Question 13 What is the mass in grams of 5.90 mol C3H18? O 19.3 g O 99.1 g O 389.0 g O 672.6 g

Q: Question 2 A compound A; containing only carbon, hydrogen and oxygen is found to be 78.30% C, 13.04%…

A: Compound A; containing only carbon hydrogen and oxygen% of C = 78.30 % = 78.30 g% of H = 13.04 % =…

Q: How many H20 molecules are there in 3 moles of H20 sample? O 6.02 x 1023 molecules O 2x 6.02 x 1023…

A: Given: Moles of water, H2O = 3 mol.

Q: How many grams of H 2 are needed if we want to make 95.44 grams of NH 3 by the reaction N2 + 3H2 2…

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Q: What is the mass in grams of 0.119 moles NaAl(SO4)2∙12H2O? Group of answer choices 50.7 g 43.1 g…

A: Mole is defined as the ratio of the mass of a compound in grams divided by the molecular mass of the…

Q: Calculate the mass of sodium in 21.5 g of NaCIO3. O 32.9 g O 4.65 g O 0.202 g O 0.465 g

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Q: Question 29 How many grams of pure cobalt chloride are in 2.03 g of cobalt chloride dihydrate, CoCl₂…

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Q: QUESTION 14 How many moles of benzene C6H6 are present in 390 grams of benzene. 5 mol 4.3 mol 6.7…

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Q: What is the percent by mass of lithium in Li,O?

A: Percent by mass = (mass of Li/mass of Li2O) × 100%

Q: Mass percent of an element in a compound represents _________________________. Answers: the…

A: Mass percent of an element in a compound represents _________________________ Answer of the question…

Q: QUESTION 10 Which of the following is true for the H-X-H bond angel for the following molecules…

A: To solve this problem we have to know about bond angle of given compound .

Q: Question 37 How many ozone (O3) molecules are present in 24.0 grams O3? A) 3.01 x 1023 molecules B)…

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Q: Question - 4 A sample was analyzed and found to contain 52.14 % carbon , 13.13% hydrogen, and 43.73…

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Q: The approximate mass of one mole of ammonium carbonate (NH4)2CO3 is O A. 96.0 g O B. 42.0 g OC.72.0…

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Q: How many atoms of oxygen are contained in 47.6 g of Al 2(CO 3) 3? O 3.68 x 1023 o atoms 1.10 x 1024…

A: Note : As per our guidelines , we are supposed to answer only first question ( question 25) ,Kindly…

Q: How many moles of oxygen are present in 1.50 g of CaCO3? A 0.0300 mol B) 0.0599 mol 0.0150 mol…

A: One mole of CaCO3 means [40+12+3(16)]g of CaCO3 i.e. 100g of CaCO3.  Thus, molar mass of CaCO3 =…

Q: Question 2 A compound commonly used in topical medicines has a molecular weight of 152.23 amu and a…

A: Here we are required to find the empirical formula

Q: 3.00 x 1023 atoms

A: Mass of Ca = 20.0 g Molar mass(MM) of Ca = 40.08 g Moles of Ca = Mass/MM     = 20.0/40.08   = 0.500…

Q: Question 2 Compound A, containing only carbon, hydrogen and oxygen, is found to be 48.6% C, 8.16% H…

A: Given, Percent by mass of each element:C = 48.6 % , H = 8.16 % and O = 43.2 %The molar mass of…

Q: Question 14 How many molecules are present in 0.300 mol of HI? O 2.43 x 1024 molecules O 1.81 x 1023…

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Q: How many moles are in 35.5 grams of NaNO3? 3017.5 mols 0.418 mols O 5.30 mols O 2.4 mols

A: Solution: We know that molar mass of NaNO3 is 84.9947 g/mol.  So, we can also that 1 mol of NaNO3…

Q: How many grams of 0.057 mole of Sn 3.44 g O 6.78 g 67.6 g 118.7 g

A: We know that, number of moles can be expressed as,                                         or, mass…

Q: Detemine if the following chemical equation is balanced Ca(NO3)2 + 2 NaCI -CaCl2 + 2 NaNOS O…

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Q: Question attached

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: QUESTION 22 How many grams of Sodium are in 0.250 mole of Sodium? B) 5.80 g A) 23.0 g C) 11.0 g D)…

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Q: For the following reaction, if I start this reaction with 305.5 g potassium bisulfite and an excess…

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Q: atoms

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Q: QUESTION 12 The highly toxic "antifreeze" has the formula C2H602. In your chemistry assignment you…

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Q: Calculate the number of grams in 4.9x10-2 moles of Vitamin C, C6H8O6.     2.8x10-4 g     8.6…

A: Molar mass = mass of 1 mole

Q: D Question 3 How many grams are there in O.0111 moles of FeF3? O 0.00189 g O 10.6 g 1.25 g O 24.0g

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Q: QUESTION 28 How many variables that indicate the state of gas? 04 6 02 QUESTION 29 Find the shape…

A: As per the guidelines , we are supposed to answer first question , to solve remaining questions…

Q: Question 2 What is the percent composition by mass of oxygen in the compound aluminum sulfate? O…

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Q: The molar mass of water is 18.0 g/mol. How many hydrogen and oxygen atoms are present in 10.0 g of…

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Q: Question 11 What is the molar mass of (NH4)2SO4? O 132.02 g/mol O 114.11g/mol O 118.01 g/mol O…

A: Molar mass of the compound can be calculated by summing up masses of all the elements .

Q: A 100.0 g sample of a compound is composed of 26.5 g of potassium, 35.4 g of chromium and 38.1 g…

A: Please find the answer below:

Q: Serotonin is a neurotransmitter that contributes to feelings of well-being and happiness. The…

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Q: O 3x 6.02 x 1023, QUESTION 5 How many H20 molecules are there in 3 moles of H20 sample? 6.02 x 1023…

A: Given that, Moles of H2O=3 moles then,

Q: How many molecules are in 29.3 g of beryllium hydroxide (Be(OH)2)? O 2.1 × 10¬21 molecules O 4.1 ×…

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Q: Question 15 Calculate the molar mass of a compound if 0.457 mole of it has a mass of 430.0 g. 0.941…

A: A question based on mole concept. Number of moles and mass of a substance are given that are to be…

Q: How many grams of Na 3PO 4 are needed to react with 1.962 moles of Ba(NO 3) 2 in the reaction 2…

A: Recall the given reaction,                             2 Na3PO4  +  3 BaNO32  →  Ba3PO42  +  6…

Q: How many molecules are present in 1/4 liter of water?   Question 32 options:   8.35 x 1024…

A: We have to calculate the number of molecules in 1/4 Liters of water.

Q: A compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76%…

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Q: Question 3 The recommended daily intake of Vitamin C (ascorbic acid ) in adults is 90 mg. Given the…

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Q: How many moles of NaHCO3 are in a 2.00 g sample ? A. 0.0238 OB. 0.0119 OC. 0.0200 OD. 2.00

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Q: Question 3 How many atoms are in 157 grams of H2? 4.6 Question 4 How many particles are there in…

A: Since you have asked multiple questions for you, we are solving first question for you. For…

Q: Multistep Problems: Avogadro's Number and Molar Mass 10. How many atoms of tin (Sn) are in 1.84 g of…

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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.