• Nov 18, 2025 chemistry solution concentration practice problems answer key 5 M solution? Solution: Molar mass of NaOH ≈ 40 g/mol Given: V = 1 L C = 0.25 mol/L Calculate moles of NaOH: \[ \text{Moles} = 0.25 \, \text{mol} \] Calculate grams: \[ \text{Mass} = \text{moles} \times \text{molar mass} = 0.25 \times 40 = 10\, \te By Laura Runte
• Dec 9, 2025 chemistry practice problems thermochemistry multiple choice oo low, B) 502 J is too low, C) 1250 J is too low, and A) 334 J is too low. Given the calculations, the closest approximate value is about 21,000 J, indicating a potential typo in options or a need for uni By Ellis D'Amore
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