What mass of Sodium Iodide (NaI) will react with 7.82 grams of Chlorine (Cl2)? 2NaI + Cl2 -------------> 2NaCl + I2

Answers

Answer 1

Answer:

16.49g

Explanation:

Given parameters:

Mass of Chlorine gas = 7.82g

Unknown:

Mass of NaI  = ?

Solution:

The reaction equation is given as:

            2NaI  + Cl₂  →  2NaCl + I₂  

To solve this problem, find the number of moles of the known specie first;

 Number of moles of Cl₂  = [tex]\frac{mass}{molar mass}[/tex]  

   Molar mass of Cl₂   = 2(35.5)  = 71g/mol

  Number of moles = [tex]\frac{7.82}{71}[/tex]   = 0.11mole

From the balanced reaction equation;

            2 mole of Cl₂ will react with 2 mole of NaI

          0.11 mole of Cl₂ will also react with 0.11mole of NaI

Mass of NaI  = number of moles x molar mass

  Molar mass of NaI  = 23 + 126.9  = 149.9g/mol

Mass of NaI  = 0.11 x 149.9 = 16.49g


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WILL GIVE BRAINLIEST

If 175.0g of nitrogen is reacted with 250.0g of hydrogen, what is the theoretical yield of the reaction? What is the excess reactant? What is the limiting reactant? Show your work.

Answers

Answer:

Nitrogen gas is the limiting reactant

Hydrogen gas is the excess reactant

The theoretical yield is 425 g of ammonia

Explanation:

Equation of reaction: 3H2 + N2 ---> 2NH3

From the equation of reaction, 3 moles of hydrogen gas reacts with 1 mole of nitrogen to produce 2 moles of ammonia gas.

Molar mass of hydrogen gas = 2.0 g

Molar mass of nitrogen gas = 14.0 g

Molar mass of ammonia gas = 17.0 g

Number of moles of hydrogen gas in 250 g = 250/2 = 125 moles

Number of moles of nitrogen gas in 175 g = 175/14 = 12.5 moles

Mole ratio of Hydrogen to Oxygen = 125/12.5 = 10 : 1

Therefore, nitrogen gas is the limiting reactant.

Hydrogen gas is the excess reactant

14 g of nitrogen gas produces 17 × 2 g of ammonia = 34 g of ammonia

175 g will produce (34 × 175)/14 = 425 g of ammonia

Therefore the theoretical yield is 425 g of ammonia

How can air pollution affect plants?

Answers

Answer:

yes air pollution can affect a plants health

Explanation:

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