Answer to Question #233040 in General Chemistry for help

Question

A particular brand of beef jerky contains 0.0552 % sodium nitrite (NaNO₂) by mass and is sold in an 8 oz (1 oz = 28.35 g) bag. What mass of sodium does the sodium nitrite contribute to the bag of beef jerky?

Answer 1

Total mass=(8*28.35g)=226.8g

Mass of NaNO₂= (0.0552*226.8/100)=0.1251936g

Moles of NaNO₂=(0.1251936/68.9953)=0.00181452moles

NaNO₂(aq)=Na^-(aq) + NO₂⁺(aq)

Moles ratio=1:1:1

Moles of Na^-(aq)=0.00181452moles

Mass of Na=(0.00181452*22.989769)

=0.04172 g of Na