Formula of precipitate NaOH(aq) + KNO3(aq)

(s)

Na2SO4(aq) + Pb(NO3)2(aq)

(5)

s

NaOH(aq) + Fe2(SO4)3(aq)

(s)

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"

he would use the colour black

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

16

explanation:

the marks go by 4s