3 years ago

HOW TO DO STOICHIOMETRY

Chemistry

1 answer:

stellarik [79]3 years ago

8 0

Answer:

1.Balance the equation.

2.Convert units of a given substance to moles.

3.Using the mole ratio, calculate the moles of substance yielded by the reaction.

4.Convert moles of wanted substance to desired units.

Explanation:

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Nickel has 28 protons if it has 31 neutrons, what is it’s atomic mass?

zaharov [31]

D) 59 (protons+neutrons=mass)

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3 years ago

For the reaction 2A(g) â B(g), the equilibrium constant is Kp = 0.76. A reaction mixture initially contains 4.0 atm of gas (PA =

timofeeve [1]

Answer: (a) The reaction mixture will proceed toward products.

Explanation:

Equilibrium constant is defined as the ratio of pressure of products to the pressure of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_p$

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

For the given chemical reaction:

$2A(g)\rightleftharpoons B(g)$

The expression for $Q_p$ is written as:

$Q_p=\frac{p_B}{(p_A)^2}$

$Q_p=\frac{(2.0)}{(2.0)^2}$

$Q_p=0.5$

$K_p=0.76$

Thus as $K_p>Q_p$ , the reaction will shift towards the right i.e. towards the product side.

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3 years ago

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mart [117]

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Biotechnology seems to cause much controversy. Why is this field more likely to draw attention from the public?

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Hello There!

The correct answer is B.

Hope This Helps You!
Good Luck :)

- Hannah ❤<span />

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4 years ago

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HOW TO DO STOICHIOMETRY​

HOW TO DO STOICHIOMETRY