Some airbags in cars contain sodium azide (NaN3). Sodium azide is made by reacting dinitrogen monoxide gas with sodium amide (NaNH2) as shown by the equation. 2NaNH2 + N2O -> NaNa + NaOH + NH3 Calculate the mass of sodium amide needed to obtain 550 g of sodium azide, assuming there is a 95.0% yield of sodium azide. Give your answer to 3 significant figures.​

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.