convert 540 nanogram to mg

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Q: Which of the following is/are a strong electrolyte in a solution? O H2O Naci O KCH3COO O CH3COOH Two…

A: Elwctrolyte:   An electrolyte is a substance that dissociates in water into ions and which can carry…

Q: Review I Constants I Periodic Table Phosgene (carbonyl chloride), COClą, is an extremely toxic gas…

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Q: 3 What is the expected major product of the following reactions? a) b) d) f) 3 HO O₂N. NEG H Br₂…

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Q: Radioactive decay is characterized by the equation In (№) = where No is the initial amount, N, is…

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A: #Q.1: Mass balance equation for Li3PO4:  In the mass balance equation, we make the total…

Q: Balance the equation Li+CO2+H2O------>LiHCO3+H2

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Q: A 3.29-g sample of gas exerts a pressure of 5.48 atm in a 553-mL container at 45°C. Determine the…

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Q: In one demonstration of this reaction, 42.00  mL of H2 are collected over water at 25°C. Atmospheric…

A: Given : V = 42.00 mL             T = 298 K          P = 748 mmHg  Tip : by using ideal gas equation…

Q: . Based only on Emily's observations from this procedure, what solvent does she know will work to…

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Q: What is the pressure in atm of a 5.00 L tank with 8.10 moles of oxygen at 39.3 °C?

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Q: Determine the temperature (in °C) of a 2.77-mol sample of He gas at 8.11 atm in a container with a…

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Q: a) b) c) CI CI II. Br ·||\ Br

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Q: A 65.0 mL solution of 0.109 M sulfurous acid (H₂SO,) is titrated with 0.109 M NaOH. The pK, values…

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Q: Predict the products of the following reaction. If no reaction will occur, use the NO REACTION…

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Q: Question 10 of 12 The gas in a 250.0 mL piston experiences a change in pressure from 1.00 atm to…

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Q: In dry atmospheric air, the four most abundant components are N₂, X = 0.808; 0₂, X = 0.1915; Ar, X =…

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Q: Explain why a high-temperature nitrous oxide-acetylene flame is sometimes required in a flame-AAS.

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Q: Use the Conservation of Mass Interactive to answer the question. Consider the reaction. MnS(s) + 2…

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Q: Hi I can't figure out what 652 pennys is converted to dollars is

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Q: Br Based on the intermediate shown below, predict the preferred regiochemistry of this reaction. H₂O…

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Q: 13.8 Would the indicated hydrogens give the same ¹H-NMR signal or different signals? H H (a) the…

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Q: For sulfate experiment, unknown was dissolved in 200mL of water. A careless student added only 100…

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Q: 3.9 How many ¹H-NMR signals would you expect to see for mis compound? MeO.

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Q: Insert the missing coefficients to completely balance each chemical equation. equation 1: S + 6HNO3…

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Q: For each of the following drugs, determine the mass of compound present for the given moles of each…

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Q: Home Work: 1. At a temperature of 300K, 30 litres of gas A kept under pressure of 1 atm and 15…

A: Given,  Temperature , T = 300 K

Q: Predict the electron pair geometry and the molecular structure of each of the following molecules or…

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Q: What fraction of iminodiacetic acid is in each of its four forms ( H3A H2A− , HA2− , A3− ) at pH…

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Q: Are the compounds presented conformational isomers, meso compounds, enantiomers, diastereomers, or…

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Q: A lotion vehicle contains 15% w/ of glycerin (sp gr 1.25), How much glycerin should be used in…

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Q: In the absence of H-bonding, what would you predict the boiling point of HF to be (in °C; provide…

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Q: How much energy is released when 25.0 mL of water cools from 83.5°C to 5.8°C?

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Q: Dalton's law states that the total pressure, Pal of a mixture of gases in a container equals the sum…

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Q: What is the hydroxide ion concentration of a solution prepared by dissolving 0.709 g of Mg(OH) 2 in…

A: Given, mass of Mg(OH)2=0.709 gVolume of water = 449 mL

Q: What is the concentration a. pH= 8.0 [H3O+] = 1 x 10-8 M b. pH = 6.50 [H3O+] = 3.2 x 10-7 M c. pH =…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: What is the molar solubility (in mol/L) of PbCl2 (Ksp = 4.37⋅10−164.37⋅10-16) in a 0.49 M NaCl…

A: Given data  The value of Ksp of PbCl2 is 4.37×10-16. The molar solubility (in mol/L) of PbCl2 (Ksp =…

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Q: What would be the major product of the following reaction sequence? P H+ CH3OH ? OH OCH 3 OH OH OH…

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Q: A student is asked to determine the value of Ka for nitrous acid by titration with sodium hydroxide.…

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Q: If you have 1 mol Xe and 1 mol F2, how many moles of XeF4 can you create in the following chemical…

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Q: Calculate the heat released/absorbed by the reaction (qrxn) between nitric acid and potassium…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.