How many moles of sodium carbonate are contained by 57.3g of sodium carbonate

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

What does the cell nucleus do or, how does it function?

Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)