Question

if caterina uses a teaspoon of salt on each of her three meals a day, roughly how much sodium has she consumed?
o a. 3000 mg
o b. 5000 mg
o c 7000 mg
o d. 9000 mg

Explanation:

Step1: Recall sodium in a teaspoon of salt

A teaspoon of salt (sodium chloride) has about 2000 mg of sodium (since 1 teaspoon of salt ≈ 5000 mg of salt, and sodium is about 40% of salt: \( 5000\times0.4 = 2000 \) mg sodium per teaspoon).

Step2: Calculate total sodium for 3 meals

Caterina uses 1 teaspoon per meal, 3 meals a day. So total sodium = \( 2000\times3 = 6000 \) mg? Wait, but maybe the approximation is 1 teaspoon of salt has ~3000 mg sodium? Wait, no, standard is 1 tsp salt ≈ 2300 mg sodium. But the options: 3 meals, so 3×2300≈6900, closest to 7000? Wait, maybe the problem assumes 1 tsp salt has ~2333 mg sodium (since 1 tsp salt is 5g = 5000mg, sodium is 40%, so 2000, but maybe the question uses 3000 per tsp? Wait, no, let's check options. If 1 tsp has 3000 mg sodium (maybe rounded), then 3×3000=9000? No. Wait, maybe the question's salt per tsp is 3000 mg sodium? Wait, no, standard is 1 tsp salt (NaCl) is 5g = 5000mg, sodium is 40% of NaCl, so 2000mg. So 3 meals: 3×2000=6000, closest to 7000? Wait, maybe the question uses 1 tsp salt has ~2333 mg sodium, 3×2333≈7000. So the answer is c. 7000 mg. Wait, let's recheck:

Wait, maybe the problem states that 1 teaspoon of salt has approximately 2300 mg of sodium. So 3 meals: 3×2300 = 6900, which is roughly 7000 mg. So the answer is c.

Answer:

c. 7000 mg