The British chemist Joseph Priestley prepared oxygen in 1774 by heating mercury (II) oxide, HgO.  Mercury metal is the other product. If 6.47g oxygen is collected, how many grams of mercury metal are also produced?

Q: grams

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Q: Arsenic reacts with oxygen to form a compound AsxOy. If 2.354 g of arsenic forms 3.611 g of the…

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Q: It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the…

A: Given: Mass of Ca(NO3)2 hydrate=45.21 g Remaining mass of anhydrous compound=31.41 g

Q: When the compound (Ni (C4H7N2O2) 2) formed in the gravimetric analysis of the 0.5012 gram nickel…

A: It is given that the mass of the sample is 0.5012 gram and the mass of the compound formed is 0.1836…

Q: 2. A student burns a sample of metal in an experiment similar to this one and finds that 25.210…

A: Given: The mass of uranium metal = 25.210 g the mass of the oxide of uranium = 29.471 g A. Also, the…

Q: In the replacement reaction of magnesium nitrate with tin, how many grams of magnesium would be…

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Q: #8: A 5.00 g sample of hydrated barium chloride, Bacl, nH,0, is heated to drive off the water. After…

A: Chemical compounds are the combination of molecules. Different molecules are involved in bonding and…

Q: In the replacement reaction of magnesium nitrate with tin, how many grams of magnesium would be…

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Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 2. A compound composed of carbon and hydrogen with the formula CxHy was burned. The balanced…

A: The reaction is,  2CxHy +13O2--->8CO2 + 10 H2O Now we have to divide above equation by, 2 we get,…

Q: 10. When copper oxide reacts with hydrogen gas at high temperatures, copper metal and water vapor…

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Q: Methane gas (CH4) reacts with chlorine gas (Cl2) to produce liquid carbon tetrachloride (CCl4) and…

A: For the given reaction reactants are methane (CH4) and chlorine (Cl2). Therefore, types of atoms are…

Q: Caffeine, a stimulant found in coffee, contains 49.5%% CC, 5.15%% HH, 28.9%% NN, and 16.5%% OO by…

A: Mass percentage of constituent elements of caffeine in the molal mass of 195 g/mol are: 49.5% by…

Q: compound that will be produced on Mars during food production has a % composition of 40.002% carbon,…

A: Given that: % Carbon = 40.002% = 40.002g % H = 6.714% = 6.714g %O = 53.284% = 53.284g  Moles of C =…

Q: A mixture was found to contain 1.50g NH4CI, 0.80 g NaCI, and 1.20 g SiO2. What is the percentage of…

A: Given: Mass of NH4Cl = 1.50 g Mass of NaCl = 0.80 g Mass of SiO2 = 1.20 g

Q: How many Moles of magnesium phosphate do you have if you have 8.257 x 10^25 phosphate ions

A: Divide ion by Avogadro number to get mole

Q: If 5.99 g of ethylene (C2H4) are combusted with 6.10 g of oxygen. How many grams of CO2 are formed?…

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Q: How many grams of CaCl2 would be required to produce 1.47x1023 ions of Cl-1? digit____  (your…

A: Answer:- This question is answered by using the simple concept of calculation of moles of Cl- ion…

Q: In the replacement reaction of magnesium nitrate with tin, how many grams of tin(IV) nitrate would…

A: Stoichiometry is a section of chemistry that involves using relationships between reactants and/or…

Q: 100 grams of Na2CO3, 50 grams of C and 50 grams of N2 are mixed to obtain NaCN and CO according to…

A: The complete balanced equation= Na2CO3 +4C + N2 →2NaCN + 3CO Given in the question , Mass of Na2CO3…

Q: A chemical reaction occurs that involves combining 1 atom of zinc with 2 atoms hydrogen and 2 atoms…

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Q: Which of the following is equal to exactly 1 mole of atoms?     6.00 grams of carbon     31.93…

A: According to the mole concept , a mole is a measurement unit of any Substance in which particular…

Q: A 3.87g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.30x1022 N2O…

A: a) 1 molecule of N2O contains 2 nitrogen atoms, Hence, 5.30 ×1022 N N2O molecules will contain…

Q: A mixture of 197.1 g of P and 203.6 g of O, reacts completely to form PO, and P010: Find the masses…

A: Mass of O2 = 203.6 g * moles of O2 = Mass of O2 / Molar mass of O2 = 203.6 g / 32 (g/mol) = 6.36…

Q: Mass of Aluminum 3.08 g Density of Aluminum 2.70 g/cm3 Volume of Aluminum Foil 1.14 cm3 Thickness of…

A: Mass of Al=3.08 gDensity of Al=2.70 gcm-3Volume of Al foil=1.14 cm3Thickness of Al…

Q: Na +  H2O --->  NaOH +  H2 A mass of 6.2 moles of sodium reacts with an excess of water.  What mass…

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Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: The mass of constituents are , Na= 10.838 g, S = 7.557 g, O = 15.107 g, Molar masses are, Na=…

Q: 2. A student used a piece of aluminum that had a mass of 2.583 grams, and treated according to the…

A: The balanced equation for the given reaction is shown below:

Q: O CHEMICAL REACTIONS Combustion analysis 6.00 g of a certain Compound X, known to be made of carbon,…

A: Given :  Molar mass of compound X = 78 g/mol  Mass of compound used = 6.00 g  Mass of Carbon dioxide…

Q: What mass of hydrogen gas H2 is present if there are 5.00E23 atoms of hydrogen?

A: Given: Atoms of hydrogen are 5.00×1023 To find: Mass of hydrogen gas

Q: 2. How much (mass) carbon dioxide will be produced from the combustion of 40 grams of methane?. 3.…

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Q: If 60.2 grams of Hg combines completely with 24 grams of Br to form a compound, what is the %…

A: Given: Mass of mercury (Hg)=60.2 g Mass of Bromine (Br)=24 g The total mass of compound =(60.2 +24)…

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A: The reaction taking place is given as, => Fe3O4 (s) + CO (g) → Fe (l) + CO2 (g) Given: Mass of Fe…

Q: A lawn fertilizer is rated as 7.55% nitrogen, meaning 7.55 g of N in 100 g of fertilizer. The…

A: Given, A lawn fertilizer is rated as 7.55% nitrogen, meaning 7.55 g of N in 100 g of fertilizer. The…

Q: What element has 3.63*10^23 atoms in 6.52 g of material

A: Given, No of atoms in the element = 3.63×1023mass of element = 6.52 g

Q: Lithium nitride reacts with water to produce ammonia and lithium hydroxide according to the equation…

A: Given,ND3 = 140 mg (or) 0.14 gMolar mass of ND3 = 20.042 g/molMolar mass of D2O = 20.027 g/mol

Q: Fe2O3(s)  +  2 Al(s) ------>  Al2O3(s)   +   2 Fe(l) 159.70           26.98                101.96…

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Q: In the replacement reaction of magnesium nitrate with tin, how many grams of tin(IV) nitrate would…

A: The given balanced replacement reaction is: 2 Mg(NO3)2 + Sn  ----> Sn(NO3)4 + Mg  Given the mass…

Q: What mass of aluminum oxide can be produced from 100.0 g of aluminum given the reaction:  4Al (s) +…

A: By using mole-mole analysis in balanced reaction mass of Al2O3 can be calculated.

Q: In the replacement reaction of magnesium nitrate with tin, how many grams of tin(IV) nitrate would…

A: For the reaction., 2 Mg(NO3)2 + Sn → Sn(NO3)4 + 2 Mg Given Mass of magnesium nitrate = 89.5 mg

Q: 9.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: According to the question, we need to find out the molecular formula of the hydrocarbon X.  We have:…

Q: A compound is composed of elements C, H, and N. A 12.075-mg sample of the unknown compound was…

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Q: A combustion analysis is a technique to find the the empirical formula of compounds. In a combustion…

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Q: 5. Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when…

A: Note - Since you have posted a question with multiple sub-parts, we will solve first three subparts…

Q: A 5.325-g sample of methyl benzoate, a compound used in the manufacture of perfumes, is found to…

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Q: A Freon leak in the air conditioning system of an older car releases 28 g of CF2C12 per month. Part…

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Q: 4) Vitamin B3, also known as niacin, helps maintain the normal function of the skin, nerves, and…

A: Vitamin B3 also known as niacine.Of formula C6H5NO2.Tablets contains vitamin B3 or C6H6N2O.…

Q: 2NH3(g) + 3Cu0(s) N2(g) + 3Cu(s) + 3H20(1) a) If a sample containing 18.1 g of NH3 reacted with 90.4…

A: Limiting reactant :- Reactant which is present in lesser amount than required as per  balanced…

Q: Enter your answer in the provided box. For many years the extraction of gold-that is, the separation…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.