Q: 1.4 Consider the structure below: НО. OH OH c) Name at least 4 of the reported health benefits of…
A:
Q: What would you call a solution with a low concentration of protons?
A: The concentration of proton or hydrogen ion describes the acidity of basicity of solution. This is…
Q: Which of these molecules have chiral center?
A:
Q: Read each description in the first column of the table below. If any chemical element with atomic…
A: Given : description of elements. We know in a periodic table there ate 7 periods and 18 groups.
Q: The pressure above a pure sample of solid Substance X at -200. °C is raised. At what pressure will…
A: Initial state is solid. Initial temperature, T = - 200 + 273.15 = 73.15 K The pressure is raised…
Q: What would the overall charge of this peptide sequence (Asp-Ala-Phe-Lys-His) at pH 12 be?
A: we have to determine the overall charge at pH = 12, on the given peptide sequence :…
Q: Answer the following problems by showing your complete solutions and interpretations. Please be…
A: 3.t=2.303/klog(co/ct) Co=440g Ct=? t=28,703 years k=0.693÷6000(half life given in the passage)…
Q: the periodic table has been called as periodic because? please choose from choices and explain.
A: In this question, we have to choose the correct option and explain why the periodic table has been…
Q: How many grams of methanol should be massed on a scale if an experiment requires 5.25 mL of…
A:
Q: When we talk about atomic arrangement, what exactly do we mean?
A: Atomic Arrangement consist of electrons protons and neutrons which are the basic fundamental of…
Q: Use the molecular orbital theory to explain the fundamentals of acid-base interactions (frontier…
A: Use the molecular orbital theory to explain the fundamentals of acid-base interactions (frontier…
Q: Shown below is the equilibrium between acetic acid and acetate. A H3C C. Acetic Acid -H pKa = 4.76…
A: we need to find the pH at which Acetic acid is 3/4 ionized.
Q: If 13.9 g of O₂ is required to inflate a balloon to a certain size at 36.0 °C, what mass of O2 is…
A: The relationship between the temperature, pressure, and volume of the initial and final state of an…
Q: Unknown 3 ¹H NMR data (ppm) multiplicity integration 0.86 t 3 1.50 2 2.02 2 6.71 1 7.24 1 sextet t S
A: NMR SPECTROSCOPY By capturing the interaction of radiofrequency (Rf) electromagnetic radiations with…
Q: lab sample containing sodium chloride, ammonium chloride and sand. It initially weighs 3.115 grams,…
A:
Q: I am having trouble distinguishing between primary, secondary and tertiary amines. I read that…
A: The N-H stretching frequency of amines is observed in the region of 3400-3200 cm-1 in the IR…
Q: Using the chemical formulas from Q1, calculate the molar mass of the reactant and product below.…
A:
Q: What distance in miles can you drive in your new Prius hybrid, if your car gets 48.0 miles per…
A: We would use the given car average and volume of gas to calculate the distance.
Q: the correct number of significant figures in 2.33×18
A: • We need to calculate the number of significant figures for the expression in 2.33 × 18
Q: 2.( J Given the standard reduction potentials (E°) for ubiquinone (Q) and NADP+ provided below,…
A:
Q: Chemistry state what would be observed when an aqueous solution of zinc tetraoxosulphate (vi)…
A: The solution of zinc tetraoxosulphatei (vi) is prepared from copper (ii) tetraoxosulphate (vi)…
Q: 1.Were the fatty acid propyl esters (biodiesel) formed in this reaction more or less polar than…
A:
Q: 3 Decompression sickness (also known as the bends) is a condition that affects divers and others…
A: Ionic compounds are made up of ions and contain electrostatic interactions among ions. Polar…
Q: How many grams of calcium chloride will be produced when 31.0 g of calcium carbonate is combined…
A:
Q: Using a phase diagra Use the phase diagram of Substance X below to find the boiling point of X when…
A: Boiling point is referred to the temperature at which conversion of a substance from its liquid…
Q: 3.which gases can be used as carrier gas in GC? 5:42
A: Gas chromatography:- it is a technique of separating different compounds based on their volatility…
Q: What weight of water must be added to 50lb of a 45% brine solution to yield a 20% solution? b. 55.1…
A: =>Since you have posted multiple questions so we are answering first question(53). For remaining…
Q: Suppose you want to make a buffer with the above acid HA (pka 7.20) You start with 65 mLs of 1 M HA…
A: Given: pKa = 7.20 Volume of HA = 65 mL Molarity of HA = 1 M Volume of MA =35 mL Molarity of MA =…
Q: 2.52 Draw resonance structures for each of the following: ..... (c) (a) (e) NH₂ (b) OH میرا (f) (d)
A:
Q: Pre-Laboratory Question 1. Define density. Density is defin ined as a mass substance to the volume…
A: Given -> Initial volume= 15.35 ml Final volume= 22.76 ml Weight of marble = 19.060 gm
Q: Imagine that you work for Hennessy and need to separate the ethanol in cognac from the other main…
A: •Given:- Coganc=> Ethanol + water Mixture. •Here we have to seprate ethanol from water by heating…
Q: Recall that for a lone pair to be involved in resonance, it must be in a p orbital, which requires…
A: Given in following question many organic compounds
Q: Calculate the amount of heat needed to boll 84.5 g of acetic acid (HCH, CO₂), beginning from a…
A:
Q: CI OH COOCHS OH COOCH3
A:
Q: skip if you already did this otherwise downvote
A:
Q: The basicity constant kb for morphine (a weak) base is 7.4 x 107 at 25°C. What is the hydroxyl ion…
A:
Q: Calculate the work done when 50 g of Fe reacts with HCl to produce a H2 gas in a open beaker at 25…
A:
Q: 200 g solid CO2 (at -50°C) is placed in a 30 dm3 container at 25°C. Determine if the container will…
A: According to the question we have, The mass of carbon dioxide present in the container = 200 g The…
Q: V culate the amount of heat needed to melt 125. g of s gnificant digits. Also, be sure your answer…
A:
Q: ОН Na2Cr2O7/H2SO4/H2O
A:
Q: Ethane gas is held in a constant volume container at a pressure of 225 kPa, and the temperature…
A:
Q: Use the phase diagram of Substance X below to find the melting point of X when the pressure above…
A: Melting is defined as the conversion of a substance in its solid state to its liquid state. The…
Q: Anwita is on a geology feild trip and finds a rock that contains 38% of the original potassium-40,…
A: Half life of potassium-40= 1.25×10^9 Initial amount of potassium -40 = 100 gm Final amount of…
Q: In the illustration, N is color-coded as blue and O is color-coded as red. ⠀- What kind of change is…
A:
Q: 8. Tell what is wrong with each of the following electron configurations: (a) 1s² 2s²2p8 (b) 1s² 2s…
A:
Q: A reaction has a value of AH = -23.0 and AS = -235; mol When would this reaction become spontaneous?…
A: A question based on chemical thermodynamics that is to be accomplished.
Q: a. Account for this fact: Although methanol (CH3OH) (bp, 64.7 °C) has a higher molar mass than water…
A: Solving the following 2 objective questions : Hydrogen bonding - occurs in the molecules where H is…
Q: Name the three fundamental particles of an atom. DIfferentiate each.
A: It is asked about the three fundamental particles of an atom
Q: What is the molarity of Tris Base (MW = 121.1g/mol) in 10X TBE? and What is the concentration of…
A: Amount of tris base in 10X TBE is 10.8 × 10 = 108 grams of tris for 1M = 121.1g/L for 108g/L =…
Q: Consider a Newman projection of propane shown. Calculate the energy from the strain present in this…
A: An eclipsed conformation is the conformation in which two substituent of two adjacent atoms are in…
Give a clear handwritten answer with explanation
Step by step
Solved in 3 steps with 3 images
- In a survey of 1000 large corporations, 250 said that, given a choice between a job candidate who smokes and an equally qualified nonsmoker, the nonsmoker would get the job (USA Today).(a) Let p represent the proportion of all corporations preferring a nonsmoking candidate. Find a point estimate for p.(b) Find a 0.95 confidence interval for p.(c) As a news writer, how would you report the survey results regarding the proportion of corporations that hire the equally qualified nonsmoker? What is the margin of error based on a 95% confidence interval?(i) Explain the term combinatorial chemistry, and discuss its significance for the drug discovery. (ii) Describe the main techniques used for combinatorial chemistry.4-2a)please see attached
- 3. (a) If 10.0 mL of H2SO4 (sp. Gr. 1.50, containing 48.7% of combined SO3 by weight) is diluted to 400 mL, what is the normality of the solution as an acid? (b) What volume of 6.00 M H2SO4 should be added to this in order to make the resulting mixture 1.00 N as an acid? FW's : H2SO4 = 98; SO3 = 80The air in a recently used classroom 9m x 7m x 9m tested 0.12% carbon dioxide. How many cubic meters of fresh air must be admitted per minute in order that 10 minutes later it shall contain not over 0.06% carbon dioxide. Fresh air contains 0.04% carbon dioxide. Assumeimmediate mixing of fresh with stale air. (A) 14 (B) 11 (C) 15 (D) 19 (E) 17Please answer questions 4a, 4b, and 4c. The questions are provided in the attached image. Thank you.
- 1) One of Dr. G’s CHEM 102 students is working part-time at a hardware store. A customer tells this student “I need a single stud (a wooden beam) from which I can cut two (2) pieces of 2.7m studs”. The student does the math, goes behind counter, and brings a stud cut to 5m length. Select the most sensible and scientific answer to this situation. A) 2.7 × 2 when operated as a significant figure multiplication, gets you 5 and the student is right. B) Hardware stores don’t comply with correct sig. fig. rules for measurements. C) The customer must pay for 5.4m worth; but he/she should only get 5m to take home. D) The word ‘Two (2)’ mentioned here carries infinite significance, so the student is wrong. E) The word ‘Two (2)’ mentioned here is not a ‘measurement’, therefore this is an example of a situation where there is disagreement between science and day-to-day life.Q3)a) Discuss the any two applications of Beer’s law with suitable justification. (b) In an analytical laboratory a chemical compound namely Paracetamol (151.163 g/mol) is determined in a sample. A sample weighing 0.0295 g was dissolved in a solvent and diluted the solution to 1 L. The solution has λ max at 243 nm (ε=2.6×104 cm-1 mol-1 L). The solution exhibits an absorbance of 0.638 in a 2 cm cell. Calculate the percentage paracetamol in the sample. (c) Analyze any two causes of non-linearity of curve in the Beer’s law.Jack and Jill are curious about the factors that affect plant growth. They perform several experiments using pea plants (a) The leaves of the pea plants that received too much water turned yellow. (b) Jill decided that 5 hours of indirect sunlight gave optimum growth. (c) Jack gave the pea plants a controlled amount of water each day. (d) Jill thinks that too little sunlight will affect plant growth. This part please (a) Identify one variable (other than water and sunlight) that could be tested. (b) Write a hypothesis using this variable. (c) Design an experiment to test this variable.