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4 years ago

Juan lives 100 m away from Bill. What is Juan's average speed if he reaches Home in 50 s

Chemistry

2 answers:

Mekhanik [1.2K]4 years ago

6 0

Take the miles and divide it by the 50s i believe

kvv77 [185]4 years ago

3 0

2 m/sec.
his average velocity divided by the travel time. is this helpful?

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What is the pH of a solution with (H3O+)=5.6x10-2M?

balu736 [363]

Answer:

Explanation:

Given parameters:

Concentration of H₃O⁺ = 5.6 x 10⁻²M

Solution:

To solve for the concentration of H₃O⁺ in the solution, we simply use the expression below:

pH = -log₁₀[H₃O⁺]

where [H₃O⁺] = 5.6 x 10⁻²M is the concentration of H₃O⁺

pH = -log₁₀[5.6 x 10⁻²] = - x -1.25 = 1.25

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3 years ago

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A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration of 21.0 gL⁻¹. The geochemist

dedylja [7]

Answer:

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Explanation:

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= In 1 L of lake Parson water = 21.0 g of salt

The concentration of salt in several nearby non-isolated lakes = 6.67 g/L

The salt concentration in Lake Parsons before it became isolated = 6.67 g/L

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If 1 L of lake Parson water has 6.67 g of salt. Then 21.0 grams of salt will be in ;

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Water evaporated = 3.15 L - 1 L = 2.15 L

The percentage of Lake Parsons which has evaporated since it became isolated:

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3 years ago

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xz_007 [3.2K]

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A cubic meter is about the same as the volume occupied by a _____.

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