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MatroZZZ [7]
3 years ago
7

Sodium fluoride is added to pure water and stirred to dissolve. Compared to pure water, the new solution is__________.

Chemistry
1 answer:
NeX [460]3 years ago
8 0

Answer:

Basic

Explanation:

Sodium\ Fluoride\ +\ Water = Hydrogen\ Fluoride +\ Sodium\ Hydroxide  

NaF + H_{2}O\rightarrow HF + NaOH

Sodium fluoride, NaF, is a soluble salt that dissociates completely in aqueous solution to give sodium cations, Na+, and fluoride anions, F-

NaF\rightarrow Na^{+} +F^{-}

and when it dissolve in water the pH of the solution becomes greater than seven thereby becoming basic.

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Law of action-reaction
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Answer:

Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.

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How many ml of 0.500 m naoh would be required to exactly neutralize 220.0 ml of 0.150 m hcl?
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3 years ago
What is the molarity of a solution that contains 87.75g of NaCI in 500.ml of solution
Brut [27]

Answer:

M = 3.0 mol/L.

Explanation:

  • We can calculate the molarity of a solution using the relation:

<em>M = (mass x 1000) / (molar mass x V)</em>

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  • mass is the mass of the solute (g) (m = 87.75 g of NaCl).
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  • V is the volume of the solution (ml) (V = 500.0 ml).

∴ M = (mass x 1000) / (molar mass x V) = (87.75 g x 1000) / (58.44 g/mol x 500.0 ml) = 3.0 mol/L.

6 0
3 years ago
3.) this graph shows the rates of reaction in a chemical reaction with and without the addition of an enzyme
mars1129 [50]

Answer:

a. Concave down

Linear increasing

b. Increases the reaction rate

c. The reaction approaches the saturation point of the enzyme

Explanation:

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For the reaction without enzyme, the shape is linear and increasing. Increase in the concentration of the substrate will increase the number of effective collisions that lead into product formation leading to an increased rate of the chemical reaction

b. The enzyme increases the proportion of effective combination of substrates to form the products

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5 0
3 years ago
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