Q: NH3 reacts with O2 to produce NO and H2O NH3+O2-->NO+H2O What is limiting reactant? a.) H2O ...
A:
Q: The dissolution reactions of gold (Au) in 1M HNO3 and 1M aqua regia (1M HNO3 + 1M HCI) are given bel...
A: Whenever there is a reversal in the direction of reaction , the concerning Eo value gets changed.
Q: Two 20.0 g ice cubes at -17.0 °C are placed into 235 g of water at 25.0 °C. Assuming no energy is tr...
A: Quantity of heat absorbed = Quantity of heat emitted Heat required for melting = moles of substance...
Q: -are soft, pliable waxes used im ressions, carding waxes b. sticky waxes c. boxing and utility waxes...
A: First we would define each type of wax : 1.) Carding wax : This wax is used for dental purpose. This...
Q: A mixture of compounds is dissolved in ether, and extracted with 10% NaHCO3 solution. The aqueous ex...
A: If the mixture contain amines, then it will be at the bottom layer of second extraction.
Q: A chemical reaction produces 479.3 kJ of heat and performs 81.6 kJ of work on the surroundings. What...
A: Given work done on surroundings = 81.6 kJ heat released = 479.3 kJ
Q: 14. Calculate the equilibrium constant for this reaction: 2Ag* + 2Hgm 2 2Ag(s) + Hg2*2 Given: Ag* + ...
A: 2Ag+ +2Hg(l) -----> 2Ag (s) + Hg2+2
Q: What will increase the speed of the reaction: N2(g)+3H(g)--> 2NH3(g) I. Increase temp II. Incres...
A: the rate of reaction increases with increasing the rate of reaction. If temperature increases, the k...
Q: When measuring length in the lab, we generally use units of inches. True False
A: True or false statement?
Q: If 52.6 mL of a 0.650 M solution of sodium hydroxide are used to react 38.5 mL of a solution of sulf...
A: Given: Concentration of NaOH = 0.650 M Volume of NaOH solution required = 52.6 mL And volume of H2S...
Q: Which of the following mixtures would result in a buffer solution? Very briefly explain why for each...
A: Since you have posted multiple unrelated questions, we are entitled to answer the first only. a) To ...
Q: 5. Show the mechanism and major product for the Diels-Alder below +
A:
Q: Rank in order of increasing strength of dispersion forces a.) Weakest to strongest: C<B<A b.) Weak...
A: Dispersion forces are intermolecular forces which depend on the molecular weight of the compound. Hi...
Q: The dissolution reactions of gold (Au) in 1M HNO3 and 1M aqua regia (1M HNO3 + 1M HCI) are given bel...
A: When the direction of reaction gets reversed then the emf value also changes its sign.
Q: Which construction would you never use in the laboratory? (A) (B) (C) (D) (E) Construction D OConstr...
A: Different types of equipments are used in the laboratory such as beaker, flask, pipette, burette, et...
Q: f 15.8 M HNO3. umber 2 and 3 at ainimum mass of the line provided
A: Solution: We know the law of conversion of mass plays important role to calculate stoichiometric amo...
Q: potassium (K) emits an alpha particle, it becomes the element
A: Answer: in
Q: Suzuki Cross Coupling Reaction Synthesis of an Unsymmetrical Biaryl via a Suzuki Cross Coupling Reac...
A: 1H NMR: CHO resonates at 9-10 ppm IR: aromatic carbonyl group show IR absorption band ~1700 cm-1 d...
Q: What are the benefits of howard formula compared to ficher projection formula
A: Introduction : Howarth projections are common way to write the structural formula of sugars in thre...
Q: Include a detailed arrow pushing mechanism for a reaction used to make ketamine or that ketamine und...
A: At first 2-Chloro cyanobenzene undergo nucleophilic reaction with cyclopentyl magnesium bromide to g...
Q: of
A: According to the question, we need to calculate the pH of the following solution. A. Here, pOH = ...
Q: Ma) Read the given paragraph and translate it into a reasonable retrosynthesis for the boxed structu...
A: Synthesis: Step 1: 4,4-dimethyl-2-pentyne reaction with sodium and liquid ammonia. Step 2: 2E - 4,4-...
Q: In which molecule does the underlined atom have an expanded octet? Select everything that apply. ...
A:
Q: Label the structure in terms of functional groups in ketamine and the hybridization of the atoms.
A: Chemical properties of an organic compound is determined by functional group attached to it. We hav...
Q: The name for the diatomic binary compound formed from fluorine and chlorine is
A: Given :- chlorine + fluorine → To identify :- diatomic binary compound formed in above situation
Q: How many mL are in 9.21?
A: How many mL are in 9.21L ?
Q: The plot given below was constructed from data that was collected for the following reaction. 6. N2(...
A:
Q: If the pH of a solution is 8.1, what is [H3O*] in the solution? What is [OH ] in the solution?
A:
Q: ne Pauli exclusion principle?
A:
Q: 24. The most probable molecular energy (kT) at 27°C is. • What fraction of the Rubidium Fluoride ion...
A:
Q: Calculate AH for the reaction below using Hess' law. C2H6(g) → C2H2(g) + H2(g) AH=? C2H2(g) +5/2O2(g...
A:
Q: The term for a solution that is a good conductor of electricity is "aqueous solution." True False
A: To solve this problem we have to know about aqueous solution.
Q: Thiocyanic acid (HSCN) is an inorganic acid (pKa = 1.1 at 25 °C) that can be classified as “strong” ...
A:
Q: Acetic acid reacts with sodium hydroxide in the following fashion.HC2H3O2(aq) + NaOH(aq) → H2O(l) + ...
A: Given Volume of acetic acid ( V1 ) = 2.50 mL = 2.5...
Q: What is the value in kJ/mol, of the lowest energy trnasition above? a.) 545 b.) 444 c.) 320 d.)...
A: The absorbance v/s wavelength curve given is,
Q: #6 For me to understand please describe ( not examples ) explain the concept of osmosis, and describ...
A: Concentration is the term used to express the amount of solute present in a given amount of solution...
Q: Calculate the energy as heat needed to increase the temperature of 0.80 mol of nitrogen, Nz, by 9.5 ...
A: Mole of nitrogen = n = 0.80 mol Temperature change = ∆T = 9.5 K Molar heat capacity = Cm = 29.1 J...
Q: which of the following when in its solid form is an example of a molecular solid? iron aluminum ox...
A: Given molecules are, iron aluminum oxide carbon dioxide or silicon dioxide
Q: why do you think clinicians and psychopharmacologists do not consider antidepressant drugs to induce...
A: Yes clinicians and pharmacologist have taken antidepressant pill at least daily . But they advice us...
Q: The noble gas in the second period. O H2 O He 0.02 O Ne O Ar
A:
Q: Tin reacts with oxygen to form tin oxide. In a particular laboratory experiment in which oxygen comb...
A: We will first find mass of sn, then mass of tin oxide. Using this we will calculate oxygen reacted.
Q: At P=40kPa and t=380, increasing the pressure at constant temp will: a.) increase average PE b.) ...
A: Given: Pressure is increased at a constant temperature.
Q: The alkaline earth metal in the third period. O Na Са O Mg Si O AI
A: Given metal :- 1) Na 2) Ca 3) Mg 4) Si 5) Al
Q: Which element(s) would you expect to behave similarly to Gadolinium? What properties of would you ex...
A: Answer - Gadolinium - Gadolinium is a chemical element with the symbol Gd and atomic number 64. Gado...
Q: Explain how you would prepare 1250 mL of a 0.150 M Na2SO4 solution
A:
Q: A biologist has two brine solutions, one containing 9% salt and another containing 36% salt. How man...
A: Given: Concentration of solution 1 = 9 % Concentration of solution 2 = 36 % Volume of final solution...
Q: The density of an unknown polymer is 1.875 g/cm³ with a % crystallinity of 50%. If the density when ...
A: Density of a substance is representative of including both amorphous and crystalline structure.
Q: Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics...
A:
Q: Joe Chemist plans to make a buffer of pH = 5.5 using acetic acid (Ka = 1.8 x 105). He has some .17 M...
A: Given: pH of buffer = 5.5 And the concentration of acetic acid = 0.17 M
Q: Given the following information, calculate the energy (in kcal) required to convert one ic cube that...
A: Mass of ice = 36 g Initial temperature = -18oC Final temperature = 37oC Number of moles of ice = 36g...
The initial population size was 790 jackelopes. After only 3 year(s), a new count was taken revealing 685 jackelopes.
Assuming the population of jackelopes is best modeled with an exponential function, estimate the number of jackelopes in the count taken after a total of 8 years
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.What is Donnan's theory? What is its importance in biophysical chemistry?text Roboto BIUA 12 1三 主 2. 4. Baking soda is an essential ingredient for most bread recipes. Without baking soda, describe how bread would be different. You may focus on taste, texture, bake time, color, size, or any other relevant characteristics in your response.
- You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C₃₄H₃₂FeN₄O₄, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 30.5 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample?You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C₃₄H₃₂FeN₄O₄, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 34.9 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample? -don't prematureley roundNormality of a solution was determined by five different titrations. The results were 9.5 mL, 8.5 mL, 9.1 mL, 9.3 mL, and 9.1 mL. Calculate the mean, median and standard deviation of this data
- Catra wanted to determine the concentration of copper(II) chloride at an unknown concentration .She began by trying to determine the value of epsilon (ε) using beers law for copper(II) chloride. Catra remembered in lab when they wanted to solve for epsilon they would test the absorbance for three different concentrations of a known solution and then graph it. Catra got frustrated and asked Shera what to do next to determine epsilon. What should Shera tell Catra?The outside temperature can be estimated based on how fast crickets chirp. At 104 chirps per minute, the temperature is 6363 °F. At 176 chirps per minute, the temperature is 8181 °F. Using this information, you can make a formula that relates chirp rate to temperature. Assume the relationship is linear, that is the points form a straight line when plotted on a graph. What is the temperature if you hear 128128 chirps per minute?Sign in to edit and save changes to this file. 1. 121 49ln→ 121 + "5oSn 2. 8Be → 2_ 3. 1°4BE → °1B + 4. 8437Rb → °+1e + 128 128 5. 55CS→ 54Xe 6. 131m "s6Ba → oy + 7. 23793Np →42HE + ...
- You have recently been hired as a researcher in a premier university. Your research deals with isolating novel antibiotics from Streptomyces species to offer solution in the growing problem of antibiotic resistance. Unfortunately, late one night you did not label the tubes and plates clearly. Now your promising work needs to be resolved with only a few of information retained. Gladly, you found the results in your notebook. Unfortunately, they are not labeled either. These graphs represent percentage of survival of bacteria after treatment with the antibiotics. Samples with antibiotic added (black bars); controls with no antibiotic added (grey bars). You need to identify which antibiotic was used per set-up (see figure). Listed below are some essential information. Antibiotic A: 0.5 kDa protein, targets peptidoglycanAntibiotic B: 20 kDa protein, targets peptidoglycanAntibiotic C: Cationic antimicrobial peptideAntibiotic D: Targets lipopolysaccharide Staphylococcus aureus: gram-positive…On the way home, Dora likes to eat cookies. One daytime, just as she reached into her backpack, swiper jumped into her path and grabbed her bag. It stole half of her cookies plus two more. A bit shaken, Dora continued home. Before she had a casual to eat a cookie, Swiper jumped into her path and stole half of her cookies plus two more. Upset, Dora continued. However, before she had a chance to eat even a piece of cookie, swiper jumped out and did the same thing- took half her cookies plus two more. Now there were only two pieces of cookies left in Dora's backpack. She sat down and began to sob. Then Swiper reappeared, feeling some sense of remorse, and told her it would return all her cookies to her if she told them how many she had altogether when she startled. How many pieces of cookies had been on Dora's backpack?Some scientists think there are living things smaller than bacteria (New York Times, January 18, 2000, p. D1). Called nanobes, they are roughly cylindrical and range from 20 to 150 nm long and about 10 nm in diameter. One approach to determining whether nanobes are living is to estimate how many atoms and molecules could make up a nanobe. If the number is too small, then there would not be enough DNA, protein, and other biological molecules to carry out life processes. To test this method, estimate an upper limit for the number of atoms that could be in a nanobe. (Use a small atom, such as hydrogen.) Also estimate how many protein molecules could fit inside a nanobe. Do your estimates rule out the possibility that a nanobe could be living? Explain why or why not.
