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damaskus [11]
3 years ago
15

A can of chicken broth contains 340 mg of sodium chloride in 286.7 g of broth. What is the percent by mass of sodium chloride in

the broth?
Chemistry
2 answers:
rosijanka [135]3 years ago
4 0

Answer:

The percent by mass of sodium chloride in the broth is 0.118 %

Explanation:

Step 1: Data given

Mass of sodium chloride = 340 mg = 0.340 grams

Mass of broth = 286.7 grams

Step 2: Calculate the total mass

Total mass = mass of sodium chloride + mass of broth

Total mass = 0.340 grams + 286.7 grams

Total mass =287.04 grams

Step 3: Calculate percent by mass of sodium chloride

% mass NaCl = (mass NaCl / total mass) *100%

% mass NaCl = (0.340 grams / 287.04 grams) *100 %

% mass NaCl = 0.118 %

The percent by mass of sodium chloride in the broth is 0.118 %

marshall27 [118]3 years ago
3 0

Answer:

0.12 & of NaCl

Explanation:

Determine the percentage of NaCl in the broth

First of all, we convert the mass from mg to g

340 mg . 1g/ 1000 mg = 0.340 g

Now  we can calculate the %

(0.340 g / 286.7 g) . 100 = 0.12 %

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A chemist measures the enthalpy change ΔH during the following reaction: Fe(s) + 2HCl(g)-->FeCl2(s) + H2 ΔH=-157.0 kJ. Use this information to complete the table below. Round each of your answers to the nearest kJ/mol

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