The mass of a single nickel atom is 9.75x10-23 grams. How many nickel atoms would there be in 153 milligrams of nickel? Submit Answer Retry Entire Group 8 more group attempts remaining atoms

Q: iron

A: Atomic mass of Iron = 56 g/mol Given mass of iron bar = 36.2g Number of moles in iron bar is…

Q: formula mass of copper(II) fluoride?

A:

Q: Calculate the mass, in grams, of 882 atoms of cesium, Cs. (molar mass of Cs is 132.91 g)

A: Given  Molar mass of cesium = 132.91 g/ mol  i.e. it is mass of 1 mole of cesium atoms  We know…

Q: What is the element the has a mass of 2.5g when 1.25 moles are taken of it? H2 N2 Cl2 O2 Br2

A: Given Mass of element = 2.5 g moles = 1.25 moles

Q: les of an element. What amount of gallium, in moles, does 8.34 g Ga represent? moles

A: Given , Weight of Ga = 8.34 g  We need to find moles of Ga  We know that molecular weight of Ga is…

Q: 8. One mole of an atom of a substance is equal to the: a Gram atomic mass of the element b Gram…

A: The mass of one mole of an element equal in gram to rhe atomic weight called gram atom. Gram atomic…

Q: How many atoms are in K2S2O8 Group of answer choices   A.) 12 atoms B.) 32 atoms C.) 10 atoms D.)  8…

A: Calculate the number of atom in a molecule.

Q: A sample of ammonia, NH3, contains 2.4 x 10° hydrogen atoms. How many NH3 molecules are in this…

A:

Q: How many moles of phosphorus atoms do you have if you have 4.00 x 1022 atoms of phosphorus. (The…

A: Please find the attached images for the answer

Q: 21. How many total atoms are present in 1.60 mol of sulfur dioxide? A) 9.63 X 1023 B) 1.54 X 1023 C)…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: A 1 Amount of substance 1.1 Which mass corresponds to 6 × 1023 u (without calculation)? 1.2 What is…

A: The mass that corresponds to 6 × 10^23 atomic units is 1 gram. This is because 6 × 10^23 atomic…

Q: A 22.42 gram sample of chromium is heated in the presence of excess oxygen. A metal oxide is formed…

A: Given:- Mass of Cr = 22.42 g  Mass of metal oxide = 29.32 g  To determine :-  Empirical formula of…

Q: How many moles of atoms are in each elemental sample? (a) 4.6 × 102ª Pb atoms (b) 2.87 × 1022 He…

A: (a) ∵ 6.23×1023 atoms of Pb →1 mole of atoms ∴ 4.6×1024 atoms of Pb →4.6×10246.022×1023=7.63865…

Q: mat Tools Add-ons Help Last edit was 8 minutes ago ormal text Trebuchet . IUA 12 %3D 5) How many…

A: GivenFor question 5Mass of N = 10.5 gFor question 6Number of atom of nickel = 6.6 x 1017

Q: Which one of the following statements about the compound C3H4 is CORRECT? Oa. Five molecules of C3H4…

A:

Q: Which of the following statements is incorrect? Multiple Choice O O N₂H4 has four times as many…

A: The ratio of the atoms present in a compound is the ratio of the number of atoms present in a…

Q: Determine the number of atoms in 21.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Number of Sodium atoms can be calculated as follows -

Q: 9. There are 1.5 x 1023 atoms in 2.5 moles of zinc. TRUE FALSE Chock it skip

A: Number of atoms in 1 mole = 6.02 x 1023

Q: 4/Determine the Mass Percentage of each element in the compound Put the first element in the first…

A: The first step of this problem is to calculate the molecular weight of the given compound, followed…

Q: How many atoms are in 25.6 g tin? O 3.01 x 1023 atoms O 3.01x 1024 atoms O 6.02 x 1024 atoms O 1.30…

A: Given data:  Mass of tin = 25.6 g Standard data:  The molar mass of tin = 118.71 g/mol

Q: 2. How many grams are found in a sample of ammonia, NH3 that has 4.59 x 10²5 molecules? A) 4.71 x…

A: The question is based on mole concept. we need to calculate mass of given quantity of ammonia.

Q: ne ave 30.79 ncorrect

A: Dear student I have given answer to your question in the image format.

Q: How many Kr atoms are there in a 12.7 gram sample of Kr ? atoms Submit Answer Retry Entire Group 8…

A: Given mass of sample of Kr = 12.7 g

Q: QUESTION 2 How many silver atoms are there in 5.89 moles of silver? You 23 will need to divide your…

A:

Q: Unknown element branium has two isotopes. the first isotope  (A) has a mass of 56.971 amu and the…

A:

Q: e.) Light travels 186 000 miles / second. How long is a light year in meters? (1 light year is the…

A: 3. e.) Given: Light travels 186 000 miles/second. First determine the number of seconds value in one…

Q: An alcohol is 68.84 % C and 4.962 % H by mass. The rest is oxygen. What is the empirical formula of…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: What is the mass of 6.7 x 10 atoms of carbon? Hint: Remember, mass is (g) and you must convert from…

A: Given that,  The number of atoms of carbon = 6.7×1025 atoms. To find, the mass of 6.7×1025 atoms of…

Q: Which of these has the largest mass? an Avogadro's number of potassium atoms one mole of bromine…

A: -> 1 mol atom = 6.022 × 1023 atoms.-> atomic mass is mass of 1 mol atoms.

Q: If 17.28 g of a pure element contains 8.545×1022 atoms, what is the element? The element is: (Enter…

A: The mass of the element that contains 6.023 × 1023 atoms is called as the molar mass of the element.…

Q: please answer as fast as possible How many oxygen atoms are there in 22.0 g of carbon dioxide? A)…

A: Number of moles is given by:1 mole of a substance contains 6.02 x 1023 particles.

Q: What is the mass of 2.21 mol of C₂H₁0? mass: 58.12 Incorrect g

A: moles of C4H10 = 2.21 molmass of C4H10 = ?Note:molar mass of C4H10 = 58.12 g/mol

Q: Many grams of sodium contain the same number of atoms as 10.9 g of potassium? (Dimensional analysis)

A: Given that,  Weight of potassium = 10.9 g Moles of potassium in 10.9 g = 10.9 g/39.0983 g/mol =…

Q: The mass of a single chromium atom is 8.64×10-23 grams. How many chromium atoms would there be in…

A: We know 1 mg = 1 x 10-3g.  So, 237mg means 237 x 10-3g

Q: Calculate the mass of 7.81 × 1022 atoms of magnesium. Option: you may use the Chemistry Equation…

A: Given,number of atoms of magnesium = 7.81 x 1022 atoms.

Q: How many grams of Zn are there in a sample of Zn that contains 4.33x1023 atoms? grams

A: Using molar mass of Zn, grams of Zn present in a sample of Zn can be calculated.

Q: [Review Topics] Use the References to access Important values If needed for this question, How many…

A:

Q: w many moles of calcium atoms do you 1021

A: Given, No. of atoms = 6.22×1021 atms To calculate the number of moles of calcium.

Q: 15 How many atoms of Aluminum are in 6.95 moles of Aluminum?

A:

Q: QUESTION 8 (a) In the certain hydrated salt MSO3-4H2O, the mass percentage of H2O is 44.71%.…

A: Answer:- This question is answered by using the simple concept of calculation of average atomic…

Q: STARTING AMOUNT ADD FACTOR 183.31 How many atoms of zirconium are in 0.3521 mol of Zio, ? ZISIO,…

A: Given,The compound = ZrSiO4 Number of moles of ZrSiO4 = 0.3521 mol.

Q: How many atoms of zirconium are in 0.3521 mol of ZrSiO?

A: We know 1mole= 6.022x1023 In 1 mole of ZrSiO4 there is one mole Zr. it is evident from the formula…

Q: Determine the Mass Percentage of each element in the compound Put the first element in the first box…

A:

Q: a) how many moles of Na3PO4 are in a sample with a mass of 80.11 g? b) how many atoms of oxygen are…

A: a) given, mass of Na3PO4 = 80.11 g moles of Na3PO4 = ?  Note:  molar mass of Na3PO4 = 163.94 g/mol

Q: QUESTION 6 How many atoms are in 135.91 grams of oxygen?

A: I solved answer consider O not O2 because in question oxygen gas is not mentioned. If you want to…

Q: If a sample contained 9.65 x 1023 atoms of iodine, how many grams would this be? Round to one…

A:

Q: How many moles of atoms are contained in the following? (d) 14.8 g CH3OH (e) 2.88 g Na2SO4…

A: Given: mass of CH3OH = 14.8 g mass of Na2SO4 = 2.88 g mass of ZnI2 = 4.20 lb = 1905.09g molar mass…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.