the hydrogen gas is collected at a
ira [324]

Answer:

38 L

Explanation:

There is some info missing. I think this is the original question.

<em>Consider the chemical reaction: C(s) + H₂ O(g) ⟶ CO(g) + H₂ (g). How many liters of hydrogen gas is formed from the complete reaction of 15.2 g C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and a temperature of 360 K.</em>

<em />

Step 1: Write the balanced equation

C(s) + H₂ O(g) ⟶ CO(g) + H₂ (g)

Step 2: Calculate the moles corresponding to 15.2 g of C

The molar mass of C is 12.01 g/mol.

15.2g \times \frac{1mol}{12.01g} = 1.27 mol

Step 3: Calculate the moles of H₂ produced from 1.27 moles of C

The molar ratio of H₂ to C is 1:1. The moles of H₂ produced are 1/1 × 1.27 mol = 1.27 mol.

Step 4: Calculate the volume of H₂

We will use the ideal gas equation.

P \times V = n \times R \times T\\V = \frac{n \times R \times T}{P} = \frac{1.27mol \times \frac{0.0821atm.L}{mol.K}  \times 360K}{1.0atm}= 38 L

3 0
4 years ago
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