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answer the question
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hi i have attached a pdf of questions. please answer it, i just need answers not explanation.
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Hi, there are 10 questions. This is a volume measurements uncertainty lab quiz .I need their answer as soon as possible. Thankyou very much.
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A soap bubble of 8 cm diameter containing air at 27 degree centigrade and 760 mm hg pressure is expanded until it's radius is 8 cm, the temperature and pressure remaining constant. How many ml of air
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1. Escriba el símbolo del isótopo de la forma X-A para cada isótopo a. El isótopo de plata con 60 neutrones b. El isótopo de plata con 62 neutrones c. El isótopo de uranio con 146 neut
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Given that 1 vt is equal to 0.0000575 miles, how many m2 are there in 26.1 vt2?(NOTE: An vt and an vt2 are fictitious units of length and area, respectively. The other units that are mentioned in this
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Given that 1 vt is equal to 0.0000575 miles, how many m2 are there in 26.1 vt2? (NOTE: An vt and an vt2 are fictitious units of length and area, respectively. The other units that are mentioned in thi
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What is the molarity of an unknown NaOH solution if 50 mL of the solution is titrated to a phenolphthalein endpoint with 62.5 mL of 0.102 M HCl? This question requires the sudent to write a balanced e
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1. A chemist measured the pressure of a gas in atmospheres at different temperatures in °C: Temp (°C) -136 -25 0 25 100 273 Pressure (atm) 0.50 0.91 1.00 1.09 1
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An electron is accelerated in a cathode ray tube and moves at a velocity of 3.0*10^6 km/hour. Calculate the kinetic energy of the electron. You can find the mass of an electron on the Table of Constan
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In this assignment, you will complete the worksheet below and upload your answers for a grade. You can answer directly on the worksheet or on a separate paper with items properly numbered.
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I need help from question 2 d) to question 10 f)
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What mass of oxygen is required to oxidise 10.0g of ammonia to NO? 4NH3 + 5O2 ️ 4NO +6H2O
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Complete the following questions and Must show work on everything
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Hey can anyone help me with this?
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Calculate the potential (emf) of a working galvanic cell that is based on these two half cells and standard potentials (both written as reduction reactions) in an aqueous basic solution. Cr3+(aq) →
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can you please help me
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Need help with 2a and 2b please!
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Anyone who can help rn. Org Chemistry assignment ?
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Calculate the volume of Koh dispensed Calculate the number of moles of Koh
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2(a) Aluminium chloride exists in the form of dimer at room temperature. (i) Draw the Lewis structure of aluminium chloride when it is heated to 1000 °C. (2 marks) (ii) Mr Andrew plans to replace the
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naturally occurring argon consists of three isotopes, 36Ar, 38Ar, 40Ar, in the ratio of 4.86: 1: 1423 i) calculate percentage abundance of each isotope ii) calculate the relative atomic mass of argon
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Suppose 2.23 g of barium nitrate is dissolved in 250 of a 50.0 m M aqueous solution of sodium chromate. Calculate the final molarity of barium cation in the solution. You can assume the volume of the
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examples of a branched hydrocarbon
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The pH (at 37°C, where KW = 2.4 × 10−14) of a certain metal hydroxide of formula M(OH)3 is 11.10. What is Ksp for the metal hydroxide at 37°C?
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Sodium-24 has a half-life of 14.8 hours. How much of a 819.3 mg sodium-24 sample will remain after 3.7 days?
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Chemistry
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Approximately (3.230x10^0) g of lead(II) acetate, Pb(CH3COO)2, is weighed out and placed in a (2.85x10^2) mL solution of 0.150-mol/L sodium hydroxide. Calculate the mass of precipitate produced in thi
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the questions are in the file
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name the following molecule
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draw a curve similar to that shown in figure for a series of solutions of nh3. plot [oh−] on the vertical axis and the total concentration of nh3 (both ionized and nonionized nh3 molecules) on the hor
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Help please!
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Consider the following concentration cell. M(s) | M+(satd MX) || M+(0.100 M)| M(s) Ecell = 0.417 V At the anode, a metal electrode (M) is placed in a saturated aqueous solution containing ions of
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Can someone please help me with these chemistry questions
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An electrolytic cell containing one half-cell consisting of a nickel electrode in a 1 mol/L nickel (III) chloride solution and the other half-cell consisting of a cadmium electrode in a 1 mol/L cadmiu
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Please help me.I am unsure how to do the question. Thank you in advance!
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All the question from the attached files
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this picture
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How many formula units (aka "molecules") are contained in 0.812 mole of Pb(NO3)2?
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In the human body, C-12 has an abundance of 98%, and C-13 has an abundance of 2%. What would you expect to be true about the average atomic mass?
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A flask contains 0.190 mol of liquid bromine,Br2, determine the number of bromine molecules present in the flask.
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A gas occupies 1.57 L at 1.00 atm. What will be the volume of this gas if the pressure becomes 3.00 atm?
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1. Which substance is a liquid at 25°C? 2. Which substance is a gas at 25°C? 3. Which three substances contain simple molecules?
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explain why 4-nitrobromobenzene 21 predominates in the product mixture over the 2-nitrobromobenzene 22
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C=5/9 (F−32) The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must b
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Analyze the assigned neurological disorder and prepare a report in a two- to three-page document. Evaluate the causes of stroke. Discuss the differences between transient ischemic attack and cerebrova
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Consider the following reaction: H2O(g) + CO(g) H2(g) + CO2(g) The equilibrium constant Kp for this reaction is 0.55 at 1023 K. (3 marks) (2 marks) (2 marks) (i) In a reaction vessel, water vapour and
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need help pls
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I would like if I can get help with this assignmen.
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How many grams of Nitric Acid (HNO3) will be produced if 414.0 g of NO2 reacts completely with 45.0 g water at STP?
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