Chemistry concepts and calculations

What are the normal freezing points and boiling points of the following solution

What are the normal freezing points and boiling points of the following solutions? (a) 11.8 g NaCl in 183 mL of water (b) 13.9 g of urea in 68.8 mL of water

What are the number of moles and the molar mass of a gas if 10.22 g of it occupi

What are the number of moles and the molar mass of a gas if 10.22 g of it occupies 5.06 L at 19oC under 0.750 atm? The number of moles is________mol. The molar mass of the gas is …

What are the partial pressures of N H 3 and H 2 S at equilibrium, that is, what

What are the partial pressures of NH3 and H2S at equilibrium, that is, what are the values of PNH3 and PH2S, respectively? Enter the partial pressure of ammonia followed by the pa…

What are the possible value of n and m_1 for an electron in a 4f orbital? a) n =

What are the possible value of n and m_1 for an electron in a 4f orbital? a) n = 4 and m_1 =-3, -2, -1, 0. + 1. +2 or +3 a) n = 4 and m_1 = 2 c) n = 1, 2, 3 or 4 and m_1 = -3, -2,…

What are the possible values for the magnetic quantum numbers (m) when the princ

What are the possible values for the magnetic quantum numbers (m) when the principle quantum number (n) is 3 and the angular momentum quantum number () is 1? a. 0 b. -1,0, 1 d. 0,…

What are the possible values for the magnetic quantum numbers (m) when the princ

What are the possible values for the magnetic quantum numbers (m) when the principle quantum number (n) is 3 and the angular momentum quantum number () is 1? a. 0 b. -1,0, 1 d. 0,…

What are the possible values of m ? for an electron in a d orbital? To learn the

What are the possible values of m? for an electron in a d orbital? To learn the restrictions on each quantum number. Quantum numbers can be thought of as labels for an electron. E…

What are the possible values of me for an olectron in a d orbital? Express your

What are the possible values of me for an olectron in a d orbital? Express your answer numerically with sequential values separated by commas View Available Hint(s) 2-1,0,1.2 Lear…

What are the possible values of n and m l for an electron in a 4 p orbital? What

What are the possible values of n and m lfor an electron in a 4 p orbital? What are the possible values of n and m lfor an electron in a 4 p orbital? n = 4 and m l= 1 n = 4 and m …

What are the possible values of the magnetic quantum number mt? represented by t

What are the possible values of the magnetic quantum number mt? represented by the formula: m =2k +1, where k is a positive integer all the non-negative integers: 0,1,2,3, etc all…

What are the powers or responsibilities assigned to each of the 3 organizations

What are the powers or responsibilities assigned to each of the 3 organizations created by the OSHAct? Who is the U.S. Secretary of labor? Who is the federal director of OSHA? Hea…

What are the products for the following reactions? Write the molecular equation,

What are the products for the following reactions? Write the molecular equation, total ionic equation, and the net equation. A) CoCl2+AgNO3—-> B) AgNO3+Na2CO3—> C) Na2CO3+Cu…

What are the products in the complete ionic equation for the following reaction:

What are the products in the complete ionic equation for the following reaction: HBr + KOH--- products A) H2O and KBr B) K+, Br- and H2O C) H2O, K+, Br2 D) KH, H2O, and BrOH E) KH…

What are the properties of the Group I, II, and III cations that permit their se

What are the properties of the Group I, II, and III cations that permit their separation by groups? 2. (1) What is the electron configuration of Hg^+ ion? (2) Why does it actually…

What are the pros/cons to using the auto keyword, especially in for loops? for(s

What are the pros/cons to using the auto keyword, especially in for loops? for(std::vector<T>::iterator it = x.begin(); it != x.end(); i++) {    it->something(); } for(st…

What are the respective central-metal oxidation state, coordination number, and

What are the respective central-metal oxidation state, coordination number, and overall charge on the complex ion in the following species? [Cr(en)2(NH3)2]Cl2 A) oxidation state =…

What are the respective central-metal oxidation state, coordination number, and

What are the respective central-metal oxidation state, coordination number, and overall charge on the complex ion in the following species? [Cr(en)2(NH3)2]Cl2 A) oxidation state =…

What are the respective concentrations (m) of mg^2+ and c_2H_3 O_2 by dissolving

What are the respective concentrations (m) of mg^2+ and c_2H_3 O_2 by dissolving 0.600 mol mg 2 in water and diluting to 135 mL? 0.444 and 0.889 0.0(44 and 0.0689 0..889 and 0.444…

What are the resulting coefficients when you balance the chemical equation for t

What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, C_2H_6? In this reaction, ethane is burned in the presence of oxygen (O_2)…

What are the risks to your health of taking excessive amounts of Vitamin C on a

What are the risks to your health of taking excessive amounts of Vitamin C on a daily basis? Choose all that apply. A. Excess vitamin C can cause scurvy B. Excess Vitamin C can bi…

What are the smallest whole number coefficients the reactants and product when t

What are the smallest whole number coefficients the reactants and product when the following molecular equation is correctly balanced?_nh_3(g) +_O_2(g) rightarrow_no(g) +_h_2O(g) …

What are the steps to recrystallize an impure solid? Answer 1. Heating the water

What are the steps to recrystallize an impure solid? Answer 1. Heating the water. 2. Dissolving the solute.3. Letting the solute cool.4. Collecting and washing the crystals. 5. Re…

What are the steps to recrystallize an impure solid? Answer 1. Heating the water

What are the steps to recrystallize an impure solid? Answer 1. Heating the water. 2. Dissolving the solute.3. Letting the solute cool.4. Collecting and washing the crystals. 5. Re…

What are the steps to recrystallize an impure solid? Answer A 1. Heating the wat

What are the steps to recrystallize an impure solid? Answer A 1. Heating the water. 2. Dissolving the solute.3. Letting the solute cool.4. Collecting and washing the crystals. 5. …

What are the steps to recrystallize an impure solid? Answer A 1. Heating the wat

What are the steps to recrystallize an impure solid? Answer A 1. Heating the water. 2. Dissolving the solute.3. Letting the solute cool.4. Collecting and washing the crystals. 5. …

What are the symbols and charges of the group 4 cations? Is this correct? Group

What are the symbols and charges of the group 4 cations? Is this correct?    Group IV: Ba2+, Ca2+, K+, Mg2+, Na+, NH4+   Ba2+, Ca2+, and Mg2+ are precipitated in 0.2 M (NH4)2CO3 s…

What are the symptoms/inital effects of thallium poisoning? How is thallium pois

What are the symptoms/inital effects of thallium poisoning? How is thallium poisoning detected? George Trepal Murder Case George Trepal and his wife moved to Alturas, Florida in t…

What are the three main mechanisms of Diffusion in mass transfer processes? Why

What are the three main mechanisms of Diffusion in mass transfer processes? Why is the effective diffusivity in porous solids less than it would be in free liquid? Give a simple l…

What are the top security concerns when setting up a PXE (Preboot Execution Envi

What are the top security concerns when setting up a PXE (Preboot Execution Environment) booting environment, ordered by severity of a possible exploitation? Things that I thought…

What are the two antacids we will be investigating in this experiment? What is t

What are the two antacids we will be investigating in this experiment? What is the major ingredient of each? (You may want to consult the label.) Find a commercial antacid other t…

What are the two main targets of antidiuretic hormone (ADH)? Select one: a. The

What are the two main targets of antidiuretic hormone (ADH)? Select one: a. The hypothalamus and posterior pituitary b. The kidneys and blood vessels c. The heart and the kidneys …

What are the two types of gamma-ray bursts and how are they formed? Draw a diagr

What are the two types of gamma-ray bursts and how are they formed? Draw a diagram of the Milky Way Galaxy and label the disk, bulge, and halo. What kinds of stars are found in ea…

What are the units and numerical values of standard temperature? Solution 1) Thi

What are the units and numerical values of standard temperature?

What are the units and numerical values of standard temperature? Solution 1) Thi

What are the units and numerical values of standard temperature?

What are the units for each of the following if concentrations areexpressed in m

What are the units for each of the following if concentrations areexpressed in moles per liter and the time in seconds? (Answer usingmol, L, and s as necessary.) (a) rate of a che…

What are the units of molarity? 2. Define the following terms: a) end point b) e

What are the units of molarity? 2. Define the following terms: a) end point b) equivalence point 3. How many moles of NaOH will react completely with 1.222 mol HCl? (use the chemi…

What are the values for the IP layer in this network? Here are my answers so far

What are the values for the IP layer in this network? Here are my answers so far. I solved for the rest of the table I just do not know what to put in the field for IP layer. Plea…

What are the: oxidation numbers, balanced equation, and balanced net ionic equat

What are the: oxidation numbers, balanced equation, and balanced net ionic equation for the following 6 reactions: Please include steps so I can thoroughly understand. KMnO4 + H2S…

What are two types of proteins expected to be synthesized on the ribosomes on th

What are two types of proteins expected to be synthesized on the ribosomes on the rough endoplasmic ? Here are biomolecules which are hybrid molecules. There are molecules are com…

What are valence electrons? How many valence electrons does an atom/ion have? Wh

What are valence electrons? How many valence electrons does an atom/ion have? What's an s, p, or d orbital? How is an ionic bond different from a covalent bond? In terms of bond s…

What are valid issuers of wiretapping requests aimed at VPN providers except the

What are valid issuers of wiretapping requests aimed at VPN providers except the court of the provider's country? Is it possible that country in which jurisdiction VPN provider do…

What atomic or hybrid orbitals make up the sigma bond between S and F in sulfur

What atomic or hybrid orbitals make up the sigma bond between S and F in sulfur hexafluoride, SF6? orbital on S + orbital on F What are the approximate F-S-F bond angles ? (list a…

What atomic or hybrid orbitals make up the sigma bond between S and F in sulfur

What atomic or hybrid orbitals make up the sigma bond between S and F in sulfur hexafluoride, SF6? orbital on S + orbital on F What are the approximate F-S-F bond angles ? (list a…

What attractive interaction can take place between side groups for each of the f

What attractive interaction can take place between side groups for each of the following pairs of alpha amino acid residues under physiological conditions. ( Remember that opposit…

What base can be used to completely deprotonate the o-proton of a ketone? B. CH,

What base can be used to completely deprotonate the o-proton of a ketone? B. CH,ONa C LDA D, NaOH 2. What is the major product of the reaction helow? (CH,NH TsOH (cat.) 2) CH:Br 3…

What behaviour should be preferred for widget initialization: 1) Required HTML i

What behaviour should be preferred for widget initialization: 1) Required HTML is generated by widget itself: Layout: <div id="my-widget"/> Initialization: $('#my-widget').m…

What best describes sugar when dissolved in water? A) A compound B) An alloy C)

What best describes sugar when dissolved in water? A) A compound B) An alloy C) A heterogeneous compound D) A mixture Why was chromatography originally developed? A) To separate d…

What by-product might have resulted if the dry ice had been exposed to moist lab

What by-product might have resulted if the dry ice had been exposed to moist laboratory air for 5 min before the Grignard reagent was poured over it? The procedure used was Prepar…

What can be said about the favorability ofthe overall reaction? This reaction is

What can be said about the favorability ofthe overall reaction? This reaction is thermodynamicallyfavorable. This reaction is thermodynamicallyneutral. This reaction is thermodyna…

What can be said about the sponatneity of the dimerization of sulfur in the gas

What can be said about the sponatneity of the dimerization of sulfur in the gas phase? 2S(g) --> S2 (g) delta H degree f KJ/mol S degree J/ (mol*K) S(g) 277 238 S2(g) 129 80. A…