— A scientist combines 14 grams of potassium nitrate with an unknown amount of potasslum chloride. If the total mass of the products

Question

— A scientist combines 14 grams of potassium nitrate with an unknown amount of
potasslum chloride. If the total mass of the products is 27.6 grams, what was the
mass of the potassium chloride?
Cada

in progress 0
Doris 3 years 2021-08-06T21:28:53+00:00 1 Answers 9 views 0

Answers ( )

  1. RuslanHeatt
    0
    2021-08-06T21:30:47+00:00
    Reply

    Answer:

    The unknown amount of potassium chloride is 13.6 grams.            

     

    Explanation:

    The reaction of 14 grams of KNO₃ with KCl produces a total mass of 27.6 grams of the products.

    The law of conservation of mass tells us that the total mass of the reactants must be the same that the total mass of the products. So, we can find the mass of KCl as follows:

    m_{r} = m_{p}

    Where r is for reactants and p is for products

    m_{KNO_{3}} + m_{KCl} = m_{p}

    14 g + m_{KCl} = 27.6 g

    m_{KCl} = 27.6 g - 14 g = 13.6 g

    Therefore, the unknown amount of potassium chloride is 13.6 grams.           

    I hope it helps you!

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )