Molar mass of CH4 = 12 + 4*1 = 16 g/mol. Number of moles = mass/molar mass = 88 g / 16 g/mol = 5.5 moles.
Questions & Step-by-step Solutions
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Q
Q: How many moles are in 88 grams of CH4?
Solution: Molar mass of CH4 = 12 + 4*1 = 16 g/mol. Number of moles = mass/molar mass = 88 g / 16 g/mol = 5.5 moles.
Steps: 6
Step 1: Identify the chemical formula of the substance. In this case, it is CH4 (methane).
Step 2: Calculate the molar mass of CH4. Carbon (C) has a mass of 12 grams/mol and Hydrogen (H) has a mass of 1 gram/mol. CH4 has 1 carbon and 4 hydrogens.
Step 3: Calculate the total mass of CH4: 12 g/mol (for C) + 4 * 1 g/mol (for H) = 12 g/mol + 4 g/mol = 16 g/mol.
Step 4: Use the formula to find the number of moles: Number of moles = mass / molar mass.
Step 5: Substitute the values: Number of moles = 88 grams / 16 g/mol.
