QUESTION 3For each of the following, give the most specific classification according to type of matter:Example: Cf - an actinide(a) Sodium bromite(b) CoH12O6(aq)(c) 235U and 238U(d) Br, Cr, F(e) Brass(f) Sa(s)(g) Si, Ge, As(h) Mg, Ga, Rb, Bi(i) Pd and Cr(1) SOo2- and COs-(k) Ce", Gd", U4.(1) Ammonia(m) NHa" and H3O*(n) HCN(aq), HCIO4(aq), HsO*(aq)QUESTION 4What is WRONG with the following statements? Do NOT correct the mistake. Say only what iswrong.(a) The density of iron is 7.87 g/mL.(b) The name of SnS is tin sulfide.(c) The ions in ammonia are H* and N-(d) The molecular mass of carbon dioxide is 44.01 g/mol.(e) The chemical formula of magnesium sulfate is MnSO4.

Since you have posted multiple questions, we will solve one for you. If you want any specific…

QUESTION 4 What is WRONG with the following statements? Do NOT correct the mistake. Say only what is wrong. (a) The density of iron is 7.87 g/mL. (b) The name of SnS is tin sulfide. (c) The ions in ammonia are H* and N- (d) The molecular mass of carbon dioxide is 44.01 g/mol. (e) The chemical formula of magnesium sulfate is MnSO4.

QUESTION 4 What is WRONG with the following statements? Do NOT correct the mistake. Say only what is wrong. (a) The density of iron is 7.87 g/mL. (b) The name of SnS is tin sulfide. (c) The ions in ammonia are H* and N- (d) The molecular mass of carbon dioxide is 44.01 g/mol. (e) The chemical formula of magnesium sulfate is MnSO4.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

(a) Atoms are very small compared to objects on the macroscopic scale. The radius of a nickel atom is 125 pm. What is this value in meters and in centimeters? cm -23 (b) The mass of a single nickel atom is 9.75×10 g. Suppose enough Ni atoms were lined up like beads on a string to span a distance of 31.3 cm (12 inches). How many atoms would be required? atoms What mass in grams of Ni would be used? Could you weigh out this amount of nickel using a typical laboratory balance? (c) Taking the density of nickel metal to be 8.91 g/cm, calculate the mass of metal needed to form a piece of Ni wire with the same length as the distance in b, but with a diameter of 1.00 mm. Hint: The volume of a cylinder is n times its radius squared times its height. (V = nr h) How many nickel atoms does this represent? atoms
Which of the following is a molecular compound? (a)NaCl (b) NaOH (c) FePO4 (d) LiF (e) H2O
Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown substances they find in the course of their duties. One such investigator, while reorganizing their shelves, has mixed up several small vials and is unsure about the identity of a certain powder. Elemental analysis of the compound reveals that it is 67.31 % carbon, 6.978% hydrogen, 4.617% nitrogen, and 21.10% oxygen by mass. Which of the compounds could the powder be? C17H19NO3C17H19NO3 = morphine, analgesic C17H21NO4C17H21NO4 = cocaine, illicit drug C7H5N3O6C7H5N3O6 = 2,4,6-trinitrotoluene (TNT), commonly used explosive C10H15NC10H15N = methamphetamine, stimulant C4H5N2OC4H5N2O = caffeine, stimulant C11H15NO2C11H15NO2 = 3,4-methylenedioxymethamphetamine (MDMA), illicit drug C21H23NO5C21H23NO5 = heroin, illicit drug C3H6NO3C3H6NO3 = hexamethylene triperoxide diamine (HMTD), commonly used explosive
Which of the following are ionic, and which are molecular?(a) PF5, (b) NaI, (c) SCl2, (d) Ca1NO322, (e) FeCl3, (f) LaP,(g) CoCO3, (h) N2O4.
A 1.95 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion producing 4.42 mg of CO₂ and 1.81 mg of H₂O. What is the empirical formula of the compound? (Type your answer using the format CxHyOz for the compound CxHyO₂) CH20 HopHelpCh3N7 (b) A compound is composed of elements C, H, and N. A 6.300-mg sample of the unknown compound was combusted, producing 17.090 mg of CO₂ and 4.900 mg of H₂O. What is the empirical formula for this compound? (Type your answer using the format CxHyNz for the compound CxHyNz) HopHelpCh3N8 If the compound has a molar mass of 160 ± 5 g/mol, what is its molecular formula?
9. What is the amount of oxygen in 200.0 mg of an unknown compound, if 100.0 g of the compound contains 49.93 g O? (A) 0.02497 g (C) 24.98 g (B) 0.09986 g (D) 99.86 g 10. What is the thickness of 5.79-mg of gold leaf evenly spread over an area of 44.6 cm² ? (Density of gold is 19.3 g/cm³.) (A) 6.73 x 10-6 cm (C) 6.73 x 10³ cm (B) 1.20 × 10³ cm (D) 2.78 x 102 cm
Consider a 101.3 g sample of the compound manganese(IV) perchlorate. (d)Using the formula Mn(ClO₄)₄ (MM = 452.74), what is the percent by mass of Cl in the compound? (e)how many moles of manganese perchlorate are in 101.3g? (f)How many moles of oxygen are in 101.3 g of manganese perchlorate
7. A compound contains 32.45 % C, 2.72 % H, and 64.83 % O. (a) What is its empirical formula? (Report in the format C₂H,Xz). (b) If its molar mass is 148.1 g/mol, what is its molecular formula?
(a) Atoms are very small compared to objects on the macroscopic scale. The radius of a aluminum atom is 143 pm. What is this value in meters and in centimeters? m cm (b) The mass of a single aluminum atom is 4.48×10-23 g. Suppose enough Al atoms were lined up like beads on a string to span a distance of 37.7 cm (15 inches). How many atoms would be required? atoms What mass in grams of Al would be used? g Could you weigh out this amount of aluminum using a typical laboratory balance? (c) Taking the density of aluminum metal to be 2.70 g/cm³, calculate the mass of metal needed to form a piece of Al wire with the same length as the distance in b, but with a diameter of 1.00 mm. Hint: The volume of a cylinder is n times its radius squared times its height. (V = n r² h) How many aluminum atoms does this represent? g atoms
A 3.000 g sample of a gaseous compound was found to contain 2.560 g of carbon and 0.440 g of hydrogen. A) What is the simplest formula of the compound (Write C first and then H)? You won't be able to make the numbers a subscript. For instance, for MgCl2 enter MgCl2. B) The molar mass of the compound was found to be 42.08 g/mol. What is the molecular formula of the compound? You won't be able to make the numbers a subscript. For instance, for MgCl2 enter MgCl2.
Boron, atomic number 5, occurs naturally as two isotopes, 10B and 11B, with natural abundances of 19.9% and 80.1%, respectively. (a) Will the mass percentage of F be the same in 10BF3 and 11BF3? If not, why is that the case?
Iron is biologically important in the transport of oxygen by red blood cells from the lungs to the various organs of the body. In the blood of an adult human, there are approximately 2.63 x 1013 red blood cells with a total of 2.90 g of iron. On average, how many iron atoms are present in each red blood cell? (molar mass Fe = 55.85 g/mol)