152 A 352.44 155 T 362.31 153 G 355.67 156 X 365.88 154 D 359.12 157 Z 369.52 You time travel 100 years into the future and learn that several new elements have been discovered, as pictured. These elements are frequently found as bromides, and need to be separated in order to extract the pure element. Before going through this effort, it is useful to know what amount of the element can be extracted. How many moles of element X can be extracted from 237 grams of X4Brg?

Q: 33. How many hydrogen atoms are in 4 molecules of isopropyl alcohol, C;H-0? А. 2.4 x 1023 atoms of H…

A: Given, 4 molecules of isopropyl alcohol, C3H7O   Required,                Number of hydrogen atoms…

Q: Element Moles Number of Atoms Ne 0.466 Ar Xe He 1.90 3.78x1024 1.28×1020

A:

Q: ny moles c

A:

Q: 3) How many molecules are in 120.6g of carbon? Show all your work.

A: The explanation is given below-

Q: Question 7 17.3 g of oxygen contains O a. none of the above O b.6.51 x 1023 oxygen atoms oxygen…

A: Molecules are made up of two or more than two atoms.We have been asked to choose one option from…

Q: 1) Does every mole weigh the same? Please explain 2) How are liters used to determine moles? for…

A: In this question, we have to answer both the parts regarding mole.

Q: How many moles of carbon monoxide are present in 2.05 grams of this compound? _____moles How many…

A: The moles of a substance is calculated from the given mass of the substance using the below…

Q: 0.4 moles of calcium carbonate contains how many carbon atoms?     A. 1.2 x 1023   B. 4.8 x…

A: The formula of calcium carbonate = CaCO3  Molecular weight of CaCO3 is 100 gm/mol  1 mole CaCO3 =…

Q: A. How many grams of B are present in 3.48 grams of boron trifluoride ?  _______grams B. B. How…

A: Given, Boron trifluoride , BF3

Q: a. How many molecules of dinitrogen monoxide are present in 4.63 moles of this compound?…

A: a) Given : Moles of dinitrogen monoxide i.e N2O = 4.63 mol.

Q: 0.6 moles of strontium phosphate contains how many oxygen atoms?     A. 0.8 NA   B. 2 NA   C.…

A: Answer: Molecular formula of Strontium Phosphate: Sr3(PO4)2

Q: 1. What is the mass of exactly one mole of HO3Br? Answer to the nearest 0.01 g.   2. What is the…

A: Given, Number of moles of HO3Br = 1 mole      Required,                             1. Mass of…

Q: A sample of N20 contains 1.10x1024 molecules. How many moles of N20 are present? mol Find the mass…

A: Molecules of N2O = 1.10×1024 Molar mass of N2O = 44g/mol  Avogadro number = 6.023×1023

Q: QUESTION 2 a. How many moles of Al203 are in 28.0 g of Al203? Report your answer to the correct…

A:

Q: One mole of oxygen molecule (02) contains how many atoms of oxygen? a. 6.022 × 1023 O b. 1,6021 ×…

A: We have to tell the no. Of oxygen atom in 1 mole

Q: 8.How many carbon atoms in 70 molecules of carbonic acid, H2CO3 are. A) 100 B) 4.8x1025 C) 70 D)…

A: Carbonic acid  have formula  H2CO3. Given Number of molecule of carbonic acid =70 Number of atom of…

Q: Which sample has the largest number of oxygen atoms? a. 3.0 mol H20 b. 2.5 mol of CO2 c. 2.0 mol of…

A:

Q: Determine the moles of silicon that contain: a) 66.7 g of Si ______ moles Si   b) 3.99 × 1023 Si…

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

Q: FIOW TTa ly How many grams of aluminum oxide (Al, O) are equal to 6.32 x 1023 formula units?

A:

Q: Show all steps in the answers for the following questions and use significant figures in the…

A: * Moles = Mass / molar mass  * 1 mol = 6.022 × 10²³ atoms or molecules * Molar mass of Carbon = 12…

Q: The number of moles of atoms in one mole of carbon dioxide gas, CO2, is

A: Given :- number of moles of CO2 = 1 mol  To calculate :- number of moles of atoms in 1 mol CO2

Q: Which one of the following molecular formulas is also an empirical formula?

A:

Q: How many moles of C3HB that contain 3.17 x 1025 of hydrogen atoms (NA = 6.022 x 1023)? %3D O a. 52.6…

A: 1 mol of any compound contain avogadro number6.022×1023 of molecules Here we have to determine the…

Q: MCQ 8: The molecular formula of different compounds shows actual numbers of A. atoms B. molecules C.…

A: Molecular formula describe the actual number and type of atom in a single molecule of a compound.

Q: In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B.…

A:

Q: a. How many molecules of dinitrogen monoxide are present in 4.63 moles of this compound?…

A:

Q: FIND THE NUMBER OF MOLES OF OXYGEN IN 42.7g H2O

A: Given,      Mass of Water (H2O) = 42.7 g

Q: H₂O C. CH4 burning Q13. The correct name of HI(aq) is? A. lodic acid C. Hydrogen iodide D. Benzene…

A: Q. 13 as specified by the student.  Correct name of HI(aq) is :

Q: Which one of the folllowing samples contains the most atoms? Hint. Think about definitions:I am…

A: Which one of the following samples contains the most atoms?

Q: 26. Write the formula for oxygen gas. 27. How many atoms (and moles) are represented by the formula…

A: 26. Oxygen is a diatomic gas and the molecular formula of oxygen gas is O2  One mole of oxygen gas…

Q: How many sulfur atoms are in 3.6 x1024 aluminum sulfate molecules?   A. 6   B. 18 NA   C. 4 NA…

A: Given that: Molecules of aluminium sulfate = 3.6×1024 atoms Molar mass of Al2(SO4)3 = 342.2 g/mol

Q: Find

A: Molar mass of NO2 = ( molar atomic mass of N ) + 2 • ( molar atomic mass of O )  Molar mass of NO2 =…

Q: 2. Consider the compound potassium hypochlorite. a. Write out the formula for potassium…

A: 2. We have to answer the following questions Write the formula of the potassium hypochlorite.…

Q: Find the number of O, molecules in 2.5 mol of oxygen (atomic mass of O=16) Select one: 23 O a. 1.5 x…

A: We have given that  Moles of O2 = 2.5 mole Atomic mass of Oxygen = 16 g/mole

Q: Determine the number of moles in the given amount of each substance. Show or explain your work. a.…

A: 1 mole of any element / compound contains 6.02 * 1023 atoms / molecules  of that substance. Mass of…

Q: Q12. Which of the following does involve a chemical change? A. Dissolving NaBr in H₂O C. CH4 burning…

A: Physical changes are temporary or reversible change. When a substance undergoes a physical change,…

Q: Find the mass of 1 molecule of NaH in gram. а. 23.99 b. 3.98 x1023 С. 12 d. 3.98 x10-23

A: Atomic mass of sodium (Na) and hydrogen (H) atoms are as follows; Atomic mass of Na = 22.99 g/mol…

Q: 1. How many atoms are in 3.2 mol of chlorine? 2. How many moles of chlorine are in 1.0 x 10° atoms?

A: To calculate: 1. The number of atoms in 3.2 mol of chlorine. 2. The number of moles of chlorine in…

Q: 5. When propane gas burns, it reacts with oxygen to yield carbon dioxide and water. 1 mole C3Hs+…

A: Balance the chemical equation as follows:

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: 6. How many molecules of C3H8 are in a sample of 1.5 mol? 7. How many molecules of carbon dioxide…

A:

Q: Which sample contains the greatest number of atoms. A sample of Li that contains 3.12×1024 atoms or…

A: Avogadro's  number is a proportionality factor and gives the number of atoms, molecules or ions in…

Q: 1. How many MOLES of carbon monoxide are present in 2.76 grams of this compound ? moles. 2. How many…

A:

Q: One molecule of lodine (1₂) and two molecules of potassium (NaCl) combine in a reaction. How many…

A: In this question, 1molecule of Iodine combined with 2molecules of NaCl and we need to determine the…

Q: How many atoms are there in 0.803 mol of hydrazine, N2H2? What is the number of atoms?

A: 0.803 mol of hydrazine, N2H2 We need to calculate the number of atoms present in 0.803 mol of…

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.