mass of YE e

Q: if a 5.00 g ring of 14k gold has a 2.92 g of gold and the rest is copper, what is the percentage of…

A: Given that a 5.00 g of a 14k gold has a 2.92 g of gold and rest is copper. We have to find the…

Q: O µL O ML

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Q: 88. There is 60.0% oxygen by mass in a certain compound of sulfur and oxygen. Percent by mass is a…

A: Solution ) in this question the compound have sulfur and oxygen. The amount of oxygen is 60% of…

Q: How did you end up getting 6.023 x 1023? Why can't we divide 8.50 x 1015 by 32.06 (grams of S)?

A: There are different formulas to calculate the number of moles of the substance based on the given…

Q: 1srito bes oj svilsler svom Jon ob bns 1ertisgot 92ob ens eslou Dinitrogen tetroxide spontaneously…

A: Given : Dinitrogen tetroxide N2O4 i.e spontaneously decomposes into nitrogen dioxide i.e NO2.

Q: Before 1982 the U.S. Mint cast penny coins made of a copper and zinc mixture. If a 1980 penny has a…

A: The mass percentage is an important method which is used to express the concentration of a solution.…

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 13.2 g of carbon…

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Q: Calculate the mass in grams of 5.5000x10^18 molecules of dinitrogen tetroxide. Please write your…

A: Given that: Molecules of Dinitrogen tetraoxide = 5.5000×1018 molecules Mass of Dinitrogen tetraoxide…

Q: Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her…

A: Molar mass of H2O is 18.02 g/mol. Molar mass of CoCl2 is 129.84 g/mol. Mass of water removed can be…

Q: What is the mass percent of sugar in a beverage if 450.8 g of the drink contains 36.4 g of sugar?

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Q: A chemist has two different gasohol mixtures available. One contains 20% alcohol and the other 12%…

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Q: Composition C-4 is a plastic explosive having a density of 1.05 g/cm3. Calculate the mass of a brick…

A: Given,  Density (D) of C-4 plastic explosive brick = 1.05 g/cm3 Volume (V) of C-4 plastic explosive…

Q: law of conservation of mass

A: According to law of conservation of mass, in a chemical reaction the mass of reactions are always…

Q: 1-mass of crucible and lid containing magnesium oxide 2- mass of empty crucible and lid from this…

A: To determine the mass of crucible + Lid + Magnesium oxide therefore from the given data table the…

Q: A patient is to receive 44 mmol of potassium phosphate dibasic (MW 174 mg). How many mg of potassium…

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Q: how many nanomoles is a 83.9 pg sample of platinum?

A: Given :- mass of Pt = 83.9 pg  To calculate :- number of nanomoles of Pt  Number of moles =…

Q: What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is…

A: w/w % =( mass of solute(g)/mass of solution(g))*100

Q: 9.43×1019 CH4CH4 molecules Express your answer using three significant figures.   Calculate the mass…

A: We know, 1mole consists of 6.022x1023 quantity. Molar mass of CH4=16.04g/mol We will convert number…

Q: Convert to particles : 38.1 g iron (III) chloride to atomic mass units (amu)

A: Please find your solution below : Atomic mass unit is defined as 1/12 th of mass of unbound neutral…

Q: how did the mass go from 58.3g to 5.83g

A: Volume of KOH solution= 100.0 mL Molarity of KOH solution= 2.00 M Volume of Mg(NO3)2 solution= 100.0…

Q: Convert to particles: 425 g platinum to atoms

A: We're given mass of platinum (Pt) and we've to calculate number of atoms of platinum from it.  Mass…

Q: A  penny  weighs  2.507g  and  is  made  of  an alloy which  is  97.6%  zinc  and  2.4%  copper.…

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Q: 4.65x10^-2 grams of iron (iii) oxide contains how many particles? Round to sigfig

A: Solution :    The molecular mass of a substance is the one mole of that substance. One gram atomic…

Q: An antacid tablet weights 1.36g. If the percent active ingredient of calcium carbonate is 38.2%,…

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Q: Which accurately shows the Law of Conservation of Matter (Mass)? A. When 2 oxygen molecules combine…

A: Law of conservation of mass states that mass can neither be created nor be destroyed although it can…

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: a chemist has 19.50g alcohol. what is the volume of the sample, what additional information is…

A: The volume of a given liquid is defined as the amount of the space occupied by the liquid that fully…

Q: The following prompt will be used to answer the first six questions. An experiment was performed to…

A: Given :

Q: A hydrated compound with a mass of 7.00g is heated. Its mass after heating is 5.63g. What is the…

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Q: سلام الله

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Q: What is the mass of copper, g in 1.652g of copper chloride? what is the mass of chlorine g

A: Copper Chloride ( CuCl2 ) Molar mass of CuCl2 = 134.45 g/mol   1 mole CuCl2 contains ;  1 mole of…

Q: Calculate the volume of a sample of aluminum that has a mass of 43.000 g.

A: Mass of aluminum sample = 43.000 gWe need to calculate the volume of aluminum sample.

Q: The bronze medals at the Tokyo 2020 Olympics were made from Red Brass. The percent composition of…

A: Amount of component =total mass ×  % of composition

Q: a Co | Co2" (0.50 M) || Pb²+ (0.020 M) | Pb You may need to use the following data: Half-cell…

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Q: A sample is marked as containing 47.9 percent calcium carbonate by mass. How many grams of calcium…

A: Given, mass of a sample = 58.9 gThe sample contains 47.9 percent calcium carbonate by mass. The mass…

Q: What is the mass, in grams, of each of the following? I.) 2.1×10−3 mol Sb Express your answer…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.