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Alexeev081 [22]
2 years ago
6

Aqueous potassium chloride will react with which one of the following to form a precipitation reaction?

Chemistry
1 answer:
Svetllana [295]2 years ago
5 0

Answer:

lead (II) chlorate

Explanation:

precipitate means not soluble in water

potassium chlorate is not very soluble in water, it precipitates and may be collected by filtration

lead(II) chloride can be made as a white precipitate by adding a solution containing chloride ions to lead(II) nitrate solution

thoughtcocom chemguidecouk

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Calculate the mass of hydrogen formed when 27 g of aluminum reacts with excess hydrochloric acid according to the balanced equat
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6.069 grams is the  mass of hydrogen formed when 27 g of aluminum reacts with excess hydrochloric acid.

Explanation:

Balanced equation for the reaction:

2 Al + 6 HCl → 2 AlCl₃ + 3 H₂

data given:

mass of aluminum = 27 grams

atomic mass of one mole of aluminum = 26.89 grams/mole

formula to calculate number of moles:

number of moles = \frac{mass}{atomic mass of one mole}

number of moles = \frac{27}{26.89}

                              = 1.004 moles of aluminum will react

from the balanced equation:

2 moles of Al reacted to form 3 moles of H2

1.004 moles of Al will produce x moles of H2

\frac{3}{2} = \frac{x}{1.004}

x = 3.012 moles of H2 will be formed.

mass will be calculated as number of moles multiplied by atomic weight

mass of 3.012 moles of hydrogen ?(atomic weight of one mole H2 = 2.015 grams)

= 3.012 x 2.015

= 6.069 grams of H2 will be formed.

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3 years ago
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Can you light a diamond on fire
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