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PilotLPTM [1.2K]
3 years ago
15

Table salt contains 39.33 g of sodium per 100 g of salt. The U.S. Food and Drug Administration (FDA) recommends that adults cons

ume less than 2.40 g of sodium per day. A particular snack mix contains 1.24 g of salt per 100 g of the mix.What mass of the snack mix can you consume and still be within the FDA limit?
Chemistry
2 answers:
zmey [24]3 years ago
7 0

The answer is: mass of the snack mix can you consume and still be within the FDA limit is 491 grams.

ω(Na) = m(Na) ÷ m(salt).

ω(Na) = 39.33 g ÷ 100 g.

ω(Na) = 0.3933; mass percentage of sodium in salt.

m(salt) = 2.4 g ÷ 0.3933.

m(salt) = 6.10 g; mass of salt recommended for consumation.

Make proportion: 1.24 g : 100 g = 6.10 g ÷ m(mix).

m(mix) = 491.93 g; mass of the snack mix.

IrinaVladis [17]3 years ago
4 0
 <span>First set up the equation 39.33g/100g = x/1.28g and that'll give you how much sodium is in each 100g of the mix. 

39.33g *1.28g= 100g * x 
x = 0.503424g 
x = Amount of sodium per 100g of the mix 

Now 2.4g / 0.503424 = 4.7674 
Multiply by 100 and you get 476.7353g</span>
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