An acid with molar mass 116.08 g/mol contains by mass, 41.4 %0, 3.47 %H, and 55.1...
A compound with the empirical formula CH, has a molar mass of 70 g/mol. What is the molecular formula for this compound? molecular formula:
A 1.000 L solution contains 0.5844 g NaCl (molar mass 58.44 g/mol) and 7.455 g KCl (molar mass 74.55 g/mol), both strong electrolytes. The concentration of Cl− ions in this solution is (A) 0.1000 mol/L (B) 0.1100 mol/L (C) 0.2000 mol/L (D) 1.000 mol/L (E) 1.100 mol/L
A compound with the empirical formula of NaSO₄ and a molar mass of 238 g/mol has a molecular formula of:
When 780 g of benzene (Molar mass = 78 g/mol) reacts with 750 mL of concentrated HNO3 (16 M) and 750 mL of H2SO4 (18 M), 1000 g of nitrobenzene (molar mass = 123 g/mol) and 250 g of an unknown compound with a high boiling point are obtained. c. Give the name of the most probable side product with the high melting point. Explain why. e. Supposing the crystalline compound (250 g) has the formula C6H4N2O4, calculate the yield...
A compound contains 0.24 g C and 0.050 g H. The molar mass of the compound is 58 g/mole. What are the empirical and molecular formulas of the compound?
Cyclohexylbenzene has the empirical formula C3H4. Its molar mass is 160.3 g/mol. Its molecular formula is:
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
A compound has the empirical formula NaSO₄ and a molar mass of ~238 g/mol. What is its molecular formula? a. Na₂SO₄ 5H₂Ob. Na₂S₂O₈ c. Na₂SO₄ d. Na₂SO₈ e. None of these
4. When 10 g of benzene (Molar mass 78 g/mol) reacts with 9 mL of concentrated HNO3 (16 M) and 9 mL of H2SO4 (18 M), 8.1 g of nitrobenzene (molar mass 123 g/mol) and 1.2 g of an unknown compound with a high boiling point are obtained. a. Identify the limiting reagent. b. Calculate the percent yield of nitrobenzene. c. Give the name and structure of the most probable side product with the high melting point. d. Explain, with...
Acetic acid has a molar mass of 60.05 g/mol and consists of 40,00% C, 6.714% H, and 53.29% O. What is the molecular formula of acetic acid? Multiple Choice O Cззэн 660ззз C3H603 оооо