The percentage composition by mass (to the nearest 0.1) of C in sugar, C8H10O7, is ______________.

Q: If the mass of Mg is 0.19g and the product mass is 0.74g. What is the moles of Mg in the product

A: In this question, we have to calculate the number of moles of Mg produced. 1 mole of any substance…

Q: Compound Weight (in grams) Molecular Weight Barium hydroxide 10 171.34 g/mol Sodium chloride 25…

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Q: What mass of AgI (234.8 g/mol) can be produced from a 0.8093 g sample that is 47.6% MgI2 (278.11…

A: 0.8093 g of sample has 47.6 % MgI2 . Here, we have to calculate the mass of AgI that can be produced…

Q: what mass of cerrusite PbCO3 (MM= 267.21g/mol) contains 110g of O

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Q: Calculate each of the following quantities: Mass in kg of 4.6 x 10 21 molecules of NO2 b. Amount in…

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Q: Cryolite, Na3AlF6(s),Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using…

A: Al2O3+ NaOH+ HF --> Na3AlF6+ H2O ** Balance Equation :- 1Al2O3+ 6NaOH+ 12HF --> 2Na3AlF6+…

Q: What is the mass in grams of 0.699 moles of glucose, C6H12O6 ? A. 0.00388 g B. 67.1 g C. 126 g D.…

A: Mole: It is defined as the unit for measurement of the amount of substance in the International…

Q: The composition by weight of three iron sulfur compounds, A, B, and C, is shown below. What is the…

A:

Q: A- Balance The Equation NO2(g) + H2O(1) – HNO3(1) + NO(g) B- What is formula - -- -- mass of K2Cr207…

A: (A) We balanced a chemical reaction, due to stisfy the law of conservation of mass, which states…

Q: Mass of empty beaker + watch glass: 154.00g Mass of beaker and hydrate (before heating): 155.58g…

A: Hydrated salts are those which contain water of hydration associated with it. When the water of…

Q: Lead is found in Earth's crust as several different lead ores. Sup- pose a certain rock is 38.0% PbS…

A: Given that:                       Rock consists of:                                          Galena…

Q: The moles of Glucose (C6H12O6) in 18 grams of Sucrose is 342 0.1 0.01 34.2

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Q: An Alka-Seltzer tablet contains exactly 75.0 mg of citric acid, H3 C6H5O7, plus some sodium…

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Q: An organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a 150. mg…

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Q: What's the percentage by mass of Cl in MgCl2 if it  is 24.6% Mg by mass?

A: Intrdouction : %age by mass of Mg = 24.6%

Q: A- Balance The Equation NO2(g) + H2O(I) -- HNO3(1) + NO(g) B- What is formula -- --- mass of K2Cr207…

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

Q: Phosporic acid (H3PO4) is a key ingredient in soft drinks that gives it a sharper flavor. One way to…

A: Given chemical reaction is  Ca5(PO4)3F + 5H2SO4    ==>    3H3PO4 + 5CaSO4  +  HF also given 24.5…

Q: A 10.00 gram mixture of NaHCO3 and N22CO3 was heated and yielded 0.0357 moles of H2O and 0.1091…

A:

Q: A- Balance The Equation NO2(g) + H2O(1) ------- HNO3(1) + NO(g) B- What is formula mass of K2CR2O7…

A: Balancing chemical equation, Molar mass and Empirical formula.

Q: 7. C,H16 + 02 -- CO2 + H20 8. H2SICI, + H20 --→ H&S¡404 + HCI

A: Balanced the chemical equation--

Q: To help farmers and gardeners, commercial fertilizers have a big three-number "NPK" label on the bag…

A: Assuming total 100 g of the sample. The element N is present in 2 compound only which are Ca(NO3)2…

Q: How many hydrogen atoms are in the compound (NH4)2CO3? Alex has a big black tattoo of a teddy bear…

A: #Q.1: The given chemical formula is (NH4)2CO3.

Q: Consider the balanced chemical reaction below. How many grams of CaSo, can be produced from 1.00 kg…

A:

Q: 51 Caffeine Caffeine, found in coffee, tea, chocolate, cola beverages is a highly popular stimulant…

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

Q: . How many moles of Al(C 2 H 3 O 2 ) 3 contain 19mol O ? 6. Determine the % composition by mass of…

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Q: The coefficients in a balanced chemical reaction are commonly used in stoichiometry to: provide mass…

A: Answer

Q: 2. Alex has a big black tattoo of a teddy bear on their back. Iron (II, III) oxide was used as the…

A: Given:  The chemical formula is :  Fe3O4 sol a)   molar mass  =  3 Fe + 4 O =  (3 x 55.84)  +  (4 x…

Q: Calculate the % composition (by mass) of carbon in. C2F3C!3? Report answer to two decimal places and…

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Q: The composition by weight of three iron sulfur compounds, A, B, and C, is shown below. What is the…

A:

Q: Lead is found in Earth’s crust as several different lead ores. Suppose a certain rock is 38.0% PbS…

A:

Q: Find the percentage by mass of oxygen (O) in N2O4 if it is 30.4% nitrogen (N) by mass.

A: We have given that Percent by mass of nitrogen in N2O4 = 30.4% Mass of N2O4 = 92.011 g/mole Percent…

Q: Toluene has a density of  867 kg/m³ and its molar mass is 92.14 g/mol. If 100 mL of Toluene is…

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Q: 2. How many grams of chocolate are there in 84.0 X 102 molecules of chocolate, C,H,N,0,?…

A: To determine the grams of chocolate in 84.0×1022 molecules of chocolate C7H8N4O2

Q: Calculate the moles and mass of acetylsalicylic acid in each tablet (molar mass = 180.16 g/mol).

A:

Q: Imagine you discover a substance in a forest mushroom and find through experimentation that it…

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Q: How could you calculate the Avogadro’s number [NA] for an organic compound if you know the following…

A: Avogadro's number [NA] refers to the number of constituent particle such as atoms, molecules, ions…

Q: Calculate mass in grams 3 sig figs of 0.0579 moles of aluminum sulfate

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Q: Number of atoms of C in 10 moles of C4H10 are:     240.88x10^23 24.09x10^23 4.15x10^23…

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Q: What is the sum of all coefficients when the following equation is balanced, using the smallest…

A: Given the unbalanced equation: SiCl4 + H2O → H4SiO4 + HCl We have to find the sum of all…

Q: buprofen is an anti-inflammatory with the formula C13H18O2 A. What is the molar mass of ibuprofen?…

A: The answer can be calculated by the simple unitary method.

Q: How many grams of hydrogen gas are formed by the reaction of 3.457 g of aluminum with nitric acid?…

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Q: Which chemical equation follows the of conservation of mass? A. NaOH + H2SO4 ------>Na2SO4 + 2H2O B.…

A: Sodium hydroxide reacts with sulfuric acid to form sodium sulfate and water. The equation for the…

Q: For many years, the extraction of gold - that is, the separation of gold from other materials -…

A: Given,

Q: A vitamin syrup for infants contains 27.44 mg of zinc sulfate monohydrate (ZnSO4.H2O) and 100.00 mg…

A: 1 mole = 6.022×1023 [ Avogadro's number ] The mass of one mole of molecules of a substance is called…

Q: The mineral iron pyrite (FeS2), typically, has a mass percentage of what is known as fool’s gold of…

A: Each FeS2 has 2 S atoms.  Each BaSO4(s) has 1 S atom. Hence each mol FeS2 will give 2 mol BaSO4(s)…

Q: To help farmers and gardeners, commercial fertilizers have a big three-number "NPK" label on the bag…

A: Given data: The 100% mass of a fertilizer contains, Ammonium phosphate = 37% Urea = 40% Potassium…

Q: How many moles are in 8.9 x 10^26 molecules of C6H12O6? Express in decimal

A: 1 mole  of any atom / molecule consists avogadro number. Avogadra number NA = 6.022× 10 23

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.