미해결 질문Which is the formula mass of Na2SO4? 119.06 amu, 125.98 amu, 142.05 amu, or 174.12 amu?1243views
객관식How many grams of K2SO4 are present in 0.123 mole of K2SO4? (Molar mass of K2SO4 = 174 g/mol)129views