Which one of the following statements about the compound C3H4 is CORRECT? Oa. Five molecules of C3H4 has 20 moles of hydrogen atoms O b. One mole of C3H4 contains Avogadro's number of atoms O c. The mass of carbon in a sample of C3H4 with four molecules is 7.977 x10-26 kg O d. These statements are all wrong O e. The mass of one molecule of C3H4 is 46.06 g

Q: )2.709 x 10 to the 23rd Ca+2

A: Given,  0.45 moles CaCO3 1 mole CaCO3 contains 1 mole Ca2+ ions.  0.45 moles CaCO3 contains = 0.45…

Q: How many molecules are in each sample? a. 6.5 g H,0 b. 389 g CBr, c. 22.1 g O, d. 19.3 gC,H10

A: a) 2.5g H2O = Mass of H2O = 6.5g Molar mass of H2O = 18g/mol The number of molecules can be…

Q: 1. A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: We can calculate the moles of any substance from the following formula : Moles of substance = mass…

Q: The empirical formula of styrene is CH; its molar mass is 104.1 g/mol. What is the molecular formula…

A: Empirical formula is the smallest whole number ratio of elements in a compound.Molecular formula…

Q: 11. How many grams are in 1.44 moles of water? O18.02 g O36 g O 25.9 g O 5 g 12. How many moles are…

A:

Q: How many carbon atoms are in a pure diamond (all carbon) with a mass of 52.00 mg? A. 4.330 x 103 O…

A: Given: Mass of carbon = 52.00 mg = 52×10-3 g (since 1 g = 103 mg) Atomic mass of carbon = 12 g/mol

Q: Use the References to The formula for sulfur dioxide is SO2. a. How many molecules are in 2.70 grams…

A: a. Here, we have to find the number of sulfur dioxide molecules present in 2.70 g of SO2. b. Here,…

Q: 2. A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: a. Given that: Mass of sugar = 9.00 g. Molar mass of C12H22O11 = 12×12 + 22×1 + 11×16Molar mass of…

Q: Which of the following samples of gases contains the greatest number of atoms? (Relative atomic…

A: 4th option is correct that is 13.0 g of C2H6

Q: How many hydrogen atoms are in the molecule below?

A:

Q: 5. How many atoms of hydrogen are present in 2.69 moles of water? 6. Calculate the mass of nitrogen…

A:

Q: Determine the number of atoms of O in 24.1 moles of Al2(SO,)3-

A:

Q: How many grams of O are in a sample of AgNO3 with 4.0 x 1024 atoms of Ag? [grams oxygen Hint: Since…

A:

Q: How many ions of S are present in 5 moles of Al2S3? [x 10¹ Sions X Make sure your answer is in…

A: The question is based on mole concept. we have to calculate number of ions present in given quantity…

Q: Saved Match each substance with the correct classification. Br2 1 v SF6 1. Element CH3 CH2 CH2 CH2…

A: Element: The element is formed by only one type of atom. Molecular compound: Two or more elements…

Q: 6. How many oxygen atoms are in 225 g oxygen gas? a. 4.23 x 104 C. 8.47 x 10:+ b. 6.84 x 10²4 d.…

A: The Given amount of oxygen gas O2 = 225 grams        the molar mass of O2 = 32 g/mol To calculate…

Q: How many atoms are in 1 mole of calcium?

A: 1 mol contains atom equal to Avagadro number.

Q: What mass of Al contains the same mumber of atoms as 3,.0g Pb a 23 g 6.0.014 g c 3.0 g d.0.39 g e…

A: Given : Mass of Pb = 3.0 g Since number of atoms of any element is given by, => Number of atoms =…

Q: Calculate the mass of 500. atoms of  fluorine (F). Mass =______  g

A: One mole of a substance is equal to 6.023 x 1023 units of that substance  (such as atoms, ions or…

Q: 4. Potassium permanganate Туре of Atoms Amount of Total each atom amount Mass of each Formula Total…

A: Given :  To find the type of atoms and total molar mass for the following compounds. 1. KMnO4  2.…

Q: Use the Referen a. How many ATOMS of carbon are present in 1.17 grams of carbon monoxide? atoms of…

A:

Q: 1. Calculate the mass of each sample. a. 1.05 x 10 26 atoms of neon, Ne(g) b. 8.72 x 1021 molecules…

A:

Q: f. d. e. O₂N NH, O 1. H₂, Pt 2. NaNO₂, HCI 3. CuCN 1. HNO3, H₂SO4 2. H₂, Pt 3. NaNO2, HCI 4. CH3OH,…

A: According to the Bartleby guidelines for the sub multipart questions, we can solve only first three.…

Q: There are 1.8 x 1024 atoms of chlorine in a sample of magnesium chlorate, Mg(CIO3)2. What is mass of…

A:

Q: 1. 2 moles of Ar atoms contain how many atoms?           A.   1        B.   1.204 x 1024…

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

Q: . What is the mass, in grams, of each of the following? a. 2.3*10^-3 mol Sb b. 3.59*10^-2 mol Ba…

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

Q: sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: We have given that  A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g  calculate the moles and…

Q: This number of particles is called Avogadro's number (NA) and has a value of... 6.02 x 10 – 23 0.602…

A:

Q: In N2O , 28 g N combines with 16  g O. Determine grams of O and N in NO2.

A: Given :-  N2O is formed by combination of 28 g N and 16 g O   To calculate :-  mass of N and O in…

Q: Question 7 of 14 How many atoms are in 2.1 mol of carbon?

A:

Q: What number of atoms of nitrogen are present in 6.19 g of each a. glycine: C2 H; O2N atoms N

A: Moles of any compound or molecule is found by the formula mass of molecule divided by its molar mass…

Q: A sample of ammonia has a mass of 96.3 g. How many molecules are in this sample? A. 5.65 molecules…

A: One mole of any substance consists of 6.022×1023 molecules. The number of moles of a substance can…

Q: 22. What is the mass in grams of each of the following? a. 3.011 × 10²⁹ atoms F b. 1.50 x 1023 atoms…

A:

Q: convert 1.89 • 1024 atoms of carbon to moles of carbon

A: Calculation of moles of Carbon :

Q: The carat is the unit of mass used by jewelers, and it is exactly 200 mg. How many carbon atoms are…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: The average atomic mass of carbon is 12.011 amu. Assuming you were able to pick up only one carbon…

A: Given that, the average mass of carbon is 12.011 a.m.u. The given mass of any of the carbon isotopes…

Q: How many atoms of oxygen are in 3.52 moles of calcium nitrate?   Select one: a. 8.48 x 10^24 atoms O…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: How many grams of magnesium are required to produce 3.000 kg of Si? (At mass: Mg=24.31; Si=28.09)…

A:

Q: G. H. Cl₂ 1. BH3-THF 2. NaOH, H₂O₂

A: Alkene on treatment with chlorine forms dichloroalkane as addition product.

Q: How many moles of He are 221,000 He atoms?

A:

Q: An element's percentage of the total mass in a compound containing the element. A law stating that…

A: The composition of a chemical compound is determined using elemental analysis of inorganic elements.…

Q: 5. Knowing that one mole of water has a mass of 18,02 grams, calculate the number of molecules in…

A:

Q: What can be said about 1 mole of Ag and 1 mole of Au? A. They have the same molar mass. B. They…

A: What can be said about 1 mole of Ag and 1 mole of Au? A) They have the same molar mass. B) They…

Q: Use the References to access important values if needed for this question. According to the…

A:

Q: O 2.4 g of carbon-1 O 1.2 g of carbon-1

A: Given The two moles of a substance:

Q: Which of the following gases consist of molecules containing three or more atoms?? O Rn O N,0 CI, Ar…

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.