Chemistry concepts and calculations

please help :) ndow Help 18% 5 rse Content each of the s Question Completion Sta

please help :) ndow Help 18% 5 rse Content each of the s Question Completion Status: identity each of the following molecules as either IONIC (using a capital 7') or COVALENT (usi…

please help A system for heating water from an inlet temperature of T_m, r = 20

please help A system for heating water from an inlet temperature of T_m, r = 20 degree C to an outlet temperature of T_m _o = 60 degree C involves passing the water through a thic…

please help ASAP One mole of ____ contains the least number of atoms. A) S_8 B)C

please help ASAP One mole of ____ contains the least number of atoms. A) S_8 B)CH_4 C)Al_2(SO_4)_3 D)Na_3PO_4 E) C_6H_14 Which of these compounds is a weak electrolyte? A) NaCl B)…

please help An electrical heater is used to heat 1 liter of water from 14 degree

please help An electrical heater is used to heat 1 liter of water from 14 degree C to the boiling temperature at atmospheric pressure. Derive an expression for the water temperatu…

please help At a certain temperature, the equilibrium constant K for the followi

please help At a certain temperature, the equilibrium constant K for the following reaction is 642.: CL,(8) + CHCLH)+ CC1,) Use this information to complete the following table. S…

please help Crystalline sodium Bicarbonate may be decomposed to Sodium Carbonate

please help Crystalline sodium Bicarbonate may be decomposed to Sodium Carbonate (Light Ash) according to the overall reaction In reality the reaction proceeds via a number of int…

please help Hydrogen Cyanide gas is to be absorbed into an aqueous sulphuric aci

please help Hydrogen Cyanide gas is to be absorbed into an aqueous sulphuric acid solution at 2 bar. The overall gas-side mass transfer coefficient is 0.7 mol.m^-2.s^-1 and the li…

please help In living cells, small molecules react together to make much larger

please help In living cells, small molecules react together to make much larger ones. Are these processes accompanied by increases or decreases or no change in the entropy of the …

please help Match the following chemical terms to the descriptions: A Deliquesce

please help Match the following chemical terms to the descriptions: A Deliquescent B Hydroscopic C Effervescent D Efflorescence E Evanescent F Evaporite G Solvent H Raffinate I Al…

please help Mid-term Exam CHM250, spring 2018 NAME (print) 1. Recrystallization

please help Mid-term Exam CHM250, spring 2018 NAME (print) 1. Recrystallization 1)Why are stemless funnels used instead of long-stem funnels to filter hot solutions through filter…

please help Molar Mass of Butane Pre mal s cyinder was released into the Calcula

please help Molar Mass of Butane Pre mal s cyinder was released into the Calculate the mass or cm, that · 2 Calculate the temperature of the water (and thus Find the vapor pressur…

please help One of the types of fuel cells is called a PEM fuel cell, based on w

please help One of the types of fuel cells is called a PEM fuel cell, based on what it uses to make it work. What does PEM stand for? Polymer Electron Molecule Polymer Electrolyte…

please help Rena 4 minutes ago 7. How do you know when two variables are inverse

please help Rena 4 minutes ago 7. How do you know when two variables are inversely proportional and direct proportional to each other? Give one example of two variables that are i…

please help The following are Bronsted a acid-base reactions. From the group abo

please help The following are Bronsted a acid-base reactions. From the group above(A,B,C)select the one with the largest equilibrium constant,k, From the group above(A,B,C)select …

please help Use the following information for questions 10-13 From the following

please help Use the following information for questions 10-13 From the following standard enthalpies of formation and entropies: KCIO3 (s)aHof-391.2 kJ/mole So 0.143 kJ/mole K KCI…

please help You have been called in as a consultant for the firm Alcohols Unlimi

please help You have been called in as a consultant for the firm Alcohols Unlimited, which wants to build a plant to produce 3-methyl-1-butanol, (CH3)2CHCH2CH2OH. The research dir…

please help a) 4 and 24.) (8 pts) Consider the following reaction: 3 NO (e color

please help a) 4 and 24.) (8 pts) Consider the following reaction: 3 NO (e colorless H -156 kJ NO2( N2 red/orange colorless For each of the following changes predict what will hap…

please help and and There are x valence electrons in the NO2-1 ion and the bond

please help and and There are x valence electrons in the NO2-1 ion and the bond order is y. x = 17 and y = 3 x = 18 and y = 2.5 x = 17 and y = 2 x = 17 and y = 1.5 x = 12 and y = …

please help and explain... I am beyond lost on this assignment 1. A certain proc

please help and explain... I am beyond lost on this assignment 1. A certain process has H>0 and S<0. Which of the following is a correct conclusion about this process   Non …

please help answer these Rank the oxoacids of iodine according to strength. acid

please help answer these Rank the oxoacids of iodine according to strength. acid-base reaction are given below. Of the three reaction arrows presented in each reaction, select the…

please help answer this question 1. Compare the standard deviation for your marb

please help answer this question 1. Compare the standard deviation for your marble mass measurements with that for your marble density measurements. Explain any differences or sim…

please help as soon as possible 6 pts on I Match the best response t Choose J Th

please help as soon as possible 6 pts on I Match the best response t Choose J The composition of a compound is noted by this A mixture whose components can be seen as individual s…

please help as soon is possible A coke sample is prepared by transferring 5.00 m

please help as soon is possible A coke sample is prepared by transferring 5.00 ml. (plusminus 0.01 mL) of the unknown soft drink into a 100 mL (plusminus 0.08 mL) volumetric flask…

please help as soon is possible The following two questions are OPTIONAL: 18-24

please help as soon is possible The following two questions are OPTIONAL: 18-24 and 18-25; 19-6 (bonus). IR relased: IR-1: How many vibrational modes do Nz molecules have?How abou…

please help d and e Define Raoult\'s Law Explain what is meant by \"a gas is sat

please help d and e Define Raoult's Law Explain what is meant by "a gas is saturate with respect to a vapour". A stream of Nitrogen containing 50 mol% Propanone vapour leaves a ch…

please help explain detailedly Which of the following is consistent with the lin

please help explain detailedly Which of the following is consistent with the line spectrum of the hydrogen atom? The nucleus is undergoing gamma-decay. Energy of the electron is q…

please help fast! A) 1.70 . 10-5 k B)-1.70 . 105 kJ C)248 kJ D)-1.10 kJ 28. Dete

please help fast! A) 1.70 . 10-5 k B)-1.70 . 105 kJ C)248 kJ D)-1.10 kJ 28. Determine ta, for the reaction descried by the chemical equation given the folowing tt values {in kJrno…

please help find the other calculations with work so I can understand it! thank

please help find the other calculations with work so I can understand it! thank you Chem 1A Acid-base Titration B. Determination of the molar mass of an unknown solid UNKNOWN #: T…

please help finish and solve errors for this c language structures program. c la

please help finish and solve errors for this c language structures program. c language. structures. please solve it the most basic way! 1) Define a structure type to represent a f…

please help finsh and solve errors for this program. c language. structures. 1)

please help finsh and solve errors for this program. c language. structures. 1) Define a structure type to represent a fraction (obviously, there must be two fields: numerator and…

please help i don\'t understand what i am suppose to do there is what i did and

please help i don't understand what i am suppose to do there is what i did and it is followed by the questions C. Octahedral complexes. 1. Construct 6 ethylenediamine molecules: C…

please help me Question:1 Write the formula and calculate the molar mass of KHP

please help me Question:1 Write the formula and calculate the molar mass of KHP (KHP is not potassium hydrogen phosphorus). Question:2 When conducting this experiment, why is it n…

please help me Shiekh.com Green Monday Sale! kellena.beckford@vahoo.com 6:20 PM

please help me Shiekh.com Green Monday Sale! kellena.beckford@vahoo.com 6:20 PM 2 O MARK AS READ DEL Questions 1 through 3 are hased on the following experiment A chemical test fo…

please help me Tool steel can be hardened to a higher hardness than alloy steels

please help me Tool steel can be hardened to a higher hardness than alloy steels a. True b. False What is the typical carbon equivalent for welding on alloy steels a. 30% b. 3% c.…

please help me all question in this picture Q. 6. Given the following data for t

please help me all question in this picture Q. 6. Given the following data for the NH+NO,N2+2H,0 reaction: Trial [NH4+] [NOS] Rate 0.010 M 0.020 M 0.020 M/s 2 0.015 0.020 0.030 3 …

please help me and show full answer. Process engineering Ethylene oxide (C2H40)

please help me and show full answer. Process engineering Ethylene oxide (C2H40) is produced by the oxidation of ethylene C2H). A portion o ethylene also reacts to form CO2 and H2O…

please help me answer all these correctly. the second picture asks whether each

please help me answer all these correctly. the second picture asks whether each one increases, decreases, or remains the same or no change Consider the following system at equilib…

please help me answer number 12, thank you! P (h) The consump 16 11 For the reac

please help me answer number 12, thank you! P (h) The consump 16 11 For the reaction Cta)De c nsive . Dg) IC)s. fime is phe of sime ous chaptec meaurd over time to er the rate of …

please help me answer question from number 2(melring point) and 3(recrystalizati

please help me answer question from number 2(melring point) and 3(recrystalization) Punctional groups >like alcohols, carboxylic acids, esters, amines, amides, etc. u. rewnah p…

please help me answer some science questions: Question 1: Choose all answers tha

please help me answer some science questions: Question 1: Choose all answers that correctly complete the following statement: Science is... Question 1 options: a set of careful st…

please help me answer these. thank you 1) List the types of intermolecular force

please help me answer these. thank you 1) List the types of intermolecular forces that ex ist between molecules (or basic units) in cach of the l b) Chloroform (CH,Cl) a) Sodium c…

please help me answer these. thank you 1) List the types of intermolecular force

please help me answer these. thank you 1) List the types of intermolecular forces that ex ist between molecules (or basic units) in cach of the l b) Chloroform (CH,Cl) a) Sodium c…

please help me answer this 3 part question .. the question a. Calculate the perc

please help me answer this 3 part question .. the question a.       Calculate the percentage ofempty space in a face-centered cubic lattice, and show that it doesnot depend on the…

please help me fill the last 5 blanks please about the enthalpies and provide th

please help me fill the last 5 blanks please about the enthalpies and provide the equation and steps if possible thanks so much. Determination of AHe.of a cation Formula of salt s…

please help me find part 2 in this question with explanation. thanks Print Perio

please help me find part 2 in this question with explanation. thanks Print Periodic Table Ebook Question 11 of 18 (1 point) X Incorrect X In The rate constant for the reaction of …

please help me i do not understand what to do at all i amsuper confused please h

please help me i do not understand what to do at all i amsuper confused please help. thank you

please help me in part B Chrome File Edit View History Bookmarks People Window H

please help me in part B Chrome File Edit View History Bookmarks People Window Help Thu 8:40 PM a Online ntegral Calc x Google Translate x myBoiseState we x MPearson's MyLab& …

please help me in this both Q 1) & 2) 1) What is the coordination number of... a

please help me in this both Q 1) & 2) 1) What is the coordination number of... a) Na in Na(bcc)? b) Na in NaCl? c) Cl in CsCl? 2) In tribute to the late great Canadian penny: …

please help me match what goes in blank?! Chatelier\'s principle slates that whe

please help me match what goes in blank?! Chatelier's principle slates that when equilibrium is disturbed, the rates of the forward and reverse reactions change to relieve that st…

please help me on the calculation. 97 Titration of Vinegar Objective Te determin

please help me on the calculation. 97 Titration of Vinegar Objective Te determine the concentration (molarity and weight percent) of acetic acid in a vinegar sarupic Back round Vi…