6.5 g Fe2O3 x 1 mol Fe2O3/ 159.9 g Fe2O3 x 2 mol Fe/1 mol Fe2O3 x 55.8 g Fe/ 1 mol Fe = 4.5 g Fe <<< Answer
Steps:
1) start with reactant provided in the question.
2) calculate the grams per mole of that reactant.
3) determine the ratio of the given reactant to the (desired) reactant in the question.
4) calculate the grams per mole of the desired reactant.
If everything cancels out, you've set your factors up properly
People who make medicine.
Answer:
3.1 L
Explanation:
Step 1: Given data
- Mass of oxygen (m): 3.1 g
Step 2: Calculate the moles of oxygen
The molar mass of oxygen is 32.00 g/mol.
Step 3: Calculate the volume of the container
We will use the ideal gas equation.
P × V = n × R × T
V = n × R × T / P
V = 0.097 mol × (0.0821 atm.L/mol.K) × 390 K / 1.00 atm
V = 3.1 L
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Plz chose as brainliest answer plz :) <#
C=0.10 mol/l
pH=-lg[H⁺]
HCl = H⁺ + Cl⁻
pH=-lgc
pH=-lg0.10=1.0
pH=1.0