The  grams   of NaCl  that are required  to  make  150.0 ml of  a  5.000 M  solution is  43.875 g
calculation
Step 1:calculate  the  number of moles
moles =  molarity  x volume  in L
volume  = 150 ml / 1000 = 0.15 L
= 0.15 L  x 5.000  M  = 0.75  moles
 Step 2:  calculate mass
mass =  moles x  molar mass
molar mass  of NaCl = 23 + 35.5 = 58.5 mol /L
mass is therefore =0.75  moles  x 58.5  mol /l =43.875 g
 
        
                    
             
        
        
        
With a pH of five, it would mean that this substance is a weak acid one would also it expect it would be sour.
        
                    
             
        
        
        
99% sure its false
its arranged by atomic number now i believe
 
        
             
        
        
        
V1 = 2.0 L
T1 = 25.0 oC = 298 K V2 = V1T2 = (2.0 L)(244 K) = 1.6 L
V2 = ? t1(298 K)
T2 = –28.9 oC = 244 K
 
        
             
        
        
        
Tops stops spinning because it doesn't have energy or ran out of force for example when you spin a top you give force to it then after 30 sec it going to stop going slower and slower that Is losing energy that's how tops stops spinning