Chemistry concepts and calculations

1. If you observed the position of Mars relative to the background of stars from

1. If you observed the position of Mars relative to the background of stars from night to night, which way would Mars move relative to the stars? Always East Usually West, but som…

1. If you want to test the acidity of the soil withough waiting for hydrangea gr

1. If you want to test the acidity of the soil withough waiting for hydrangea growth, you can add vinegar (acetic acid) and see if there is any reaction. Is the soil acidic or bas…

1. If you were to make a barometer out of water instead of Hg, how high must the

1. If you were to make a barometer out of water instead of Hg, how high must the column of water be to exert a pressure equal to that of a 760 mm column of Hg? The density of wate…

1. If you were to make a barometer out of water instead of Hg. how high must the

1. If you were to make a barometer out of water instead of Hg. how high must the column of water be to exert a pressure equal to that of a 760 mm column of Hg? The density of wate…

1. Ignoring any side reactions and assuming the reaction occurs completely, how

1. Ignoring any side reactions and assuming the reaction occurs completely, how large (in kg) an oxygen candle (KClO3) would be needed to supply 8 people with enough oxygen for 24…

1. Ignoring any side reactions and assuming the reaction occurs completely, how

1. Ignoring any side reactions and assuming the reaction occurs completely, how large (in kg) an oxygen candle (KClO3) would be needed to supply 8 people with enough oxygen for 24…

1. Ignoring any side reactions and assuming the reaction occurs completely, how

1. Ignoring any side reactions and assuming the reaction occurs completely, how large (in kg) an oxygen candle (KClO3) would be needed to supply 8 people with enough oxygen for 24…

1. Ignoring any side reactions and assuming the reaction occurs completely, how

1. Ignoring any side reactions and assuming the reaction occurs completely, how large (in kg) an oxygen candle (KClO3) would be needed to supply 8 people with enough oxygen for 24…

1. Imagine a researcher allowed the paper chromatogram to develop for far longer

1. Imagine a researcher allowed the paper chromatogram to develop for far longer than necessary in the mobile phase, such that the solvent front ran into the top edge of the paper…

1. Imagine that you have a closed loop of wire sitting on a table and a bar magn

1. Imagine that you have a closed loop of wire sitting on a table and a bar magnet in your hand. You are allowed to move the magnet any way you’d like, but you may not touch the w…

1. Imagine that you run a mixture of the methylbutene products through GC and yo

1. Imagine that you run a mixture of the methylbutene products through GC and you find twolarge peaks. One peak has a retention time of 2.52 minutes and the other peak has a reten…

1. Imagine that you start with 17.4 mL of a 0.26 M solution of CH 3 COOH (acetic

1. Imagine that you start with 17.4 mL of a 0.26 M solution of CH3COOH (acetic acid) and you titrate it to the equivalence point with a 0.4M solution of barium hydroxide. What is …

1. Imagine you are carrying out an exothermic reaction. What happens to the posi

1. Imagine you are carrying out an exothermic reaction. What happens to the position of equilibrium if this reaction is heated? 2. On a molecular level and using the concepts of k…

1. Imagine you are carrying out an exothermic reaction. What happens to the posi

1. Imagine you are carrying out an exothermic reaction. What happens to the position of equilibrium if this reaction is heated? 2. On a molecular level and using the concepts of k…

1. Imagine you have a saturated solution of Ca(OH)2, at equilibrium, that has so

1. Imagine you have a saturated solution of Ca(OH)2, at equilibrium, that has some undissolved Ca(OH)2 solid on the bottom of the test tube. If you add an additional scope of Ca(O…

1. Imagine you have a saturated solution of Ca(OH)2, at equilibrium, that has so

1. Imagine you have a saturated solution of Ca(OH)2, at equilibrium, that has some undissolved Ca(OH)2 solid on the bottom of the test tube. If you add an additional scope of Ca(O…

1. Implement a Python function square(n) that takes a single positive integer ar

1. Implement a Python function square(n) that takes a single positive integer argument n and returns True if and only if n is a perfect square (i.e., there exists an integer k suc…

1. In -amino acids the amino and carboxy lic acid groups are separated by- a) tw

1. In -amino acids the amino and carboxy lic acid groups are separated by- a) two carbon atoms b) one carbon atom c) peptide linkage d) amide linkage e) none of these 2. Amino aci…

1. In Excerpt 2, which column displays categorical values? a. column 1 b. column

1. In Excerpt 2, which column displays categorical values? a. column 1 b. column 2 c. column 3 2. In Excerpt 2, which column shows quantitative values? a. column 1 b. column 2 c. …

1. In France, grapes are 1.73 Euros per kilogram. What is the cost of grapes in

1. In France, grapes are 1.73 Euros per kilogram. What is the cost of grapes in dollars per pound, if the exchange rate is 1.33 dollars per Euro? 2. Wine is 15 % (by volume) alcoh…

1. In Part 1A of the experiment, your first mixture (Mixture I) will be made fro

1. In Part 1A of the experiment, your first mixture (Mixture I) will be made from the following reactants, with water as the solvent: 10.0 mL 4.0 M acetone + 10.0 mL 1.0 M HCl + 1…

1. In Part 1A of the experiment, your first mixture (Mixture I) will be made fro

1. In Part 1A of the experiment, your first mixture (Mixture I) will be made from the following reactants, with water as the solvent: 10.0 mL 4.0 M acetone + 10.0 mL 1.0 M HCl + 1…

1. In a MIPS32 program, the instruction at memory address 0x0040_C408 is j end_i

1. In a MIPS32 program, the instruction at memory address 0x0040_C408 is j end_if which jumps to the label end_if which is at memory address 0x0041_829C. What would be the encodin…

1. In a combustion process we need to have a flame temperature between 2250 and

1. In a combustion process we need to have a flame temperature between 2250 and 2300 C with an air excess between 5 and 15 %. The candidates are Acetylene (C2H2) and Butane (C4H…

1. In a computer programming language, syntax is... a. The formal statement of t

1. In a computer programming language, syntax is... a. The formal statement of the original problem. b. The set of steps by which a problem is to be solved. c. The sequence of ste…

1. In a hypothetical reaction leading to the formation of carbon dioxide, it was

1. In a hypothetical reaction leading to the formation of carbon dioxide, it was found that at 237 seconds the concentration of carbon dioxide was 0.333 mol/L and at 691.7 seconds…

1. In a mitochondrion, the TCA cycle cannot continue on indefinitely without oxy

1. In a mitochondrion, the TCA cycle cannot continue on indefinitely without oxygen because the electron transport chain will be incapable of oxidizing NADH and FADH2. a.) True b…

1. In a problem involving the mixing of a weak acid solution with a strong base

1. In a problem involving the mixing of a weak acid solution with a strong base solution (such as the titration of a weak acid with a strong base), before attempting to calculate …

1. In a reaction involving the iodination of acetone, the following volumes were

1. In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 10 mL 4.0 M acetone + 10 mL 1.0 M HCl + 10 mL 0.0050 M I2 + …

1. In a reaction involving the iodination of acetone, the following volumes were

1. In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 10 mL 4.0 M acetone + 10 mL 1.0 M HCl + 10 mL 0.0050 M I2 + …

1. In a reaction involving the iodination of acetone, the following volumes were

1. In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 10 mL 4.0 M acetone + 10 mL 1.0 M HCl + 10 mL 0.0050 M I2 + …

1. In a reaction involving the iodination of acetone, the following volumes were

1. In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 10 mL 4.0 M acetone + 10 mL 1.0 M HCl + 10 mL 0.0050 M I2 + …

1. In a reaction involving the iodination of acetone, the following volumes were

1. In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 5mL 4.0 M acteon + 10ml 1.0 M HCl + 10 mL 0.0050 M I2 + 25 m…

1. In a reaction, 90.00 mL of 0.90 M HC(a) and 110.00 mL of 1.00 M NaOH(aq) were

1. In a reaction, 90.00 mL of 0.90 M HC(a) and 110.00 mL of 1.00 M NaOH(aq) were added to a constant pressure calorimeter. The increase in temperature was 9.5 °C HCI(aq) + NaOH(aq…

1. In a reaction, 90.00 mL of 0.90 M HC(a) and 110.00 mL of 1.00 M NaOH(aq) were

1. In a reaction, 90.00 mL of 0.90 M HC(a) and 110.00 mL of 1.00 M NaOH(aq) were added to a constant pressure calorimeter. The increase in temperature was 9.5 °C HCI(aq) + NaOH(aq…

1. In a simple page (no images or elaborate design needed), Create a page with a

1. In a simple page (no images or elaborate design needed), Create a page with a select box in which you ask the user whether or not they have registered to vote in the upcom…

1. In a small container, dissolve 0.5 goftable salt (NaCl in 10 mLof distilled w

1. In a small container, dissolve 0.5 goftable salt (NaCl in 10 mLof distilled water to make a -1 M solution. 2. In a small container, dissolve 2 g of table sugar (sucrose) in 10 …