You have a sample of 3.01 x 10^23 atoms of silver. How much does this sample weigh? A. 0.0500 g B. 53.9 g C. 2.00 g D. 107.9 g

Q: 8.* A4.00 gram sample of a hydrate of nickel(II) bromide loses 0.793 grams of water when heated.…

A: The question is based on the concept of experimental chemistry. we have to calculate the empirical…

Q: Use the References to access important values if needed for this question. 1A 8A H 2A 3A 4A SA 6A 7A…

A: Two species are iso electronic when they have same number of electron  thus have electronic…

Q: Determine the mass in grams of 8.72 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: We have 8.72*1021 atoms of Ba. Mass of one mole of Ba is 137.33 g We have to calculate the mass of…

Q: Which of the following shows a correct setup? O1.45 mol Ca x- 40 g Ca X1 mol Ca O1.45 mol Ca x Са хт…

A:

Q: If 26.98 grams is the mass of 1 mole of Aluminum, 26.98 grams =1 mole of Al 13.49 grams = 0.5 moles…

A: Mole concept relates the number of moles with the molar mass and mass of the substance. Just like…

Q: 2) a) Write formulas for the figures. Dark circles represent element A and light circles represent…

A: Atomic element : Atomic element have single atoms as their basic unit. Molecular element : The…

Q: Use the standard entropy data to determine the change in entropy for each of the reactions listed (…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: What is the mass of 3.119 moles of Ca(OH)2? a.  231.1 g b. 462.1 g d. 74.10 g c. 4.209 x 10^-2 g

A: Given, moles of Ca(OH)2 = 3.119 moles. We have to calculate how many grams of Ca(OH)2 are present…

Q: Find the mass of 1 atom of Chlorine in gram.

A:

Q: A.)What mass of cobalt contains the same number of atoms as 77.0 g of fluorine?

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

Q: Sulfur and fluorine form several different compounds including sulfur hexafluoride and sulfur…

A: Reaction of formation of SF6 is as follows: Mass of Fluorine per gram of Sulphur in Sulfur…

Q: As we look around space we find that most of it is composed of (4)_ hydrogen combines with carbon it…

A:

Q: Determine the mass in grams of 2.25 x 1021 atoms of copper. (The mass of one mole of copper is 63.55…

A:

Q: What is the mass of a 12.56L sample of carbon dioxide? A. 17.9 g B. 8.9 g C. 4501 g D. 24.7 g

A: 22.4 L of CO2 = 44g 1L of CO2=44/22.4g 12.56 L of CO2= 44*12.56/22.4 12.56 L of CO2=24.7g

Q: What is the mass of 3.30 × 10 ²³atoms of silver, Ag? (Sec. 8.4) (a) 0.549 g (b) 25.8 g (c) 59.1 g…

A: The atomic mass of an element will be equal to the Avogadro number of particles ( be it atoms,…

Q: Use the periodic table from an alternative universe below to answer the questions! Symbo 1A 2A 8A…

A: Using the periodic table and the group in which the elements belong, The valency of : K is +1 O is…

Q: 47) Two samples of potassium iodide are decomposed into their constituent elements. The first sample…

A: Given: In sample 1, the mass of potassium i.e. K produced = 13.0 g. And the mass of I produced in…

Q: 7. Name the following compounds a. CI X Br Br b. C. d.

A: According to IUPAC nomenclature, select the longest chain of hydrocarbon which contains the maximum…

Q: A sample of Hg weighs 90.9 grams. Will a sample of Rb that contains the same number of atoms weigh…

A: The number of species atom will be expressed as the mathematical product species moles along with…

Q: a. b. C. d. 'Н CI 1. BULI, -70 °C to +20 °C 2. H₂0 1. BuLi, -70 °C to +20 °C 2. H₂0 NMe2 OMe NH3 NH3…

A:

Q: 9.31 g is the same mass as O 93.1 cg O 9310 mg O 931 kg 0.0931 dg O 931 mg

A: 1 cg = 10-2 g93.1 cg = 93.1 ×10-2 g93.1 cg = 0.931 g   1 mg = 10-3 g9310 mg = 9310× 10-3 g9310 mg =…

Q: Determine the mol H20/mol CaSO4 if you have the following data to two decimal places (MM H20 =18.02…

A:

Q: For each reaction, predict the sign and find the value of ΔS°:

A: Given:-                     a    3NO2g +H2Ol  →2HNO3l +NOgb   N2g +3F2(g)   →2NF3gc   C6H12O6s +6O2g…

Q: Circle the best correct answer for the following multiple choice questions: 1) How many aluminum…

A:

Q: A sample of lead contains 8.88 x 1015 micrograms. How many atoms does this sample contain?

A:

Q: Determine which sample contains the mos atoms. A 10 g sample of Uranium 11 g sample of copper  1 g…

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

Q: A piece of aluminum foil measuring 11.20 cm × 6.00 cm × 0.566 mmis dissolved in excess HCl(aq). What…

A: Given, Aluminium foil measuring = 11.20 cm × 6.00 cm × 0.566 mm Density for Al = 2.70 g/cm3   Volume…

Q: Find the mass of 1 molecule of Li H in gram. a. 7.949 b. 1.32 x1023 С. 4 d. 1.32 x10-23

A:

Q: 1) C a b The number of lines exhibited by hydrogen(s) a is The number of lines exhibited by…

A:

Q: A tiny sample of gold contains  1.5 x 10^16 atoms. The mass of the gold sample is ______  μg.

A: Given the number of gold atoms, the tiny sample contains = 1.5*1016 atoms We have to find the mass…

Q: Use the periodic table from an alternative universe below to answer the questions[ Syn A 1A 2A 8A…

A: The balanced reaction is: 2K3O+3VP→3K2P+1V3O2 Assuming that the molar mass of an element is twice of…

Q: 1. 6.02 x 1023 is called a. Avogadro's number. b. Newton's C. Aristotle's d. Planck's mass. 2. The…

A: Avogadro's Hypothesis:- 1 mole of substance = 6.02*1023 particle

Q: Una masa de mercurio ocupa 0.750 L Qué volumen ocuparia una masa igual de etanol? La densidad del…

A: Note - Since you have asked multiple question, according to our policy, we are supposed to solve…

Q: 38. How many grams of hydrogen are there in 2.5 g of water? b. 0.28 g a 3.5 g c. 0. 95 g d. 2.22 g

A: Given data  Given mass of water=2.5g Grams of hydrogen=??

Q: Determine the mass in grams of 7.75 x 1021 atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Given,the mass of one mole of carbon = 12.01 gNumber of carbon atoms = 7.75×1021 atomsHere, we are…

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

A:

Q: If a compound is made up of carbon and hydrogen only, what is the mass of its sample that contains…

A:

Q: that reads 452 g. How much sample is left after half an hour? 5.00 g 90.4 g 14.1 g 75.3 g

A:

Q: Use the following information to determine the mass of chlorine combined with the magnesium to two…

A: Given, mass of crucible = 35.1  mass of crucible and magnesium = 38.92  mass of crucible and…

Q: You have a sample of 1.204 × 1024 atoms of gold. How much does this sample weigh?

A: Given  number of atoms of gold = 1.204 * 1024 atoms To find weight of this sample. Required data -…

Q: A sample of carbon weighting 1.48 g was burned in an excess of air. The mass of carbon dioxide, the…

A: This can be calculated in context to the percent mass of carbon. The reaction occurring in the…

Q: The total number of atoms in a molecule of caffeine (C8H10N4O2) is:

A: Given :- molecular formula of caffeine = C8H10N4O2  To calculate :-  Total number of atoms in…

Q: Determine the number of atoms in each sample: a. 45 g Si b. 45 g Sn c. 28.2 mg Pb

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: Mass of beaker: 110.000g Mass of silver nitrate in beaker: 40.00ml After 40ml: 154.127g After 80ml:…

A: Mass of empty beaker = 110g Mass After 40ml = 154.127g After 80ml = 198.254g After 120ml = 242.381g…

Q: 2 N205 (s) 54 NO, (g) + 02 (g) AG;° (kJ/mol) N2O5 (s) 117.7 NO2 (g) 51.8

A: From the standard Gibbs free energy data □G° = [Total Gibbs free energy of products] - [Total Gibbs…

Q: 14.8 g sample of CaSO4 is found to contain 4.36 g of Ca and 6.96g of O. Find the mass of sulfur in a…

A:

Q: Mass of magnesium before is 0.33g Mass of magnesium after is 0.49 g   Identify major sources of…

A: Interpretation -  To explain about how the mass of magnesium is differ too much before weighing…

Q: 6. How many oxygen atoms are there in 2.5 g of oxygen gas? a. 2.4 x 1022 b. 4.7 x 1022 c. 9.4 x 1022…

A: