Chemistry concepts and calculations

A molecule with 3 single bonds and 1 lone pair of electrons around the central a

A molecule with 3 single bonds and 1 lone pair of electrons around the central atom is predicted to have what type of molecular geometry? Tetrahedral Trigonal bipyramidal Trigonal…

A molecule with three electron domains, 2 of which as bonding domains and 1 of w

A molecule with three electron domains, 2 of which as bonding domains and 1 of which is a non-bonding domain has a molecular geometry that is The maximum number of electrons that …

A monatomic, ideal gas is in a sealed container (the number of gas molecules is

A monatomic, ideal gas is in a sealed container (the number of gas molecules is always constant); the initial pressure is P1 = 1.14 x 105 Pa and the initial volume is V2 = 0.0571 …

A monoproptic weak acid was titrated against kaOH. The concentration of the weak

A monoproptic weak acid was titrated against kaOH. The concentration of the weak acid solution was 6.01 . The volume of acid used was 25 mL. The NaCH solution had a molarity of 0.…

A monoprotic acid in an extract from a tropical plant and performed the followin

A  monoprotic acid in an extract from a tropical plant and performed the following experiments: A.     - she titrates 100.00 ml of the plant extrat with .100 M NaOH. Titration mid…

A month or so ago I created my first LAMP stack and implemented a simple web sit

A month or so ago I created my first LAMP stack and implemented a simple web site that exercised each letter in that acronym. However my development setup was much less than ideal…

A more secure form of \'cookie\' could be created for SSL communications through

A more secure form of 'cookie' could be created for SSL communications through the following method. - The client generates and requests the server to sign a certificate. - Then t…

A mortar* crew is positioned near the top of a steep hill. Enemy forces are char

A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. Angling the mortar at an a…

A mortar* crew is positioned near the top of a steep hill. Enemy forces are char

A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. Angling the mortar at an a…

A mother is to give her child 20ccs of medicine every 6 hours. Unfortunately, sh

A mother is to give her child 20ccs of medicine every 6 hours. Unfortunately, she lost the syringe that came with the prescription. How many teaspoons can you instruct the mother …

A mouse is placed in a sealed chamber with air at 754.0 torr. This chamber is eq

A mouse is placed in a sealed chamber with air at 754.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 and H2O produced by the mouse. The gas volume in thi…

A mouse is placed in a sealed chamber with air at 754.0 torr. This chamber is eq

A mouse is placed in a sealed chamber with air at 754.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 and H2O produced by the mouse. The gas volume in thi…

A mouse is placed in a sealed chamber with air at 762.0 torr. This chamber is eq

A mouse is placed in a sealed chamber with air at 762.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 and H2O produced by the mouse. The gas volume in thi…

A mouse is placed in a sealed chamber with air at 762.0 torr. This chamber is eq

A mouse is placed in a sealed chamber with air at 762.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 and H2O produced by the mouse. The gas volume in thi…

A mouthwash bottle contains 20.5% alcohol by volume. If the bottle of mouthwash

A mouthwash bottle contains 20.5% alcohol by volume. If the bottle of mouthwash contains 375mL, what is the volume in mililiters of the alcohol? A patient needs 250g of glucose in…

A muddy creek (flow = 11.0 m^3/s and mud content = 700 mg/L) flows into a clean

A muddy creek (flow = 11.0 m^3/s and mud content = 700 mg/L) flows into a clean river (flow= 99m^3/s and mud content = 5 mg/L). Note: 1000L = 1 m^3 a) What is the mud concentratio…

A multipatient hyperbaric chamber has a volume of 3900 L .At a temperature of 23

A multipatient hyperbaric chamber has a volume of 3900 L .At a temperature of 23C, how many grams of oxygen are needed to give a pressure of 2.5 atm ? In a gas mixture, the partia…

A multiple choice question. Pick one of the answers below. Explain. 7. A glass v

A multiple choice question. Pick one of the answers below. Explain. 7. A glass vessel (rigid, but limited in the pressure of gas it can hold) contains 28 g nitrogen gas. Assuming …

A multiple unit process involves the production of toluene (C6H5CH3) from benzen

A multiple unit process involves the production of toluene (C6H5CH3) from benzene using a Friedel-Crafts reaction technique. Benzene (C6H6) is reacted with methyl chloride (CH3Cl)…

A multistep reaction can only occur as fast as its slowest step. Therefore, it i

A multistep reaction can only occur as fast as its slowest step. Therefore, it is the rate law of the slow step that determines the rate law for the overall reaction. Consider the…

A municipal landfill in a lightly populated Florida county serves 253,000 people

A municipal landfill in a lightly populated Florida county serves 253,000 people. Each week 85 trucks bring a total of 2,180 metric tons of municipal solid waste (MSW) to the land…

A municipal solis waste (MSW) mixture has the following composition: a) Calculat

A municipal solis waste (MSW) mixture has the following composition: a) Calculate air requirements for combustion of 100 pounds of MSW for the folowing conditions: - with theorica…

A municipal water treatment plant is designed to produce 20 million gallons per

A municipal water treatment plant is designed to produce 20 million gallons per day (MGD) of potable water. The plant treats surface water using coagulation followed by sedimentat…

A muon is a charged particle that is identical to an electron (same charge, -e,

A muon is a charged particle that is identical to an electron (same charge, -e, for example) but has a mass about 200 times greater than an electron. It is therefore possible for …

A mutation in human ATPase 6 (which corresponds to E. coli subunit a) from leuci

A mutation in human ATPase 6 (which corresponds to E. coli subunit a) from leucine to arginine at position 156 may allow the movement of protons across the membrane, but not the r…

A mutation that activates the kinase domain of a protein will result in: a decre

A mutation that activates the kinase domain of a protein will result in: a decrease in the phosphorylation of its target protein an increase in the phosphorylation of its target p…

A myoglobin similar to the example we did in class had the protonation of a hist

A myoglobin similar to the example we did in class had the protonation of a histidine residue coupled to the oxidation of a heme. The histidine had a pKA of 6.0 when the heme is o…

A natural food color ingredient company works in the extraction of an anthocyani

A natural food color ingredient company works in the extraction of an anthocyanin from purple cabbage. The solubility of this anthocyanin in methanol-water (85:15) and ethanol wat…

A natural food color ingredient company works in the extraction of an anthocyani

A natural food color ingredient company works in the extraction of an anthocyanin from purple cabbage. The solubility of this anthocyanin in methanol-water (85:15) and ethanol wat…

A natural gas contains carbon dioxide (CO_2), hydrogen sulfide (H_2S), methane (

A natural gas contains carbon dioxide (CO_2), hydrogen sulfide (H_2S), methane (CH_4 also written Cl), all other hydrocarbons (written C2+) and nitrogen (N_2). Selexol solvent is …

A natural gas-fired electric power plant has an efficiency of 27 percent with 20

A natural gas-fired electric power plant has an efficiency of 27 percent with 20 percent waste heat being released to the atmosphere as stack heat and the other 80% taken away in …

A natural pond is producing a rotten egg like smell. After some investigation it

A natural pond is producing a rotten egg like smell. After some investigation it was found that the smell was due to the presence of H2S in the lake. a) What can you say about the…

A naturally occuring water sample was collected and analyzed to determine its \"

A naturally occuring water sample was collected and analyzed to determine its "P" alkalinity. the data below is from trial 1. complete the table for the "P" alkalinity concentrati…

A nearby volcano, Lava Mountain, threatens Hazard City. The major volcanic hazar

A nearby volcano, Lava Mountain, threatens Hazard City. The major volcanic hazards to be aware of are: tephra, lava flows, pyroclastic flows, lahars, and volcanic gases. Tephra is…

A negative point charge of magnitude Q a 1.7 nc is at the center of a spherical

A negative point charge of magnitude Q a 1.7 nc is at the center of a spherical conducting shell of inner radius a 2.7 cm and outer radius b 3.5 cm. In addition, the conducting sp…

A negative sign for Delta G indicates that, at constant T and P, the reaction is

A negative sign for Delta G indicates that, at constant T and P, the reaction is exothermic the reaction is fast the reaction is spontaneous. the reaction is endothermic Delta S m…

A neighbor of mine has a lawn that isn\'t looking too good. The picture below sh

A neighbor of mine has a lawn that isn't looking too good. The picture below shows an overhead image of his house and yard. He has decided to remove all the old sod (grass), bring…

A neon atom emits light at many wavelengths, two of which areat 616.4 and 638.3

A neon atom emits light at many wavelengths, two of which areat 616.4 and 638.3 nm. Both of these transitions are to thesame final state. a) What is the energy difference between …

A neon sign is made of glass tubing whose inside diameter is 2.5 cm and whose le

A neon sign is made of glass tubing whose inside diameter is 2.5 cm and whose length is 5.5 m. Part A If the sign contains neon at a pressure of 1.75 torr at 32 C, how many grams …

A neon sign is made of glass tubing whose inside diameter is 2.5 cm and whose le

A neon sign is made of glass tubing whose inside diameter is 2.5 cm and whose length is 5.5 m. Part A If the sign contains neon at a pressure of 1.77 torr at 31 C, how many grams …

A neon sign is made of glass tubing whose inside diameter is2.5cm and whose leng

A neon sign is made of glass tubing whose inside diameter is2.5cm and whose length is 5.5m If the sign contains neon at apressure of 1.78 torr at 35 degrees C, how many grams of n…

A network I\'m working on has only a web proxy (http, https) to communicate outs

A network I'm working on has only a web proxy (http, https) to communicate outside (mostly used for cache purposes, not whitelist or blacklist support). This requires lot of confi…

A neural cell you isolate from Spongebob\'s pal Squidworth with an intracellular

A neural cell you isolate from Spongebob's pal Squidworth with an intracellular Cl^- ion concentration of 55 mM is placed in a solution containing 560 mM Cl^- (roughly approximati…

A neutral atom in the ground state of Titanium has its outer most valence electr

A neutral atom in the ground state of Titanium has its outer most valence electron in which orbital? f p s d The shift from excited state to ground state is seen in a relativistic…

A neutralization reaction was carried out in a calorimeter. The temperature of t

A neutralization reaction was carried out in a calorimeter. The temperature of the solution rose from 20.0 °C to 25.6 C. Is this reaction endothermic or exothermic? 1. A neutraliz…

A neutron atom of the isotope Hg ^200 contains Which of the following atoms cont

A neutron atom of the isotope Hg ^200 contains Which of the following atoms contains the fewest a. 232 Th b, 231 c. 245 pu d. 23 U A neutral atom of the isotope 200Hg contains a. …

A neutron is confined such that is has a nearly infinite energy outside a 0.100

A neutron is confined such that is has a nearly infinite energy outside a 0.100 nm wide region of space but zero potential energy within that 1/10 of a nanometer (0.100 nm) 1-D sp…

A new analytical method to detect pollutants in water is being tested. This new

A new analytical method to detect pollutants in water is being tested. This new method of chemical analysis is important because, if adopted, it could be used to detect three diff…

A new challenge for wastewater treatment is that the treated effluents are begin

A new challenge for wastewater treatment is that the treated effluents are beginning to be used for various beneficial uses, instead of being discharged to a receiving water. For …

A new composite grappling hook was purchased for the overhead crane in the turbi

  A new composite grappling hook was purchased for the overhead crane in the turbine building, but the manufacturer lost all records of the volume of fibers used in the process. H…