If you react 30.19 mL of a solution of 2.63 M HNO 3 with 38.0 mL of a solution of Ca(OH) 2 what is the molarity of the base? Record your answer to 3 places after the decimal . 2HNO3 + Ca(OH)2–> 2H2O + Ca(NO3)2

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

the correct answer is:

a. formation of precipitation

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

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