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A chemistry student is asked to determine the concentration of copper ions in a 500 mL solution of copper sulfate. The student has access to a balance, a pipette, and standard solutions of sodium hydroxide and sulfuric acid. Using the mass balance calculations, what is the concentration of copper ions in the solution?

asked Jan 22 in Analytical Chemistry by Precious09K0 (2.0k points)

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What is the product obtained when 3-methyl-1-phenylpropanal is heated with Tollen's reagent?

asked Jan 21 in Organic Chemistry by SybilBruche (1.8k points)

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What is the major product formed after the elimination of HBr from but-1-ene in the presence of a strong base? Write the balanced chemical equation for the reaction.

asked Jan 21 in Organic Chemistry by TiaraFitzgib (2.1k points)

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How does increasing the temperature affect the rate of reaction between sodium thiosulfate and hydrochloric acid?

asked Jan 22 in Chemical kinetics by NanVanwagene (1.8k points)

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According to Freud, when does the latency stage of psychosexual development occur?

asked Jan 20 in Psychology by Jerry12T3434 (1.7k points)

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What is the condensed structural formula for 3,3-dimethylhexane?

asked Jan 21 in Organic Chemistry by JonasOql0066 (1.5k points)

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Identify the name of the following compound: CH3CH2CH2OH.

asked Jan 21 in Organic Chemistry by JannetteBarr (2.2k points)

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A 5 g sample of a mixture containing sand and salt is dissolved in water. The solution is filtered, and the sand is collected and dried. The dried sand has a mass of 3 g. Using mass balance calculations, determine the percentage of salt in the original mixture.

asked Jan 22 in Analytical Chemistry by PrincessDial (2.0k points)

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What is the product formed when an amine reacts with an acid anhydride? Write the balanced chemical equation for the reaction and name the product obtained.

asked Jan 21 in Organic Chemistry by VeolaBrifman (1.9k points)

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Assuming you have a mixture of ethanol and water, design a distillation column that can achieve a 95% purity of ethanol in the distillate using the minimum number of plates possible. The feed to the column contains 40% ethanol and 60% water, and the distillate and bottoms products need to be at least 95% pure. The column operates at atmospheric pressure and the feed rate is 100 kg/hr. Also, determine the reflux ratio required to achieve this separation.

asked Jan 22 in Chemical engineering by TorySelwyn2 (2.1k points)

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What is the major product formed in the dehydration of 1-methylcyclohexanol with concentrated sulfuric acid as a catalyst?

asked Jan 21 in Organic Chemistry by AbbeySorenso (1.8k points)

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Identify the number of stereoisomers that can be formed from the compound 2,3-dichlorobutane, and draw their structures.

asked Jan 21 in Organic Chemistry by AidanSewell2 (1.9k points)

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What is the drive reduction theory?

asked Jan 20 in Psychology by MagdaMeares (1.8k points)

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What is the systematic name of the following organic compound: CH3CH2CH2OH?

asked Jan 21 in Organic Chemistry by EttaKee54894 (2.1k points)

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A student is given a concentration of 0.1 M of CuSO4 and 0.2 M of AgNO3, and is asked to calculate the total resistance of an electrochemical cell with electrodes made of these two solutions separated by a salt bridge. The standard reduction potentials for Cu and Ag are +0.34 V and +0.80 V, respectively. Calculate the total resistance of the cell at 25°C assuming that the cell has a thickness of 1 cm and a cross-sectional area of 10 cm².

asked Jan 22 in ElectroChemistry by Rogelio58821 (1.7k points)

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Draw and name all possible structural isomers of C6H14 that belong to the alkane and cycloalkane families.

asked Jan 21 in Organic Chemistry by EdwinLindell (1.9k points)

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1 answer 42 views

How can we use the knowledge of the chemical makeup of different viruses to design drugs that target their specific characteristics and prevent infection?

asked Jan 22 in Medicinal Chemistry by SterlingIsr (1.7k points)

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A certain polymerization reaction has a ΔH°rxn of -250 kJ/mol. If you need to make 500 grams of the polymer, how much energy in kilojoules will be released or absorbed during the reaction?

asked Jan 22 in ThermoChemistry by StacyS111358 (2.3k points)

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Determine the oxidation state of chromium in the compound K2Cr2O7?

asked Jan 21 in Inorganic Chemistry by AliceW140134 (2.0k points)

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1 answer 164 views

Where was Ivan Pavlov based?

asked Jan 20 in Psychology by REHJon915716 (1.9k points)

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