The specific gravity of the following compounds are: Ether – 0.715; Bromine - 3.016; Glycerin - 1.25; and Chloroform - 1.476. If 22 ml of the unknown solution weighs 32.47 g, what is the identity of the solution? Ether None of the choices Bromine Chloroform Glycerin
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- What is the mass in grams of 24.2 moles of NaCl?What is the empirical formula for a compound that is 26.56% potassium, 35.41% chromium, and 38.03% oxygen?How many mL of methadone is needed for a patient who was prescribed 0.015 g of methadone? The vial reads 6 milligrams of methadone per 1 mL of solution.
- How many moles of sodium hypochlorite can be prepared from 32.5 g of NaOH?Ethanol is dissolved in water to make 0.750L of solution. Given that the solution is 2.6M, what isthe mass of the ethanol used?Balance the following equation, and tell how many moles of nickel will reactwith 9.81 mol of hydrochloric acid.
- What is the empirical formula of a compound that contains 72.0% carbon, 12.0% hydrogen and 16.0% oxygen by mass?Consider the following acids and their ionization constant, determine which conjugate base is HCOOH Ka = 1.7 x 10-4 (b) HCN Ka = 4.9 x 10-1040.00 mL of 0.1100 M HCl is diluted to 100 mL with H2O and titrated with 0.1M NaOH. Calculate the pH after addition of the following volumes(mL) of titrant. d) 40.00 e) 43.95 f) 44.00 g) 44.05 h) 50.00. Plot the titration curve. Select an indicator from the table found in your book.
- What is the mass in grams of 30.50 moles of KBr?The molar stability of mercury (II) sulfide is below. What is the Ksp ?The standard heat of combustion of liquid methyl cyclopentane, C6H12(l),C6H12(l), was measured to be −3937.7 kJ/mol.−3937.7 kJ/mol. What is Δ?̂ ∘f C6H12(l),ΔH^f C6H12(l)∘, the standard heat of formation of liquid methyl cyclopentane?