What is the mass in grams of 1.20 × 1014 lead (Pb) atoms? X 10 Enter your answer in scientific notation. es

Q: Calcium chloride is 36.11% calcium. How many grams of calcium are present in 2.55 x 103 g of calcium…

A: The mass percent of the calcium in calcium chloride is = 36.11 % The mass of calcium chloride is =…

Q: Most chemistry laboratories have balances that can weigh to the nearest milligram. Would it be…

A: Given,  Molecules of C18 H38 = 5.88E+18 molecules The mass of C18 H38 is:

Q: Suppose you measure out 5.00 x 1022 atoms of aluminum in the form of a solid nugget on the balance.…

A: The formula for the conversion from atoms to moles is : => moles = number of atoms given / 6.022…

Q: A sample of C,H, has 7.20 x 1024 H atoms. How many carbon atoms does the sample contain? number of…

A: Given : The compound is C3H8. And number of H atoms in compound = 7.20 X 1024 atoms. The number of…

Q: Macmillan Learning Calculate the mass in grams of 2.13 × 1024 molecules of propane. The chemical…

A: Molecules of propane is given and we have to find mass of propane.

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: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Here,hydrochloric acid react with sodium hydroxide to give water and sodium chloride.Mass of HCl =…

Q: Determine the mass of oxygen in a 3.8-g sample of Al2(SO4)3. Express your answer to two significant…

A: Given, Amount of sample is 3.8 g. Molar mass of Al2(SO4)3 is:

Q: 19.78 mL of bromine contains 6.022 x 1023 bromine molecules. How many bromine atoms are in 3.00 L of…

A: Given -> Volume (V1) = 19.78 ml = 0.01978 L (1L = 1000 ml) Number of bromine molecules in V1=…

Q: A sample of oxygen contains 7.1 x 1020 atoms. How many moles are in this sample? Your answer should…

A: One mole of a substance contains 6.022×1023 particles(atoms/ions/molecules).In this problem,we've to…

Q: How many atoms of chlorine are in 6.85 g of chlorine

A:

Q: The amino acid methionine, which is essential in human diets, has the molecular formula C5H₁1 NO₂S.…

A: The objective of this question is to find out the mass of oxygen in a given mass of methionine. To…

Q: What is the mass in grams of 5.20 x 10 tin (Sn) atoms? x 10

A: Given : Number of atoms of Sn = 5.20 X 1012 atoms.

Q: On the fictional planet of Nofactori, two commonly used mass units are related to one another by the…

A:

Q: If I start with 17.88 moles of oxygen, how many grams of CO2 can be made? 2 C3H18 + 25 O2 16 CO2 +…

A: Here we have to apply basic maths and from that we can obtain the answer Mass of 16 moles of CO2 is…

Q: An unknown compound has the following chemical formula: N_xO where x stands for a whole number.…

A:

Q: This question will walk you through the process of calculating the number of atoms present in a…

A:

Q: What is the mass of 4.78 x 1024 nitrogen dioxide (NO₂) molecules?

A:

Q: A sample of mercury(I) nitride weighs 3.33 dg.  How many nitrogen atoms are in this sample?The…

A:

Q: What is the mass in grams of 4.57 × 10²⁵ molecules of Cl₂? I get the write and but the wrong number…

A: Mole concept: The number of molecules in one mole of chlorine is equal to the Avogadro number. The…

Q: Calculate the number of oxygen atoms in a 150.0 g sample of dinitrogen tetroxide (N₂O4). Be sure…

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

Q: How many grams of ammonia (NH3) will be required to produce this amount of nitrogen?

A: Balanced equation:                      2NH3 - 3H2 + N2 Moles of N2= 22.53g/28gmol-1=0.8046mol

Q: Determine the mass in grams of 8.01x10^21 atoms of barium. (The mass of one mole of barium is…

A: Number of Barium atoms = 8.01 × 1021 atommass of 1 mole of Barium = 137.33 gNote:1 mol of Barium…

Q: Liquid octane (CH3(CH2)6CH3) will react with gaseous oxygen O2 to produce gaseous carbon dioxide…

A: The balanced reaction between octane and oxygen is written below.2C8H18+25O2 → 16CO2+18H2OThe mass,…

Q: 9.43×1019 CH4CH4 molecules Express your answer using three significant figures.   Calculate the mass…

A: We know, 1mole consists of 6.022x1023 quantity. Molar mass of CH4=16.04g/mol We will convert number…

Q: Calculate the number of magnesium atoms in a 130.0 g sample of forsterite (Mg₂SiO4). Be sure your…

A:

Q: How many grams of carbon are in 7.25 mL of butane (C4H10)? (density of butane = 0.601 g/cm^3)

A:

Q: A sample of C,H, has 9.28 x 1024 H atoms. How many carbon atoms does the sample contain? number of…

A: The amount of substance is usually defined in terms of mole. The mole is the SI unit of the quantity…

Q: The formula for carbon monoxide is CO. a. How many molecules are in 3.35 grams of carbon monoxide?…

A: Given:The formula of carbon monoxide is COMass of CO = 3.35 gWe have to determine:(a) The number of…

Q: Calculate the number of grams of sodium in 2.20 g of this sodium-containing food additive.…

A: Given, mass of sodium benzoate (NaC7H5O2) = 2.20 g mass of sodium (Na) = ? Note: molar mass of…

Q: Calculate the number of grams of sodium in 2.20 g of each sodium-containing food additive.

A:

Q: Chemical Formulas as Formulas: Converting between Grams of a Compound and Gram of a Constituent…

A: First convert given mass in kg  into grams .

Q: A sample of a compound has a mass of 42.66 g with 1.06 x 10-1 mol. What is the molecular mass of the…

A:

Q: The following equation represents the reaction between aluminum (Al) and bromine (Br2) to produce…

A: Aluminium reacts with bromine to form aluminium bromide. The equation for the balanced chemical…

Q: An unknown compound has the following chemical formula: Fe(NO3) where x stands for a whole number.…

A:

Q: The chemical formula for propane is: CH;CH,CH3 Calculate the molar mass of propane. Round your…

A: A chemical compound is formed when two or more elements are combined together and the molar mass of…

Q: A molecular compound has the following empirical formula:  CH2O.  The molar mass of the empirical…

A:

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

A:

Q: The reaction between copper and sulfur is represented by the chemical equation shown below. What is…

A: Mole=Mass/molar mass  Then mole-mole relationship We will get the answer

Q: The chemical formula for hydrogen bromide is HBr. A chemist measured the amount of hydrogen bromide…

A: Here mass of hydrogen bromide (HBr) is given. We have to convert mass to number of moles. Mass and…

Q: A chemist measures the amount of iodine solid produced during an experiment. He finds that 3.02 g of…

A: Please find your solution below : Mole is a unit used to measure amount of a substance. The number…

Q: What mass of copper(I) phosphate contains 3.20x1023 oxygen atoms? Provide your answer in decimal…

A: Chemical formula : Cu3(PO4)2  Given, Atoms of Oxygen = 3.20 x 1023 atoms. Molar mass  : 380.58 g/mol…

Q: Tia has a sample of pure gold (Au). She weighed the sample and the result was 10.810.8 grams. Tia…

A: Number of atoms = number of moles x 6.0224 x 1023 Number of moles = Mass/molar mass

Q: 14.255 g of a compound with the molecular formula C5H4N4 contains ______ carbon atoms. Report your…

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 8.91 × 1016 chromium atoms? Put your answer in box in scientific…

A:

Q: 6. A student performed an experiment in CT-STEM Lesson 2 (the chemical reaction is shown below). The…

A: According to the law of conservation of mass, mass can neither be created nor be destroyed.

Q: How many H atoms are in 77.1 g of isopropanol (rubbing alcohol), C3H8O? Enter your answer in…

A: Given: Mass of isopropanol = 77.1 g Molar mass of isopropanol = 60.1 g/mol

Q: 4.8×1025 O3O3 molecules Express your answer using two significant figures.   Calculate the mass in…

A: Check the relation for molecules to moles and then convert that moles into the mass.

Q: What is the mass of 3.5 x 10^-3 molecules of copper (II) carbonate? Use correct significant figures…

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

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.