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A: Electrons are negatively charged. Protons are positively charged. Neutrons are neutral.
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A: Mole (mol): the amount of material having 6.02214 × 1023 particles. This number is known as the…
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A: Symbols and number of protons in one atom are as below : Lithium - Li - 3 Iron - Fe - 26 Oxygen - O…
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A:
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A: A periodic table is a tabular table. It displays all the chemical elements in this table. Over time…
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- 0.47 absorbance/ 4713.6 mol/L =In scientific notation please & 0.57 abosorbance/4713.6 mol/L=What do you call to the unit amount of a substance used for measuring large quantities of very small entities such as atoms, molecules or other specified particle like counting molecules of medicine in 0.20g confusion?For Be-10, find the: a.) mase defect (in grams) b.) binding energy in kilojoules per mole. mass proton= 1.00728 amu; mass neutron= 1.00867 amu; mass Be-10 = 10.013534679 amu
- Q.1. A solution of calcium phosphate in water contain 235 gms of CP per L at 30 deg c. The density of the substance at this temperature is 1.143 gm/cc. Calculate , composition in wt%, mole%,atomic % and volume%of water. Density of water 0.999 gm/cc.Chlorine is an element with the symbol Cl. Draw and label atomic structure of chlorine indicating the number and locations of protons, neutrons and electrons in one atom of chlorine.Determine the mass in grams of 2.10 × 10²¹ atoms of copper. (The mass of one mole of copper is 63.55 g.)
- Define the mole, and calculate the molar mass of a compound from the molecular formula.When 0.5 mol of a certain ionic substance is dissolved in 1.0 kg of water, the freezing point of the resulting solution is -2.8 °C (270.35 K), How many ions does the substance give when it dissolves?The atomic number on an element tells us the number of
- An ion has 15 protons, 16 neutrons, and 18 electrons. The symbol for the ion is 31P3+. 31P3-. 31Ar3+. 34S+. 34S-.The smallest unit of an element that still retains thedistinctive behavior of that element is an ________.a. electronb. atomc. elemental particled. isotopeElemental analysis of a compound with molar mass 342.3 g/mol gives the following mass percent composition: C 42.11%, H 6.48%, O 51.41%. Find the molecular formula of the compound. Enter your answer in the space below using the following format: if the molecular formula of a compound containing elements X, Y, and Z is X2YZ3 enter your answer as X2YZ3.