When aqueous solutions of k₂so₄ and pb(no₃)₂ are combined, pbso₄ precipitates. calculate the mass, in grams, of the pbso₄ produced when 1.66 ml of 0.2 m pb(no₃)₂ and 3.88 ml of 0.61 m k₂so₄ are mixed. calculate the mass to 3 significant figures.

0.101g PbSO₄

Explanation:

To know an amount of a product we have to know first how many moles of reactants we have.

The reaction is: ⇒

We can observe that per one mole of K₂SO₄ we need one mole of Pb(NO₃)₂, so Pb(NO₃)₂ is the limitant reactant and reaction will stop when it´s over.

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explanation:

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.