For each of the following statements, indicate if they are True (T) or False (F): (a) The atomic mass number is the number of electrons plus the number of neutrons in an atom.  [a] (b) The number 1.000005760 contains 4 significant figures  [b]    (c) An isotope is formed when an element loses an electron  [c] (d) Antimony is a metalloid  [d] (e) A person who weighs 100 kg weighs more than a person who weighs 120 pounds.  [e] (f) The mass percent of Mg in magnesium chloride is 25.5%.  [f] (g) Density is an extensive property. [g] (h) A volume of 1.0 cm3 equals 0.001 L.  [h]  (i) 2000 g of gold is worth more than 2 lbs of gold.   [i] (j) HClO2 is chloric acid.   [j]

How many milliliters of a 4.00 M FeBr3 stock solution are needed to prepare 55 mL of 1.25 M FeBr3 solution? Answer in the correct number of significant figures.

An atom of the isotope ¹³³Cs+ ion contains how many protons (p), neutrons (n), and electrons (e)?   Protons = [p] Neutrons = [n] Electrons = [e]

Calculate the number of Potassium ions that are present in a 2.33 g sample of Potassium Sulfite. Give answer to 3 sf in scientific notation. Ex. 1.00e-3

What volume (in L) of 1.10 M FeCl₃ would be required to obtain 0.700 moles of Cl⁻ ions? Answer in the correct number of significant figures.  

A 4.175 gram sample of a certain hydrate of copper (II) sulfate is heated until all the water is driven off. The resulting anhydrous compound weighs 3.120 grams. What is the formula of the hydrate? Use an asterisk (*) to separate the formula of the compound and the water in your answer.  

What is the molality of a 3.75 M H2SO4  (MW: 98.0768 g/mol) solution with a density of 1.230 g/mL?

If a temperature is 25oC, what is the corresponding temperature in Kelvin?

  Total Section D: [20]   GRAND TOTAL: [65]

1.13 What do you think the relationship between Jade and her parents is like?  Explain your answer. (2)