A metal ball has a density of 807.g/mL. If it has a volume of 0.0300L, calculate the mass of the object in grams and correct sig figs.

24,000 grams

Explanation:

0.0300 L × 1000 ml/1 L = 30. using the d = m/v formula, we plug in 807. g/mL = m/30. L807. × 30 = 24210.00using sig figs, the answer would be 24,000 grams (decimals: 0, sig figs: 2)

Answer is:     molar solubility of  yttrium fluorid is 4.23·10⁻⁶ m. balanced chemical reaction: yf₃(s)  → y³⁺(aq) + 3f⁻(aq). ksp = 8.62·10⁻²¹. ksp = [y³⁺]  · [f⁻]³.[y³⁺] = [yf₃] = s.[f⁻] = 3[yf₃] = 3s.ksp(yf₃)  = s  · (3s)³.8.62·10⁻²¹ = 27s⁴.s(yf₃)  =  ⁴√(8.62·10⁻²¹  ÷ 27).s(yf₃)  = 0.00000423 m.s(yf₃) = 4.23·10⁻⁶ m.