e.) Light travels 186 000 miles / second. How long is a light year in meters? (1 light year is the distance light travels in one year) f.) 1 mole of Si atoms contains 6.02 x10 atoms. 6.02 x10 atoms of Si have a mass of 28.1 g. How many atoms of Si are contained in a computer chip that masses 38.02-mg?

Q: How many atoms of He can a balloon hold that has a 21 cm diameter hold? The density of Helium is…

A: Radius, r=diameter2=212=10.5 cm volume of spherical baloon…

Q: In 1961, scientists agreed that the atomic mass unit (amu)would be defined as the mass of an atom of…

A: Yes, the Avogadro number is changed and now becomes bigger than previously. Yes, the definition of a…

Q: How many titanium atoms are in a pure titanium bicycleframe with a mass of 1.28 kg?

A: The number of titanium atoms is in a pure titanium bicycle frame with a mass of 1.28 kg has to be…

Q: • How many moles of Na Cl contain 3.49 x1025 There are ions? Z moles of ions per mele oE Nasl, cund…

A: 1 mole = 6.022×1023 [ Avogadro's number ] Anything which is in the number of 6.022×1023 is said to…

Q: a. Oxalic acid is a crystalline solid with the molecular formula H2C2O4. A sample of pure oxalic…

A:

Q: Nitrogen (N) and silicon (Si) form two binary compoundswith the following compositions:Compound…

A: (a) According to given information, in compound 1 the mass percent of N and Si is 33.28 and 66.72…

Q: the atomic masses of 10B and 11 B are 10.012938 and 11.009305 amu, respectfully. The average atomic…

A:

Q: Which statement is probably true concerning themasses of individual chlorine atoms: All have,…

A: The correct statement regarding the masses of individual atoms of chlorine has to be determined.

Q: The organophosphate nerve agent A-234 is believed to have the formula C5H8F2NO3P. It is one of the…

A: Molecular formula: C5H8F2NO3P Isotope of organophosphate nerve agent with molecular formula…

Q: Calcium Chloride Element #1 Element #2

A:

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: Two thirds of the atom in a molecule of water is hydrogen. What percentage weight of a water…

A: Given: Hydrogen atoms in a water molecule = 2/3 Atomic weight of hydrogen = 1.008 g/mol Atomic…

Q: There are two different isotopes of bromine atoms. Undernormal conditions, elemental bromine…

A: Hello. Since the question contain multiple sub-parts, the first three sub parts are solved. In case…

Q: What is the percent by mass of chromium (atomic mass = 52.00 g/mol) in Cr2S3 (mm = 200.20 g/mol)?…

A:

Q: A sample of Al weighs 52.0 grams. Will a sample of Hg that contains the same number of atoms weigh…

A:

Q: An alcohol is 70.57 % C and 5.935 % H by mass. The rest is oxygen. What is the empirical formula of…

A:

Q: When barium (Ba) reacts with sulfur (S) to form bariumsulfide (BaS), each Ba atom reacts with an S…

A: Since there are 1:1 ratio of atoms in the molecules, and it concludes that the same amount of each…

Q: Sketch a simple schematic diagram of a mass spectrometer. Briefly explain how mass spectrometers…

A:

Q: 5- Atomic mass of aluminum is 27. Accordingly, which of the following statements is wrong? O A) The…

A: The wrong ans is 1st one

Q: A 0.610 mole sample of an element has a mass of 86.0 grams. Identify the element and enter its…

A:

Q: 26. 78) 6.347 x 10°atoms of nickel(III) sulfide has a mass of

A: Given, number of atoms of nickel(III) sulfide =6.347×1026 atomswe are asked to calculate the mass of…

Q: Sulfur’s average atomic mass is close to the wholenumber 32. Chlorine’s average atomic mass is…

A: Given information,     Sulfur’s average atomic mass is close to the whole number 32.     The…

Q: Popol learns in his biology class that human body is approximately 9.5% carbon. How many moles of…

A: Given 9.5% mass percentage. Using this wa can calculate mass of carbon and then moles.  Further…

Q: 1.75 x 1025 selenium atoms contains ____ moles of selenium. Report your answer to 3 s.f. (hint: this…

A:

Q: How many atoms are present in a Mg sample with a mass of 14.6 grams?

A:

Q: titanium

A: Molar atomic mass of Ti = 47.87 gmol-1  Mass of Ti = 1.00kg = 1000 g  Moles of Ti = ( mass / molar…

Q: a. How many hydrogen atoms are in the picture? Nitrogen? b. Does the formula indicate how many atoms…

A:

Q: Match terms with their definitions v Avogardo's number v Molar mass v mole v Atomic mass A. mass of…

A: The mole concept was proposed by Avogadro to specify the atoms, molecules, and ions concentration.…

Q: 2. Law of Definite Proportion. When 60.0 g of carbon is burned in 160.0 g of oxygen, 220.0 g of…

A:

Q: A sample of Cs weighs 88.1 grams. Will a sample of Ti that contains the same number of atoms weigh…

A: Using the relationship between given mass and molar mass, the number of moles of a substance can be…

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: of atoms blocks metals or nonmetals? metals Os OP [G]ns? nonmetals Od Of O metalloids O metals Os OP…

A:

Q: A compound is 32.88% C, 4.14% H, 19.18% N and 43.80% O by mass, and it has a molar mass of 219…

A:

Q: You have a 20.0 g sample of silver metal. You are given 10.0 g of another metal and told that this…

A: The situation is possible or not has to be determined.

Q: 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater…

A: Given: mass of sodium = atomic number of fluorine = 9 kg = 9000 g density of water = 1.01 g/mL…

Q: 6. The precise mass of a compound was determined by high resolution mass spec to be 84.0575. Using…

A: Given the precise mass of the compound = 84.0575 amu We have to choose the most appropriate formula…

Q: By x-ray diffraction it is possible to determine the geometric pattern in which atoms are arranged…

A: Given that : The edge length of the cube = 0.409 nm The density of silver = 10.5 g/cm3 The molar…

Q: Common brass is a copper and zinc alloy containing 37.0% zinc by mass and having a density of 8.48…

A:

Q: How many atoms are present in a Mg sample with a mass of 10.6 grams?

A: Given, mass of Mg sample = 10.6 g Number of atoms present in 10.6 g of Mg sample = ? Note: molar…

Q: How many titanium atoms are in a pure titanium bicycle frame with a mass of 1.34 kg ?

A: Given that mass of titanium bicycle frame = 1.34 kg = 1340 g Molar mass of titanium (Ti) = 47.867…

Q: A sample of Si weighs 54.8 grams. Will a sample of Ba that contains the same number of atoms weigh…

A: Answer: Since, 1 mole is always equal to 6.022×1023, therefore same number of atoms will always be…

Q: The molar masses of the four natural isotopes of chromium are 50 g mol-1, 52 g mol -1 53 g mol -1…

A: Given: The molar mass of four isotopes of chromium is 50 g/mol, 52 g/mol, 53 g/mol, and 54 g/mol.…

Q: 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater…

A: Given: mass of sodium = atomic number of fluorine = 9 kg = 9000 g density of water = 1.01 g/mL…

Q: I'm a crystal of silver, four atoms occupy the volume of a cube that is 0.409 no per side. Taking…

A: Given:Edge length  = 0.409 nmDensity = 10.5Calculate the number of atoms in one mole of silver ?

Q: 4. Calculating Mass of an Element in a Compound. Pitchblende is the most important compound of…

A:

Q: d. What is the % composition of carbon in Excedrin? e. What is the % composition of hydrogen in…

A: From the formula of excedrin, C25H27N5O8, the number of moles of each of the elements is indicated.,…

Q: Please use the precision of the values in the periodic table link to determine the correct number of…

A: The atomic mass of  He = 4.003 amu The atomic mass of  Fe = 18.998 amu The atomic mass of  Na =…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.