Chemistry

What is the millimolar concentration of ethanol (Mw = 46 g/mol) in the bloodstream of a person with a blood alcohol content of 0.08% w/v? (Mw = 46 g/mol)?
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seventy five milimeters of a solution made up of 6.0g of naoh dissolved in 2.0l of water is titrated with 0.059m h3po4. how much h3po4 is needed to reach the endpoint
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electron affinity measures how easily an atom gains an electron.
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beef carcasses with b maturity are in which age group?
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Which of the following options correctly describe the mechanism of radical polymerization? Select all that apply.o Formation of a radical by the radical initiator is the first step in this process.o The combination of two radicals will terminate the polymerization process.o The first step is homolytic cleavage of the alkene C=C bond to form two radicals. o Each propagation step involves the addition of two carbon radicals. Each propagation step involves the reaction of a carbon radical with another molecule of monomer.
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What value do you calculate for the ratio t1/2(0.05M) / t1/2(0.01M) from your experimentally measured half-lives at 55 C?
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do atoms rearrange in predictable patterns during chemical reactions
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which of the following formulas in incorrect for a cobalt(iii) compound? group of answer choices cocl3 copo4 coco3 co2o3
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A reaction has g = 18.2 kj/mol. Which of the following statements is true? Select all that apply. Choose one or more: a)The reaction is spontaneous at standard conditions. b)K
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most acidic and least acidic of the following acids: a) ch3ccl2co2h b) ch3ch co2h c) ch3chchco2h d) ch3ch2co2h
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Consider the reaction: HC2H3O2(aq) + H2O(l) H3O+(aq) + C2H3O2-(aq) Kc = 1.8 * 10-5 at25C If a solution initially contains 0.210 M HC2H3O2, what is the equilibrium concentration of H3O + at 25 C?
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Consider this reaction: 4NH3(g) + 3O2(g) --> 2N2(g) + 6H20(g) If the rate of formation of N2 is 0.10 M s-1, what is the corresponding rate of disappearance of O2?1: 0.10 M s-12: 0.15 M s-13: 0.30 M s-14: 1.5 M s-1
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For each reaction, predict the sign and find the value of deltaS^0:(a) 3NO2(g) + H2O(l) --> 2HNO3(l) + NO (g)(b) N2(g) + 3F2(g) --> 2NF3(g)(c) C6H12O6(s) + 6O2(g) --> 6CO2(g) + 6H2O(g)
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16. Who was the first modern chemist
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The volume of 6.00M HCL needed to make 0.32L of 3.0M HCL is
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A student weighs out a 2.17 g sample of KOH, transfers it to a 300. mL volumetric flask, adds enough water to dissolve it and then adds water to the 300. mL tick mark.What is the molarity of potassium hydroxide in the resulting solution?
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a solution is made by dissolving 12.50 g of naoh in water to produce 2.0 l of solution. what is the ph of this solution?
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The vast majority of contaminants and pathogens can be removed from the surfaces of tools and implements through proper cleaning. A surface must be properly cleaned before it can be properly disinfected.There are three ways to clean your tools or implement
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When a system is at equilibrium, ________.a.) the reverse process is spontaneous but the forward is notb.) the forward and the reverse are both spontaneousc.) the forward process is spontaneous but reverse process is notd.)the process is not spontaneous in either directione.) both forward and reverse processes have stopped
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cesium-131 has a half-life of 9.7 days. what percent of a cesium-131 sample remains after 66 days?
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Be sure to answer all parts. Write the structural formula of a compound of molecular formula C4H8 Cl2 in which none of the carbons belong to methylene groups. Cl2 at the terminal end. CH3 on both ends of the chain.
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The product of the nuclear reaction in which 28Si is subjected to neutron capture followed by alpha emission is ________.A) 31SB) 33SC) 23MgD) 25MgE) 25Al
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in cell notation, the information is typically listed in which order? select the correct answer below: anode, anode solution, cathode solution, cathode anode, anode solution, cathode, c
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An oxygen atom has a mass of 2.66 10 -23 g and a glass of water has a mass of 0.050 kg.Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.What is the mass of 1 mole of oxygen atoms? Round your answer to 3 significant digits.goHow many moles of oxygen atoms have a mass equal to the mass of a glass of water?0Round your answer to 2 significant digits.
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