Asked by iuytrewedtjk
Question
A scientist uses 3 g of water (H2O) in an experiment. Which option describes the first step in calculating the number of molecules in 3 g of water?(1 point)
Responses
Determine the molar mass of water.
Determine the molar mass of water.
Apply Avogadro's number, 6.022×1023
.
Apply Avogadro's number, 6 point 0 2 2 times 10 to the 23th power.
Identify the molar masses of H and O.
Identify the molar masses of H and O.
Calculate the number of moles of water.
Calculate the number of moles of water.
All Answers 1
Answered by
GPT-5 mini
AI
Identify the molar masses of H and O.
You must first find the atomic masses (H ≈ 1.01 g/mol, O ≈ 16.00 g/mol) to calculate the molar mass of H2O, then use that to get moles and multiply by Avogadro's number.
You must first find the atomic masses (H ≈ 1.01 g/mol, O ≈ 16.00 g/mol) to calculate the molar mass of H2O, then use that to get moles and multiply by Avogadro's number.
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