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damaskus [11]
3 years ago
11

Please help me with this I will give out extra points with the brain thing if you help me with this science question 3/5 image b

elow. I promise

Chemistry
2 answers:
dybincka [34]3 years ago
8 0

Answer:

A) 200 m/s2

Explanation:

Force is the push or pulls on an object with mass that causes it to change velocity or to accelerate.

Force represents a vector, which means it has both magnitude and direction.

Given:

Mass of metal ball = 0.025 kg

Force = 5 N

To Find:

Acceleration, = ?

Solution:

Formula:

Ilya [14]3 years ago
3 0
Answer is 200 m/s2 lol
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How many grams are needed to make 2 L of solution of 4 M LiNO3?
katen-ka-za [31]

Answer:

552 g of LiNO₃

Explanation:

From the question given above, the following data were obtained:

Volume of solution = 2 L

Molarity of LiNO₃ = 4 M

Mass of LiNO₃ =?

Next, we shall determine the number of mole of LiNO₃ in the solution. This can be obtained as follow:

Volume of solution = 2 L

Molarity of LiNO₃ = 4 M

Mole of LiNO₃ =?

Molarity = mole /Volume

4 = mole of LiNO₃ / 2

Cross multiply

Mole of LiNO₃ = 4 × 2

Mole of LiNO₃ = 8 moles

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Mole of LiNO₃ = 8 moles

Molar mass of LiNO₃ = 7 + 14 + (16×3)

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Mass of LiNO₃ =?

Mole = mass /Molar mass

8 = Molar mass of LiNO₃ /69

Cross multiply

Molar mass of LiNO₃ = 8 × 69

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