Answer to Question #166521 in General Chemistry for alex

Question #166521

350 mL of a 2.0 M NaOH solution is added to a beaker. How many moles of NaOH were added? How many grams of NaOH were added? 


1
Expert's answer
2021-02-26T06:02:45-0500

Moles of NaOH in 350mL of 2.0M solution;


We know that 2 moles are in 1000mL

How many moles would be in 350mL?


"=\\dfrac{2molx350mL}{1000mL} =0.7mol"


Therefore 350mL of 2.0M NaOH contains 0.7moles.


Converting moles to mass we use the formuls;


Mass = moles x MM

= 0.7mol x 39.997g/mol

= 27.998g

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