Problem 7 ( . Magnesium reacted with hydrochloric acid to produce hydrogen in the equation: Mg(s) + 2HCI(aq) MgCl,(aq) + H,(g) The hydrogen gas was collected over water in a 5.00-L flask at 25.0°C. The total pressure in the flask was 760 torr and the pressure of water vapor at this temperature was 24 torr. What was the mass of magnesium, if the molar mass of magnesium is 24.3051 ? Enter your answer in mol the line provided with correct units and sig. figs.: Answer: _mmg

Q: Determine the number of moles of the compound and determine the number of moles of each type of atom…

A: As per our guidelines we can only solve first three sub-parts. Please resubmit the other questions…

Q: Molar mass for glutamine (C5H10N2O3) is ?

A:

Q: Glucose has the formula C6H12O6. What is the percent composition of oxygen in glucose to three…

A: The percent composition of oxygen in glucose is to be calculated.

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

A:

Q: Calculate the number of (a)nitrogen molecules (N2 molecules) (b)nitrogen atoms(N atoms) in 0.111g of…

A: Since 0.111 g of nitrogen gas will have moles = mass/molar mass molar mass of N2 = 28 g/mol Hence…

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: Which of the following are true of molar mass?  Mark ALL that apply. Group of answer choices Molar…

A: Molar mass of a compound is the defined as the mass of that compound divided by the amount of the…

Q: Calculate the mass in grams of a single water molecule

A: Water has the molecular formula of H2O. Molecular mass of water is the sum of atomic masses of…

Q: If 1.00 g of gray zinc powder reacts with 0.49 g of yellow sulfur powder, what is the mass of the…

A: Given : Mass of gray zinc powder = 1.00 g Mass of  yellow sulfur powder = 0.49 g Mass of ZnS = ?

Q: The molar mass of coniine is given as 127.23 g/mol. What is its molecular formula

A: Molar mass = 127.23 gm/mole  Compound= coniine  -> Molar mass is sum of atomic masses present in…

Q: How many grams are in 8.96x1015 molecules of CO

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Q: What is the volume of 9.30 moles of SiH,?

A: Given, Moles of SiH4 = 9.30 moles

Q: How many total atoms are in 33.3 g of copper(I) carbonate?

A: Given Mass of Cu2CO3 = 33.3 g To find Total no.of atoms in the given amount of Cu2CO3

Q: was the mass of O2 0.1691mole

A: In this question, we have to clear the doubt regarding the preceding question.

Q: What is the mass of 4.27 moles of lithium nitrate?

A: Mass = Number of moles x Molar mass Molecular formula: Ti(NO3)4 Molar mass of Ti(NO3)4 = 295.89…

Q: What is the average mass of the tin in the sample?

A: It is a given a mass spectrum of tin which has 3 peaks at 116 with 27% abundance and 118 with 58%…

Q: what is the mass in 1.27 mol NaCl?

A: The number of moles of NaCl is = 1.27 moles The mass of these moles is =?

Q: When 8.60 g of calcium are heated in air, 10.60 g of calcium nitride are formed. What is the…

A: We are given that 8.6 g of calcium is heated to produce 10.6 g of calcium nitride, the reaction can…

Q: If 15.3 grams of chloriine react with 8.6 grams of calcium to form calcium chloride, what is the…

A:

Q: A 13.0-g sample of titanium reacts with oxygen to form 21.6 g of metal oxide. What is the empirical…

A: Given that  Mass of Titanium reacted = 13.0 g  Mass of metal oxide formed = 21.6 g  Empirical…

Q: If the reaction between zinc chloride and sodium phosphat produces 25.7 g of product, then what is…

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Q: Determine the molar mass of Al2(SO.),-5H,0.

A: To determine the molar mass of

Q: The number of hydrogen atoms in a mole is Avogadro’s number, 6.02 * 1023. If one mole of the gas has…

A: This problem can be solved by knowing that one mole of substance consists of 6.022×1023 atoms.

Q: What would be the number of moles for calcium arbonate if it is  66.0 g T, also the mass.

A: Molar mass of calcium carbonate that is Caco3 is 100g/mol

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: You discover a new compound, somewhat related to the garnet types of silicate compounds. What is the…

A: The mass of one molecule of a substance is known as molecular mass. The molecular mass of the sum of…

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: What percent by mass of iron(II) phosphate is iron?

A: The molecular formula of Iron(II)phosphate is Fe3(PO4)2. Percentage by mass of any component can be…

Q: The mass in grams of 10.0 million molecules of sulfur dioxide is:

A: Number of molecules of sulfur dioxide = 10.0 million = 10×106 Moles of sulfur dioxide=Number of…

Q: For the compound Glucose ( C6H12O6 ), What is the percent Oxygen in glucose?

A: We need to find the amount of oxygen present in glucose. We will calculate the given problem by…

Q: According to the chemical formula and atomic masses in the periodic table, what is the molar mass of…

A: The mass of C = 12.0107g/mol The mass of H = 1.00784 g/mol

Q: A 100.00 g sample of the compound XCl3 is decomposed to produce 90.77 g of the element chlorine.…

A: The reaction taking place will be  2 XCl3 -----> X2 + 3 Cl2  Hence moles of Cl2 formed / moles of…

Q: Chlorophyll has the chemical formula C55H72MgN4O5. Determine the molar mass of chlorophyll

A: Molecular Formula of Chlorophyll = C55H72MgN4O5

Q: What is the mass of 1.761 × 10^8 mol S? Answer in units of g.

A:

Q: what is the mass of 2.0x106 molecules of dimethylnitrosamine?

A:

Q: What is the mass of 3.5 x 10^-3 molecules of copper (II) carbonate? Use correct significant figures…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many grams are in 0.00156 molecules of water?

A:

Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. What quantity in molecules of C₆H₈O₆ does a…

A: To find molecules of vitamin C, first convert mass in grams then divide it by molar mass to get its…

Q: How many moles is 24.5 grams of U?

A: The number of moles present in a given amount of element can be calculated by dividing the given…

Q: What is the calculated mass of 800. atoms of iron (Fe)?

A: Given -> Number of atoms of Fe = 800 atoms

Q: Q 6. Calculate the molar mass of the following substances. (a) Ethyne, C2H2 (b) Sulphur molecule, S8

A: Molar mass of the substance can be define as the mass of one mole of a substance.

Q: What is the mass ( in kilograms) of the average molecule of carbon dioxide?

A:

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.