Question

IF YOU HELP I WILL GIVE YOU BRAINLIEST

Answer 1

Answer:

3.5 g

Step-by-step explanation:

To answer this, multiply 100 g by 0.035:  3.5 g

Answer 2

9514 1404 393

Answer:

• 3.5 g
• 2.857 kg

Step-by-step explanation:

1. The mass of the salt in 100 g of seawater is given as 3.5% of the total mass, so is ...

  3.5% × 100 g = 3.5 g . . . . salt in 100 g of seawater

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2. Let m represent the mass of seawater that contains 100 g of salt.

  3.5% × m = 100 g

  m = (100 g)/0.035 ≈ 2857 g

About 2.857 kg of seawater must evaporate to leave 100 g of salt.*

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* Clearly, only the water evaporates, the mass of the evaporated water is 2.757 kg. The number above is the mass of seawater that is required in order to obtain 100 g of salt. The wording of the problem leaves some ambiguity, it seems.