complete the percent by mass of each element in the compound to one decimal.  a. C12H22O11 b. K2CrO4  How do I do the math behind this?

Q: An oxygen atom has a mass of 2.66 × 10 - 23 g and a glass of water has a mass of 0.050 kg. Use this…

A: A question based on mole concept, which is to be accomplished.

Q: C. Pb(NO3)2(aq) + 2L¡I(aq) Pbl2 (s) + 2LİN03(aq)

A: 1- In this question, you have molecular equation and we want to write net ionic equation.  You can…

Q: Answer the questions for the graph given below. 100 90 80 NaNO 70 60 CaCl 50 Pb(NO)2 40 NaCl ity (g…

A: The given graph is of solubility v(s) temperature.

Q: From 1962 until 1981 pennies were made from 95% copper and 5% zinc and had a mass of 3.1 g. Starting…

A:

Q: Mass of copper chloride used 1.750 g . Initial mass of zinc strip 2.650 g . Final mass of zinc strip…

A: Given : mass of copper chloride = 1.750 gram.       Percentage of water in sample = 21.2 % To find :…

Q: What is the mass of 1 atom of krypton? Group of answer choices A. 3x10-22 g B. 2x10-26 g C.…

A: Any component's amount usually depicted through a particular unit addressed as "Mole". The moles and…

Q: Show your work, use general chemistry rules for significant figures. 6. A solution is made by…

A: Initially, we have 1.0 x 10–4 mol of Na3PO4 or PO43-(aq).  Since PO43-(aq) is a base, when we add…

Q: A pure titanium cube has an edge length of 2.85 inin . How many titanium atoms does it contain?…

A: Edge length of pure titanium cube = 2.85 in Density  of titanium = 4.50 g/cm3

Q: there is a mole of water in a beaker. A student measures the weight of the 1 mole of water of 18.02…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: how many mm3 are in 16.7 cm3?

A: We know,  1 cm3 = 1000 mm3  Given, 16.7 cm3

Q: Please enter the correct significant figures!

A: Since the number of oxygen atoms in 1 molecule of SO3 is 3  hence the number of molecule of SO3 =…

Q: What mass of chlorine is contained in 80.3 g of ZnCl2?

A: %w/w = (mass of chlorine in ZnCl2/mass of ZnCl2) × 100

Q: What is the mass of phosphorus in a 45 kg person? .017 mass of P Incorrect

A: Determine mass of phosphorus in 45 Kg person?

Q: Calculate the mass of 0.11 moles of Cu(NO3)2. grams Give your answer to 2 decimal spaces.

A: Given that , No. Of moles of Cu(NO3)2 = 0.11 moles

Q: calculate the mass of fluorine per gram of iodine in Compound 1.  Express the mass in grams to…

A: Three different compounds contains only iodine and fluorine.In compound    -(1)4.75 g of iodine is…

Q: Part A The American Dental Association recommends that an adult female should consume 3.0 mg of…

A:

Q: is 64 kg bigger than 64000 g

A: To compare the given two masses, first of all, we change the unit of one mass to get the same unit…

Q: 1.Brass is an alloy of copper and zinc. Varying the mass per-centages of the two metals produces…

A: As you have asked multiple questions we have answered your 1st question. If you want the answer to a…

Q: A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 x 10 kg. 20 Use this…

A:

Q: Question attached

A: Given  initial mass = 2.752 g final mass = 1.941 g  a) To calculate the percent of water in the…

Q: 1. 3C2H5OH() + 202) 5CO2(9) + 2H2O(g) 2. 2NO2(9) 2NO(9) + O2g)

A: Enthalpy of reaction :  For a chemical reaction the standard enthalpy of reaction is the total…

Q: Calculate the mass in grams of carbon in a 1 carat diamond that contains 1.32x1022 atoms of carbon.

A: Given the number of C atoms present in the 1 carat diamond = 1.32*1022 atoms We have to convert the…

Q: Gold (Au) has a density of 10.463 g/cm3. What is the mass in kg of 8.74 m3 of Au? ***Be sure to show…

A: Given data is as follows: The density of gold (Au) = 10.463 g/cm3 The volume of Au = 8.74 m3  The…

Q: Using the Avogadro Nu A virus has a mass of 9.0 x 10 12 mg and an oil tanker has a mass of 3.0 x 10'…

A: Mass of 1 virus = 9.0 ×10-12 mg Mass of oil tanker = 3.0 ×107 Kg We need to find mass of one mole of…

Q: stion 1 Determine the mass (in grams) of 1.08 x 1024 gold (Au) atoms. A) 110 g B) 350 g C) 111 g Q…

A:

Q: Mercury is 16.716 times more massive than carbon-12. What is the atomic mass of mercury? Remember to…

A: Given that: Mercury is 16.716 times more massive than carbon-12. This can be expressed…

Q: A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 x 100 kg. Use this…

A:

Q: What is the mass of 1 carbon atom in grams?  What is the mass of one dozen carbon atoms in grams?…

A: The number of moles can be calculated as- n=mMm=n×M where n: number of moles of the atom m: the mass…

Q: A cube of an unknown metal measures 1.61 mm on one side. The mass of the cube is 36 mg. Which of the…

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Q: A penny has a mass of 2.50 g and the Moon has a mass of 7.35 × 10“ kg. 22 Use this information to…

A: Given: Mass of penny = 2.50 g And mass of Moon = 7.35 X 1022 Kg = 7.35 X 1025 g…

Q: O 19.0 cm³ 6.0 cm³ O 7.0 cm³ O 13.0 cm³ O

A:

Q: A raindrop has a mass of 50.mg and the Pacific Ocean has a mass of 7.08e20kg. Use this information…

A: Given:Mass of 1 raindrop = 50 mg = 50×10-3 g.Mass of Pacific Ocean = 7.08 ×1020 Kg.

Q: One day on a walk you find a tiny piece of a meteor. Lab analysis determined it was 1.24 percent…

A: Given: Lab analysis determined 1.24 percent mass (percent composition) of Iridium in meteor sample.

Q: Complete the table below. I| mg 2 g dm 8 m 8 ks S 300 cL %3D II

A:

Q: An instrument used to detect metals in drinking water can detect as little as 1 ug of mercury in 1 L…

A: The number of mercury atoms that is consumed by drinking 1 L of water that contained 1 µg of mercury…

Q: 3. Nitrogen, when combined with oxygen, can form various oxides. 3.5 g of nitrogen gas i burned in…

A: We are authorized to solve only first three subparts of a multipart question. Kindly post rest of…

Q: 1 of 3 The shattered glass case at the scene of a jewelry store robbery was determined to be made of…

A: Given:Mass of glass fragment = 2.636 g.Volume of  glass fragment = 0.864 mL.

Q: Does each sample have a measurable mass? Prove your answer by explaining how you will measure the…

A: The amount of matter that a body contains is a measure of the mass of the body. It is represented by…

Q: An alien from the Planet X uses the units below for mass. How many zigs is 2.5 hums?  3 zigs = 1…

A: There are variety of units that are employed in measurement of mass. These smaller as well as larger…

Q: 22 A penny has a mass of 2.50 g and the Moon has a mass of 7.35 x 10 kg. Use this information to…

A:

Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 x 102 g. Use this information to answer…

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Q: -23 g and a small airplane has a mass of 5000. kg. An aluminum atom has a mass of 4.48 x 10 Use this…

A: Given: Mass of aluminum atom = 4.48×10-23 g Mass of small airplane = 5000 kg

Q: An aluminum atom has a mass of 4.48 x 10 -23 g and a small airplane has a mass of 5000. kg. Use this…

A: We have mass of 4.48*10-23 g , airplane have mass as 5000 kg .

Q: An aluminum atom has a mass of 4.48 x10 -23 g and a small airplane has a mass of 5000. kg. Use this…

A: Avogadro's number is the number of units in one mole of any substance equal to 6.022×1023. The units…

Q: Copper(II) fluoride contains 37.42%% F by mass. Use this percentage to calculate the mass of…

A: Given : Mass of copper (II) fluoride i.e CuF2 sample = 58.0 g And percent by mass of F = 37.42 %

Q: grams of carbon

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Q: Composition C-4 is a plastic explosive having a density of 1.05 g/cm3. Calculate the mass of a brick…

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Q: -23 g and a cooking pot has a mass of 0.500 kg. An iron atom has a mass of 9.27 × 10 Use this…

A: We know that, 1 mole of every substance contains Avogadro's number of atoms or molecules, i.e  6.022…

Q: What is the mass of 1 atom of krypton? a-3x10-22 g b-9x10-22 g c-2x10-26 g d-5x1025 g e-1x10-22 g

A:

Q: Which statement is NOT true about mass?A. It has the same value everywhere on Earth.B. It is…

A: Mass is one of the fundamental quantities. It is defined as the measure of the amount of matter in a…

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.