Chem 1010 Final Exam

A patient is given 5.00 mL of an aqueous solution that contains 0.0012 g of active ingredient per mL of solution. How much active ingredient was administered? A) 4167 g B) 0.0060 g C) 0.00024 g D) 6.00 g E) 0.0012 g

B) 0.0060 g

Express 4,500 x 103 in normalized scientific notation with 3 significant figures. A) 4.50 x 10^6 B) 4.50 x 10^3 C) 4.50 x 10^9 D) 4.50 E) 0.45 x 10^4

A) 4.50 x 10^6

Convert a potassium chloride solution concentration of 312 mg/dL to millimolar (mM) A) 41.9 mM B) 3120 mM C) 2.33 x 10^5 mM D) 32.3 mM E) none of these

A) 41.9 mM

How many valence electrons are in a nitrogen atom? A) 5 B) 7 C) 14 D) none of these

A) 5

How many moles of water do I have if I have 1.0 kg of water? A) 56 mol H20 B) 0.056 mol H20 C) 18 mol H20 D) 0.018 mol H20

A) 56 mol H20

How many valence electrons are in an atom of oxygen? A) 6 B) 8 C) 2 D) 7

A) 6

How many neutrons are in an atom of carbon-14? A) 8 B) 6 C) 14 D) none of these

A) 8

The density of an object is 2.0 g/mL and has a mass of 8.0 kg. What is it's volume? A) 4.0 mL B) 0.25 mL C) 2.0 x 10^3 mL D) 4.0 x 10^3 mL

D) 4.0 x 10^3 mL

The label on a drug vial reads "25.0 micrograms/mL." How many milliliters would be needed to administer 228 micrograms of medicine to a patient? A) 4.56 mL B) 5600 mL C) 0.11 mL D) 9.12 mL

D) 9.12 mL

Express a fever of 102oF in degrees Celsius A) 38.9 C B) 57.2 C C) 151 C D) none of these

A) 38.9 C

Express a volume of 65 mL in terms of Tablespoons. A) 4.3 T B) 13 T C) 975 T D) 325 T

A) 4.3 T

Alkali metals are most likely to form ions with the charge: A) +1 B) -2 C) -1 D) -3 E) +2

A) +1

What is the charge on aluminum in the ionic compound AlCl3? A) +3 B) +1 C) 0 D) -1 E) -3

A) +3

A 1%(w/v) epinephrine solution is delivered by inhalation to treat asthma. This concentration is equivalent to: A) 1 g epinephrine dissolved in 100 mL of soln. B) 0.001 g epinephrine dissolved in 1 L of soln. C) 1 mg epinephrine dissolved in 100 mL of soln. D) 0.001 mg epinephrine dissolved in 1 L of soln. E) 1 ug epinephrine dissolved in 100 mL of soln.

A) 1 g epinephrine dissolved in 100 mL of soln.

Which of the following equalities is correct? A) 1 mL = 1 cm^3 B) 1 L = 1 cm^3 C) 1 mL = 1 cm^2 D) 1 g = 103 kg E) 1 mL = 1 cm

A) 1 mL = 1 cm^3

A diluted ammonia solution has a pH of 9. What is the [H+] in this solution? A) 1.0 x 10^-9 M B) 9.0 x 10^-5 M C) 9.0 x 10^-9 M D) 1.0 x 10^5 M E) 1.6 x 10^9 M

A) 1.0 x 10^-9 M

With correct significant figures, what is the volume of a piece of metal with a density of 1.65 g/mL with a mass of 2.0 kg? A) 1.2 x 10^3 mL B) 1212.12 mL C) 3.3 x 10^3 mL D) none of these

A) 1.2 x 10^3 mL

How many micrograms are in 3.5 mL of a medicine with a concentration of 45 ng/mL? A) 1.6 x 10^-1 micrograms B) 1.6 x 10^-13 micrograms C) 1.6 x 10^2 micrograms D) none of them

A) 1.6 x 10^-1 micrograms

A normal blood oxygen (O2) level is 8.0 mmol/L. What is the normal mass of oxygen per milliliter of blood? A) 2.56 x 10^-4 B) 0.256 g C) none of these are correct D) 256 g E) 2.56 x 10^-2

A) 2.56 x 10^-4

Express 55 mL in terms of cubic inches (in3). A) 3.4 in^3 B) 22 in^3 C) 55 in^3 D) 8.5in^3

A) 3.4 in^3

If a gas has a temperature of 120°F, what is its temperature in Kelvin? A) 322 K B) -152 K C) -242 K D) 394 K E) 49.4 K

A) 322 K

The following equation is not balanced: Al(s) + CuO(s) → Al2O3(s) + Cu(s) What must be done to the equation to make it balanced? A) Change the coefficients to: 2 for Al, 3 for CuO and 3 for Cu. B) Change the subscripts of CuO to CuO3. C) Change the coefficients to: 3 for Al, 2 for CuO and 2 for Cu D) Change the state of matter in the reactants. E) Change the subscripts of Al2O3 to be AlO.

A) Change the coefficients to: 2 for Al, 3 for CuO and 3 for CU

Which of the following elements is a halogen? A) Fluorine B) Silver C) Lithium D) Potassium

A) Fluorine

Which of the following elements is the most electronegative? A) fluorine B) hydrogen C) sodium D) carbon E) oxygen

A) Fluorine

Interpret the following ABG results: pH = 7.25 pCO2 = 50 mmHg bicarbonate concentration = 24 mEq/L A) respiratory acidosis B) respiratory alkalosis C) metabolic acidosis D) metabolic alkalosis

A) Respiratory Acidosis

Bubbling carbon dioxide through pure water will cause the pH of the water to A) decrease (become more acidic) B) increase (become more basic) C) increase (become more acidic) D) decrease (become more basic)

A) decrease (become more acidic)

Bubbling carbon dioxide through pure water will cause the pH of the water to A) decrease (become more acidic) B) increase (become more basic) C) increase (become more acidic) D) decrease (become more basic)

A) decrease (become more acidic)

Most of the mass of the atom is located A) in the atom B) in the electron cloud

A) in the atom

According to our current atomic model, most of the mass of an atom is located A) in the nucleus B) in the electron cloud C) in the valence shell

A) in the nucleus

A blood sample has a pH of 7.40. What is the [H+] in this solution? A) none of these B) 2.6 x 10^-5 M C) -2.6 x 10^7 M D) 4.0 x 10^8 M E) 4.0 x 10^-8 M

A) none of these

Which of the following is a heterogeneous mixture? A) oil and vinegar salad dressing B) vinegar C) lemonade D) bronze E) air

A) oil and vinegar salad dressing

A patient's fluid intake is monitored over a six-hour period. If the patient drinks 232.0 cm3, 300.1 cm3, and 41.12 cm3 of water, what is the total volume of the fluid intake? A) 573.0 mL B) 573.2 mL C) 570 mL D) 573 dL E) 573.0 dL

B) 573.2 mL

The recommended dosage of a drug is 2.00 mg/kilogram of body weight per day (q.d.). How many total milligrams would be needed for a 175 lb man for 5 days? A) 160 mg B) 795 mg C) 1750 mg D) 3850 mg E) none of these

B) 795 mg

The UNBALANCED chemical equation for the combustion of propane (C3H8) is given below. C3H8 + 5 O2 → 3 CO2 + 4 H2O How many moles of carbon dioxide (CO2) are released when 3.0 moles of propane are burned in the presence of excess oxygen? A) 1.7 mol CO2 B) 9.0 mol CO2 C) 15 mol CO2 D) 105 mol CO2 E) 6.0 mol CO2

B) 9.0 mol CO2

What is the chemical name for FeO? A) Iron (I) oxide B) Iron (II) oxide C) Iron (III) oxide D) Ferric oxide

B) Iron (II) oxide

Which of the following is incorrectly paired? A) HCl, a strong acid B) NH3, a strong acid C) potassium, an alkali metal D) CH3COOH, a weak acid E) SO4^-2, sulfate

B) NH3, a strong acid

The conversion of Fe2+ to Fe (iron metal) is an example of a __________ reaction. A) Oxidation B) Reduction C) Hydrolysis D) Polymerization

B) Reduction

Nonmetals typically ______ and metals typically ______. A) donate electrons; accept electrons B) accept electrons; donate electrons C) donate protons; accept protons D) accept protons; donate protons E) donate neutrons; accept neutrons

B) accept electrons; donate electrons

The number of protons is equal to the _____ in a neutral atom. A) number of neutrons B) number of electrons C) mass number D) average atomic mass E) group number

B) number of electrons

What ionic compound has the formula Na2O? A) disodium oxide B) sodium oxide C) sodium dioxide D) sodium oxygen E) disodium oxygen

B) sodium oxide

A value of 25 mL is a measure of A) density B) volume C) temperature D) mass E) distance

B) volume

Acetone, the solvent in nail polish, has a density of 0.791 g/mL. What is the mass of 30.0 mL acetone? A) 0.042 g B) 0.026 g C) 37.9 g D) 23.7 g

D) 23.7 g

Tetracycline is a short-acting antibiotic. It discolors developing teeth and so is not normally prescribed for children under eight or pregnant women. An 11-year-old, 84-lb child is prescribed 35 mg/kg tetracycline per day for ten days. What is the daily dose of tetracycline that should be administered to the child? A) 5.3 mg B) 53 mg C) 1.3 g D) 1.3 mg E) 2.9 g

C) 1.3 g

Express 25 mL in terms of cubic inches (in3). A) 3.4 in^3 B) 22 in^3 C) 1.5 in^3 D) 9.8 in^3

C) 1.5 in^3

Using correct rules for reporting final answers, what is the sum of 13.01 g + 1011 g + 0.513 g? A) 1024.523 g B) 1024.52 g C) 1025 g D) 1020 g E) 1030 g

C) 1025 g

An object with a mass of 2.54 g is placed into a graduated cylinder containing water with a volume of 12.54 mL. The water level inside the graduated cylinder rises to 133.65 mL. What is the volume of the object? A) 1211.1 mL B) 121 mL C) 121.11 mL D) 121.1 mL E) none of these

C) 121.11 mL

The balanced chemical equation for the combustion of propane (C3H8) is given below. C3H8 + 5 O2 → 3 CO2 + 4 H2O How many moles of carbon dioxide (CO2) are released when 5.0 moles of propane are burned in the presence of excess oxygen? A) 1.7 mol B) 3.0 mol CO2 C) 15 mol CO2 D) 105 mol CO2 E) none of these

C) 15 mol CO2

If Jane Doe has a blood glucose (C6H12O6) concentration of 102 mg/dL, how many glucose molecules does she have in each deciliter of blood? A) 3.41 x 10^26 B) 3.41 x 10^23 C) 3.41 x 10^20 D) 6.41 x 10^22 E) 5.67 x 10^-4

C) 3.41 x 10^20

Convert 10.0 cm to inches A) 25.4 in B) 4.55 in C) 3.94 in D) 10.0 in

C) 3.94 in

Cephadrine is one of many antibiotics that act by inhibiting bacterial cell wall synthesis. A child's daily dosage is 25 mg/kg. How much cephadrine should a 58-lb child be given each day? A) 3200 mg B) 1500 mg C) 660 mg D) 5.1 mg E) 1.1 mg

C) 660 mg

How many neutrons are in an atom of iodine-131? A) 53 B) 131 C) 78 D) 7

C) 78

How many neutrons are in an atom of iodine-131? A) 53 B) 131 C) 78 D) 7

C) 78

Which of the following bonds is nonpolar covalent? A) C-O B) Na-F C) C-C D) C-F E) H-F

C) C-C

What is the name of CaCO3, a common calcium supplement and antacid? A) calcium carbon trioxide B) calcium bicarbonate C) calcium carbonate D) calcium cyanide E) calcium carbon oxide

C) Calcium Carbonate

Which of the following is not a valid ionic formula? A) Na3PO4 B) MgCO3 C) K3SO4 D) CaF2 E) Ca(NO3)2

C) K3SO4

Which of the following is not a valid ionic formula? A) NaF B) MgO C) KCl2 D) CaF2 E) Na2O

C) KCl2

Which arrow(s) point(s) to hydrogen bonding? A) Leftmost B) Rightmost C) Middle D) All

C) Middle

Which of the following is NOT correctly matched A) HCl, a strong acid B) HNO3, a strong acid C) NH3, a strong base D) NaOH, a strong base

C) NH3, a strong base

What is the formula for baking soda (sodium bicarbonate)? A) Na2CO3 B) NaHCO2 C) NaHCO3 D) NaCO2

C) NaHCO3

Interpret the following ABG results: pH = 7.51 pCO2 = 38 mmHg bicarbonate concentration = 29 mEq/L A) respiratory acidosis. B) respiratory alkalosis. C) metabolic alkalosis D) metabolic acidosis

C) metabolic alkalosis

Which of the following is the best name for the compound SF6, a potent greenhouse gas? A) sulfur fluorine B) sulfur fluoride C) sulfur hexafluoride

C) sulfur hexafluoride

Oral Rehydration Therapy (ORT) is a successful treatment for severe dehydration. The drink contains water and sodium chloride, as well as other salts and sugar. If an ORT contains 0.26% NaCl, what is the molarity of the NaCl in solution? A) 150 M B) 15 M C) 26 M D) 0.044 M E) 0.0044 M

D) 0.044 M

James has a blood glucose level of 82 mg/dL. How many grams of glucose does James have in 1 L of his blood? A) 0.00082 g/L B) 0.0082 g/L C) 0.082 g/L D) 0.82 g/L E) 8.2 g/L

D) 0.82 g/L

Jan has a blood glucose level of 92 mg/dL. How many grams of glucose does Jan have in 1 L of her blood? A) 0.00092 g/L B) 0.0092 g/L C) 0.092 g/L D) 0.92 g/L E) 9.2 g/L

D) 0.92 g/L

How many micrograms of chalk does Sarah have if she has 1 milligram of chalk? A) 10^-3 micrograms B) 0.000001 micrograms C) 1,000,000 micrograms D) 1000 micrograms

D) 1000 micrograms

What is the atomic symbol for an atom with 53 protons, 82 neutrons, and 54 electrons? A) 137 I- B) 82 I- C) 53 I- D) 135 I- E) 137 I+

D) 135 I-

What is the mass of one mole of dopamine, a neurotransmitter with the molecular formula C8H11NO2? A) 22.0 B) 43.0 C) 82.0 D) 153 E) 164

D) 153

If a gas is 251°F, what is its temperature in Kelvin? A) 484 K B) 122 K C) -22 K D) 395 K E) 524 K

D) 395 K

Which statement best describes the following reaction? Fe + Cu2+ → Fe2+ + Cu A) In this reaction, both iron and copper are reduced. B) In this reaction, both iron and copper are oxidized. C) In this reaction, iron is reduced to Fe2+ and copper is oxidized to solid Cu. D) In this reaction, iron is oxidized to Fe2+ and copper is reduced to solid Cu. E) This is not an oxidation-reduction reaction.

D) In this reaction, iron is oxidized to Fe2+ and copper is reduced to solid Cu.

Magnesium chloride is sometimes administered orally to suppress premature labor. Which of the following is a valid ionic formula for magnesium chloride? A) MnCl B) MnCl2 C) MgCl D) MgCl2

D) MgCl2

Interpret the following ABG results: pH = 7.51 pCO2 = 38 mmHg bicarbonate concentration = 29 mEq/L A) respiratory acidosis B) respiratory alkalosis C) metabolic acidosis D) metabolic alkalosis

D) metabolic alkalosis

Which of the following measurements is equal to 4.214 x 10^-2 m? A) 421.4 m B) 42.14 m C) 4.214 m D) 0.4214 m E) 0.04214 m

E) 0.04214 m

A patient's blood test shows that his chloride level is 101 mmol/L. Convert this concentration to units of molarity. A) 1010 M B) 101 M C) 10.1 M D) 1.01 M E) 0.101 M

E) 0.101 M

How many moles of the antibiotic tetracycline (C22H24N2O8) are in a 50-mg dose? A) 8880 moles B) 22.2 moles C) 8.88 moles D) 0.113 moles E) 1.13 x 10^-4

E) 1.13 x 10^-4

The balanced chemical equation for the combustion of butane is given below. How many grams of O2 are needed to completely react with 5.0 g of butane in a butane lighter? 2 C4H10 + 13 O2 → 8 CO2 + 10 H2O A) 0.42 g B) 2.8 g C) 6.0 g D) 9.1 g E) 18 g

E) 18 g

The H20 in the following reaction is ___________. H2SO4 + H20 = HSO4- + H30+ A) hydroxide B) hydronium C) a proton D) the acid E) the base

E) the base

The NH3 in the following reaction is _________. NH3 + H20 = NH4 + -OH A) hydroxide B) hydronium C) a proton D) the acid E) the base

E) the base

Which of the following groups of elements easily forms anions? A) the noble gases B) the transition metals C) the alkaline earth metals D) the alkali metals E) the halogens

E) the halogens