Chemistry concepts and calculations

What is the molarity of a solution prepared with 25 g NaCl in 650 ml solution? m

What is the molarity of a solution prepared with 25 g NaCl in 650 ml solution? mass 01 Nacl = 2 kg molar mass of uaCl = 58.5 g 1 mol if you were in the laboratory, how many ml of …

What is the molarity of a solution that contains 10.66g of sodium sulfate dissol

What is the molarity of a solution that contains 10.66g of sodium sulfate dissolved in 250.0ml of solution? What is the mass of potassium dichromate present in 50.0mL. of a 0.105M…

What is the molarity of a solution that contains 45.5 g NaNO3 in 125.0 mL water?

What is the molarity of a solution that contains 45.5 g NaNO3 in 125.0 mL water? How many grams of Ca(OH)2 are needed to make 100.0 mL of 0.250 M solution? If 45 mL of a 0.133 M N…

What is the molarity of a solution that contains 45.5 g NaNO3 in 125.0 mL water?

What is the molarity of a solution that contains 45.5 g NaNO3 in 125.0 mL water? How many grams of Ca(OH)2 are needed to make 100.0 mL of 0.250 M solution? If 45 mL of a 0.133 M N…

What is the molarity of a solution that results when 21.3 g of (NH_4)_3PO_4 is d

What is the molarity of a solution that results when 21.3 g of (NH_4)_3PO_4 is dissolved in H_2O and diluted to exactly 250.0 mL? a. 100 M b. 1.50 times 10^-3 M c. 0.572 M d. 1.61…

What is the molarity of an Nal solution that contains 6.0 g of Nal in 38.0 mL of

What is the molarity of an Nal solution that contains 6.0 g of Nal in 38.0 mL of solution? 0.0055 M 0.00025 M 0.046 M 0.18 M 1.2 M A 27.0 g sample of NaOH in dissolved in water, u…

What is the molarity of an aqueous phosphoric acid solution if 10.33 mL is compl

What is the molarity of an aqueous phosphoric acid solution if 10.33 mL is completely neutralized by 17.24 mL of 0.1301 M NaOH? Write a balanced molecular equation for the reactio…

What is the molarity of an aqueous solution containing 22.5 g of sucrose (C_12 H

What is the molarity of an aqueous solution containing 22.5 g of sucrose (C_12 H_12 O_12) in 35.5 mL of solution? 0.0657 M 1.85 times 10^-3 M 1.85 M 3.52 M 0.104 M Sulfuric acid i…

What is the molarity of asodium vanadate (Na 3 VO 4 ) solution if 35.6mLof the s

What is the molarity of asodium vanadate (Na3VO4) solution if 35.6mLof the solution are needed to titrate a 0.759g sample of purepotassium sulfite? VO4-3+SO3-2+4H+--->VO++SO4-2…

What is the molarity of each of the following solutions? a. you pipet 20.00ml of

What is the molarity of each of the following solutions? a. you pipet 20.00ml of 0.0600M CuCl2 into a 100.00ml volumetric flask and fill to the mark. >>>>I got 0.012M …

What is the molarity of each of the following solutions? a. you pipet 20.00ml of

What is the molarity of each of the following solutions? a. you pipet 20.00ml of 0.0600M CuCl2 into a 100.00ml volumetric flask and fill to the mark. >>>>I got 0.012M …

What is the molarity of the NaOH solution based on this titration? Next the stud

What is the molarity of the NaOH solution based on this titration? Next the student prepares a solution of an antacid tablet (which contains solid calcium carbonate) and hydrochlo…

What is the molarity of the acetic acid solution if 31.7 mL of a 0.235 M KOH sol

What is the molarity of the acetic acid solution if 31.7 mL of a 0.235 M KOH solution is required to titrate 26.0 mL of a solution of HC2H3O2? HC2H3O2(aq)+ KOH(aq) H2O(l)+ KC2H3O2…

What is the molarity of the stock solution of luminol? Express your answer with

What is the molarity of the stock solution of luminol? Express your answer with the appropriate units. Before investigating the scene the technician must dilute the luminol soluti…

What is the molarity of zinc chloride that forms when 25 g of zinc completely re

What is the molarity of zinc chloride that forms when 25 g of zinc completely reacts with copper (II) chloride to the following reaction? Assume a final solution volume of 275mL. …

What is the mole fraction of Compound A in a mixture containing 2.58 g of compou

What is the mole fraction of Compound A in a mixture containing 2.58 g of compound A (MM = 164.9 g/mol) and 3.2 g of Compound B(MM = 153.3g/mol)? What is the molality of Compound …

What is the mole fraction of O2 in a mixture of 5.06g of O2, 7.19g of N2, and 1.

What is the mole fraction of O2 in a mixture of 5.06g of O2, 7.19g of N2, and 1.31g of H2? What is the mole fraction of N2 in a mixture of 5.06g of O2, 7.19g of N2, and 1.31g of H…

What is the mole fraction of O_2 gas in a mixture of 5.08g O_2,7.17g of N_2 and

What is the mole fraction of O_2 gas in a mixture of 5.08g O_2,7.17g of N_2 and 1.32g of H_2?(Write your answer to 3 significant figures. Do not write units.) What is the partial …

What is the mole fraction of each component if 10 mL of ethyl acetate is dissolv

What is the mole fraction of each component if 10 mL of ethyl acetate is dissolved in 50 mL of toluene? One mole compound A, with vapor pressure 700 mmHg at 70 degree C, mixed wit…

What is the mole fraction of ethyl, C2H5OH in an aqueous solution that is 50% et

What is the mole fraction of ethyl, C2H5OH in an aqueous solution that is 50% ethyl alcohol by mass? Please show step by step instructions. I've been trying to understand where I …

What is the mole percent of free cocaine (weak base) insolution at pH 9.0(Bonus)

What is the mole percent of free cocaine (weak base) insolution at pH 9.0(Bonus) ? (pKb=5.59) (The answer is 80%, can you please explain what equation touse and how to work the pr…

What is the molecular equation, total ionic equation, and net ionic equation for

What is the molecular equation, total ionic equation, and net ionic equation for Cu(NO3)2 and NaOH?

What is the molecular equation, total ionic equation, and net ionic equation for

What is the molecular equation, total ionic equation, and net ionic equation for Cu(NO3)2 and NaOH?

What is the molecular equation, total ionic equation, and net ionic equation for

What is the molecular equation, total ionic equation, and net ionic equation for Cu(NO3)2 and NaOH?

What is the molecular formula (hill method) of salicylic acid? Use the appropria

What is the molecular formula (hill method) of salicylic acid? Use the appropriate capitalization of your atomic symbols Given the following atomic weights what is the molecular w…

What is the molecular formula for CH_3 -(CH_2)_4-CH_3? A. CH_3-CH_2-CH_2-CH_2-CH

What is the molecular formula for CH_3 -(CH_2)_4-CH_3? A. CH_3-CH_2-CH_2-CH_2-CH_2-CH_3 B. hexane C. C_6H_12 D. C_6H_14 Isomers will have A. The same number of C atoms B. Differen…

What is the molecular formula for a compound with an empirical formula of CH2O i

What is the molecular formula for a compound with an empirical formula of CH2O if its experimentally determined molecular weight is 180 amu? What is the maximum number of moles H2…

What is the molecular formula of each compound? (Type your answer using the form

What is the molecular formula of each compound? (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.) (a) em…

What is the molecular formula of each compound? (Type your answer using the form

What is the molecular formula of each compound? (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.) (a) em…

What is the molecular formula of each compound? (Type your answer using the form

What is the molecular formula of each compound? (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.) (a) em…

What is the molecular formula of each compound? (Type your answer using the form

What is the molecular formula of each compound? (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.) (a) em…

What is the molecular geometry of an AX_3E_2 molecule? 3. Number of lone e^- pai

What is the molecular geometry of an AX_3E_2 molecule? 3. Number of lone e^- pairs on As in AsF_3 4. Hybridization of As in AsF_3 5. In problem # 1, which of the molecules are pol…

What is the molecular geometry of the carbonyl carbon of an aldehyde? A. trigona

What is the molecular geometry of the carbonyl carbon of an aldehyde? A. trigonal planar B. linear C. trigonal pyramidal D. tetrahedral What is the molecular geometry of the carbo…

What is the molecular geometry on the carbon atom of linear trigonal planar tetr

What is the molecular geometry on the carbon atom of linear trigonal planar tetrahedral none of the above What is the H-C-H bond angle in methyl anion, CH_3 ? 0 109 120 180 Calcul…

What is the molecular shape for the molecules shown above? All three molecules a

What is the molecular shape for the molecules shown above? All three molecules are linear CO_2 is linear, SO_2 and O_3 are cyclic CO_2 and O_3 are linear, SO_2 is bent (angular) C…

What is the molecularity of each step in the following reaction sequence? Step 1

What is the molecularity of each step in the following reaction sequence? Step 1a: Cl2 ? 2Cl Step 1b: 2Cl ? Cl2 Step 2: Cl + CHCl3 ? HCl + CCl3 Step 3: Cl + CCl3 ? CCl3 Answers: a…

What is the molecularity of each step in the following reaction sequence? Step 1

What is the molecularity of each step in the following reaction sequence? Step 1a: Cl2 ? 2Cl Step 1b: 2Cl ? Cl2 Step 2: Cl + CHCl3 ? HCl + CCl3 Step 3: Cl + CCl3 ? CCl3 (A) Step 1…

What is the molecularity of each step in the following reaction sequence? Step 1

What is the molecularity of each step in the following reaction sequence? Step 1a: CI_2 rightarrow 2Cl Step 1b: 2Cl rightarrow Cl_2 Step 2: Cl + CHCl_3 rightarrow HCl + CC1_3 Step…

What is the molecule shown below called? A) glycosaccharide B) nucleotide C) nuc

What is the molecule shown below called? A) glycosaccharide B) nucleotide C) nucleoside D) nitrogenous base E) pentose Which of the following statements is false? A) DNA contains …

What is the molecule with the electronic configuration of 1s^2 2s^2 2p^3? Na C N

What is the molecule with the electronic configuration of 1s^2 2s^2 2p^3? Na C N O S How many bonds should form with the following configuration? 1s^2 2s^2 2p^5 1 2 3 4 5 NA What …

What is the monoisotopic peak? B23 Kratos PC Avima CFFplus V2.4.1: Mode reflectr

What is the monoisotopic peak? B23 Kratos PC Avima CFFplus V2.4.1: Mode reflectron Power 58, PEod (u 2300 (bin 102) pectrum for sample A student.doc 2130.15 2089, 18 2100 2110 212…

What is the monoisotopic peak? Data: BSA-0001.1B231 May 2007 1122 Cat Training 3

What is the monoisotopic peak? Data: BSA-0001.1B231 May 2007 1122 Cat Training 3 Kratos PCAxima CFRplus V2.4-1: Mode reflectron Power: 58.PExt. @2300 bin 102) 238 miMsumF16398 mM …

What is the more stable form of 1,3- cyclohexanedione? Of the compounds listed b

What is the more stable form of 1,3- cyclohexanedione? Of the compounds listed below, which one has (acidic) alpha hydrogens? Which of the following compounds is the strongest car…

What is the most acidic hydrogen on the molecule below? H D Question 2 Which of

What is the most acidic hydrogen on the molecule below? H D Question 2 Which of the following correctly describes the mechanistic steps of the following reaction? 1. NaNH 2. CH3I …

What is the most effective suppression agent for each combustible product? The t

What is the most effective suppression agent for each combustible product? The two combustible products that I have chosen are: Magnesium (class d) and Gasoline (class b). INTRODU…

What is the most efficient algorithm for finding the median of an array when the

What is the most efficient algorithm for finding the median of an array when the available operations are limited to Max(), Min(), Multiply, Add, and no conditionals are allowed. …

What is the most efficient cycle than can be executed and a sink at temperature

What is the most efficient cycle than can be executed and a sink at temperature tou_c? Rankine cycle Otto cycle How do the efficiencies of the Otto and Diesel cycles compare same …

What is the most maintainable and efficient way to architect a web application w

What is the most maintainable and efficient way to architect a web application who's purpose is to host and generate websites which can be customized to a certain degree? There ar…

What is the most soluble salt of the following set? A) Al(OH)_3 with K_sp = 1.9

What is the most soluble salt of the following set? A) Al(OH)_3 with K_sp = 1.9 times 10^-33 B) Fe(OH)_3 with K_sp = 2.6 times 10^-39 C) Sn(OH)_2 with K_sp = 1.6 times 10^-19 D) A…

What is the most stable conformation of cis -1-sec-butyl-4-methylcyclohexane? Ho

What is the most stable conformation of cis -1-sec-butyl-4-methylcyclohexane? How many axial hydrogens are present in the following molecule? A. two B. three c. four D. five E. si…