Question 1: A fictitious element has two isotopes and a molar mass of 82.43 g/mol. The first isotope has an atomic mass of 80.98 u and 22.65% of this element's atoms are of the first isotope. What is the atomic mass (in u) of the second isotope?

Q: When 4.142 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 12.12 grams…

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Q: How many moles of N2 are needed to react with 0.450 mol of lithium?

A: The reaction is given below.

Q: a) Patients who have a zinc deficiency can take tablets consisting of a hydrated zinc sulfate,…

A: #(a): Mass of hydrated zinc sulfate tablet, ZnSO4.XH2O = 5.073 g  Mass of anhydrous sulfate,…

Q: A nuclear detector finds 80 atoms of oxygen-16 (15.999 amu), 60 atoms of oxygen-14 (13.999 amu), and…

A: A nuclear detector finds Isotope Atomic mass No of atoms detected oxygen-16  15.999 amu 80…

Q: Finish balancing the chemical equation below, that describes the combustion reaction that occurs…

A: Combustion is defined as an exothermic reaction in which a fuel is burnt in presence of atmospheric…

Q: As of 2018, ~95% of hydrogen is produced from fossil fuels. One of the most important reactions of…

A: Consider the given reaction is as follows; CH4 g   +   H2Og    →    COg   +    3 H2 g Given…

Q: A 4.61 g sample of H2 reacts with 13.01 g of N2 to form ammonia (NH3). If ammonia is the only…

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Q: The Haber-Bosch process involves the combination of nitrogen and hydrogen at high temperatures in…

A: Production of ammonia depends on limiting reagent. Limiting reagent is completely used during the…

Q: Find the mass of NO that could be produced if 100. g of ammonia (NH3) reacted with 100. g of oxygen…

A: The given reaction is shown below: 4NH3 (g) + 5 O2 (g) ------> 4 NO (g) + 6H2O (g)   Given: 100.…

Q: The combustion of propane may be described by the chemical equation C3H, (g) +50₂ (g 3 CO₂(g) +…

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Q: help please answer in text form with proper workings and explanation for each and every part and…

A: Step 1:Given that,Total mass of product when butanol (C4H10O) reacted = 64.5 g  Step 2:The balanced…

Q: Balance the chemical equation for the reaction of BaCl, and Na, SO.. chemical equation: BaCl, (aq) +…

A: First question you have answered is correct. The given reaction is a double replacement reaction.

Q: The combustion of ethane (C, H,) produces carbon dioxide and steam. 2C,H,(g) + 70, (g) – 4C0,(g) +…

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Q: How many grams of Nitrogen would be produced from 18.75 g Al(NO3)3?

A: The mass of Al(NO3)3 is 18.75 and its molar mass is 213 g/mol. we have to calculate the mass of…

Q: If 75.0L of water vapor is produced, what mass of propane was consumed in the reaction

A: The volume of water vapor produced = 75.0 L 1 mole H2O means 22.4 L ? moles H2O means 75.0 L Number…

Q: A 13.5 g sample of potassium chlorate was decomposed according to the following unbalanced equation:…

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Q: Consider the following balanced chemical equation: 3H2 + N2 → 2NH3 If 7.05 grams of H2 were mixed…

A: Given balanced equation: 3H2 + N2 → 2NH3 We have to find how many grams of NH3 would form if 7.05…

Q: oefficients will balance the reaction in the pictured: __Al + ___HCI ---> ___AlCl3 + ___

A: Balancing the equations occurs in such a way that there is an equal number of atoms on both sides.…

Q: Given 2.6 moles of Sr, how many grams of 0, would be needed for the reaction? (molar mass of O,D…

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Q: A student decided to prepare Fe2S3 by reacting FeCl3 with H2S.  The other product was HCl. The…

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Q: The synthesis of maleic (C₂H₂O3) can be accom benzene (CH) and ox following chemical reac 2 C6H(1) +…

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Q: QUESTION 2 Consider the reaction X + Y Z where 1 gram of X was made to react with 2 grams of Y.…

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Q: Ammonium perchlorate (NH,Clo,) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

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Q: Question 5

A: Given,Chalcopyrite is CuFeS2. In 1 mole of chalcopyrite, there is 1 mole of Cu.The percentage of…

Q: If 4.0 mol of NO and 4.0 mol of O2 are combined, how many moles of NO2 are produced?  2NO + O2 ->…

A: Given: Number of moles of NO = 4.0 mol Number of moles of oxygen = 4.0 mol To find: The number of…

Q: how many grams of water form?  (Give both the calculator answer and the significant figure answer).

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Q: Aluminum metal reacts with oxygen to produce aluminum oxide: Balanced aluminum.jpg If a student…

A: Chemical equation:                          4Al(s) + 3O2(g) → 2Al2O3(s) molar mass of Al= 26.98…

Q: 2CH3OH+3O2⟶2CO2+4H2O   Given the equation above, what is the mass of oxygen (O2) that is required…

A: The reaction given is  2 CH3OH + 3 O2 ⟶ 2 CO2 + 4 H2O

Q: When methane is combusted, how many moles of oxygen gas are needed to react to form 1.06 moles of…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: A 85.6 g sample of Fe304 reacts with 18.2 g of CO to form FeO and CO2. FezO4(s) + CO(g) 3FEO(s) +…

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Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

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

Q: Olivia is attempting to synthesize some potassium ferrioxalate and calculates that her theoretical…

A: percent yield is defined as  % yield = experimental yield X 100 / theoretical yield since…

Q: 2H2 + O2 --> 2H2O If you have 50 grams of hydrogen, how many moles of water could be produced?

A: Reaction:-  2H2 + O2 --------> 2H2O Mass of Hydrogen gas (H2)  = 50 g  Molar mass of Hydrogen(H2)…

Q: 27.22 g of X combines with 84.10 g of Y to form XY. If the molar mass of X is 33.42 g mol–1, what is…

A: The mass of X is 27.22 g.The mass of Y is 84.10 g.The molar mass of X is 33.42 g.mol-1.The formula…

Q: if 1.0 g of PtCl4 is reacted with 5.0 g of Li(CH3), what is the quantity of the two products formed…

A: Given information: mass of PtCl4 = 1.0 g molar mass of PtCl4 = 337  mass of LiCH3 = 5.0 g molar mass…

Q: 3) Suppose you add 125g of C and 125g of Cl; to an excess amount of TiO2, how much TiCla can be…

A: Answer :-  (3) Mass (Practical yield) of TiCl4 = 123.4 g…

Q: f 1.50 moles of nitrogen gas reacts with an excess of hydrogen gas, what mass of ammonia would be…

A: The question deals with stoichiometry. It is used to determine the amount of reactants and products.…

Q: When methane is combusted, how many moles of oxygen gas are needed to react to form 7.90 moles of…

A: Given :-  CH4 + 2O2 →CO2 + 2H2O  number of moles of H2O produced = 7.90 mol  To calculate :-  number…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.