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3 years ago

7

"whenever a stress is applied to a system at equilibrium, the equilibrium shifts in such way as to undo the effect of the stress

imposed"

1 answer:

Nady [450]3 years ago

3 0

IDK I JUST NEED POINTS, BTW IM VERY DUMB

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Aqueous solutions of barium nitrate and potassium phosphate are mixed. What is the precipitate and how many molecules are formed

kykrilka [37]

Aqueous solutions of barium nitrate and potassium phosphate are mixed. What is the precipitate and how many molecules are formed?

Barium nitrate has a chemical symbol of Ba(NO3)2 and potassium phosphate has a chemical symbol K2PO4. The reaction between these two is a double replacement reaction yielding barium phosphate and potassium nitrate.

The chemical equation representing the reaction is,

Ba(NO3)2 + K2PO4 à KNO3 + BaPO4

8 0

3 years ago

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What is the molarity of a solution of sulfuric acid if 49.0 mL of it are neutralized by a titration

vaieri [72.5K]

Answer:

THE MOLARITY OF THE ACID IS 0.232M

Explanation:

Molarity is the number of moles of solute per liter of a solution.

In titration, the molarity of the acid and the molarity of the base are related by this equation:

Ca VA / CbVb = na / nb

Ca = concentration of the acid = ?

Va = volume of the acid = 49 mL

Cb = concentration of the base = 0.333M

Vb = volume of the base = 68.4mL

Na = number of mole of acid = 1

Nb = number of mole of base = 2

Equation for the reaction:

H2SO4 + 2NaOH --------> Na2SO4 + 2H2O

Solving for the molarity of the acid, we have :

Ca = CbVbNa / VaNb

Ca = 0.333M * 68.4mL * 1 / 49mL *2

Ca = 22.7772 * 10^-3 / 98 *10^-3

Ca = 0.232M

The molarity of the acid is therefore 0.232M.

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3 years ago

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RUDIKE [14]

Answer:

Explanation:

3.12

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3 years ago

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Look back at your data and your regression equation. (Sample data is shown to the right, with X= pressure and Y=volume.) click a

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please help!!! The gravitational force between the objects depends on the __________ of the objects and the ___________ between

postnew [5]

The gravitational force between the objects depends on the mass of the objects and the distance between them.

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