Experimental Work: Percentage of Water in Copper (II) Sulfate Hydrate    Initial Mass of Hydrate:  ______4.9g_______ Final Mass of Anhydrous Salt:  _____0.256g________

Q: Sample (2) AI 16.729 1- Calculate the number of moles for sample 1 Sample (1) AI 5.369 Element Mass…

A: First calculate the number of moles. Using that moles, calculate the number of atoms for Al.

Q: Find the number of molecules in the following 56.58 g of CO,2 2.16 g of NaCl 133.27 g of CF,

A: We have to calculate  the number  of molecules of the following given molecules present in their…

Q: 4. Fea(SO.). Element * atoms Atomic mass (gimol) Total (gimol) Fe Total Molar mass

A: Applying rule of calculation of molecular weight.

Q: percent of iron in the iron oxide"

A: Given data:-0.220 g of iron atomic weight = 55.85 g/molis burned with oxygen.→ 0.341 g of iron  is…

Q: 2. A student burns a sample of metal in an experiment similar to this one and finds that 25.210…

A: Given: The mass of uranium metal = 25.210 g the mass of the oxide of uranium = 29.471 g A. Also, the…

Q: 1. How many sodium atoms are in 1.3 mol of sodium? 2. How many electrons are in 1.5 x 10-3 mol of…

A: Here we are required  to find the number of atoms present in 1.3 mol of sodium

Q: Compare your molar mass to the following list think is you unknown metal: omal zinc tin platinum…

A: Required to calculate total heat produced by food burned by using the equation: (1calg.oC)(∆T)(mass…

Q: Your Question :Your Question :Your Question :Your Question :Your Question :help  please answer in…

A: 1.02 L / 0.566mol = 19.4 L / n2n2=19.4/1.02*0.566 moln2=10.765 mol Kthe question is how much…

Q: 5. A 295 g sample of unknown metal is at an initial temperature of 13.00 °C absorbs 75.0 kJ. The…

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

Q: Question 4 of 10 How many atoms are in one mole of uranium? O A. 6.02 x 1024 B.…

A:

Q: 3NA2SO4

A: Na2SO4 is an inorganic compound having a chemical name of sodium sulfate.

Q: The Avogadro constant is defined as: A The number of atoms in exactly 1gof carbon-12 B The number of…

A: The Avogadro constant (NA) is the proportionality factor that relates the number of constituent…

Q: ind the number of atoms in 9.4 g B. answer in units of atoms

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: 2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given : Mass of compound combusted = 2.00 g Mass of CO2 produced = 3.30 g Mass of H2O produced =…

Q: Theoretically, should the experimental mass percent water values for everyone who used the same…

A: Answer is yes  If everyone is calculating the percent mass of water in the same hydrate the answers…

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: One 55 g serving of a cereal provides 267.0 mg of sodium, which is 11.6 % of the recommended daily…

A: Convert 11.6% into 100% using mathematical interpretation & convert mass into moles by using the…

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

A:

Q: mass of PCI,:

A:

Q: Q1. If one atom of an element A weighs 6.644 × 10-23 g, then the molar mass in g mol-1 of the…

A:

Q: Question 2 options: A 1.125-gram piece of magnesium was burned in the presence of oxygen, forming…

A: We have to use  mass conservation in this question

Q: For a sample of Carbon that contains 2.41 x 1022 atoms, calculate: • number of moles of carbon in…

A: Introduction: Mole is the amount of substance that contains 6.022×1023 respective particles of that…

Q: A mixture of 134.6 g of Cl, and 29.4 g of P reacts completely to form PCl, and PCl,. Find the mass…

A: Consider the balanced reaction of Cl2 with P to give PCl3 and PCl5 is as follows; Reaction:…

Q: Answer Calculate the number of hydrogen atoms in a sample of borax that contains 3.50 x 10 grams of…

A: We will calculate the number of hydrogen atoms present in borax. We will apply simple mole concept…

Q: A 6.136 gram sample of chromium is heated in the presence of excess bromine. A metal bromide is…

A: The empirical formula represents the simple ratios of present  elements in the compound.

Q: What

A: The atomic mass of Al is 26.98, so 1 mol of Al atoms has a mass of 26.98 g.

Q: B. Calculate the number of moles for each given. 1.) 2.45 x 1023 atoms of Lithium (Li) 2.) 8.30 x…

A:

Q: 1. State whether the following is TRUE OR FALSE. JUSTIFY YOUR ANSWER a. One mole of Calcium has the…

A: ( a.) One mole of Calcium has the same number of atoms but a smaller mass than one mole of sulfur .…

Q: atoms

A:

Q: Part C A sample of propane, C3 H8, contains 15.8 moles of carbon atoms. How many total moles of…

A: Given, sample of propane contains 15.8 moles of carbon.The moles of hydrogen present in the sample…

Q: Which statement concerning 10.0 grams of carbon dioxide (CO,) is correct? Select one: O a. It…

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

Q: Use the References to access important values if needed for this question. A 12.57 gram sample of…

A: Mass of Chromium = 12.57 g Heated in excess Fluorine  Metal Fluoride formed  = 21.76 g Molar mass of…

Q: A sample of Cs weighs 99.5 grams. Will a sample of S that contains the same number of atoms weigh…

A: 1 mole of any substance = 6.022 x 1023 atoms (Avogadro number)   No. of moles of a substance can…

Q: A compound is found to contain 64.80 % carbon, 13.62 % hydrogen, and 21.58 % oxygen by mass. What is…

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

Q: What's the mass of 0.761 moles calcium fluoride? Do not include units in your answer on Moodle.…

A: Given, moles of calcium fluoride (CaF2) = 0.761 moles mass of calcium fluoride (CaF2) = ? Note:…

Q: • Part A How many moles of atoms are in 7.00 g of C? Express your answer numerically in moles. >…

A:

Q: You have 53 carbon atoms. What is the mass? Which units should you use g/mol or amu? a. 686.58 amu…

A: Answer: No option is correct. The correct answer is 636.53 amu We should use amu unit instead of…

Q: Question 1 3.5 x 10 atoms of gold is how many moles of gold? No new data to save. Last checked

A: 1 mole = 6.022 x 1023 entities

Q: Be sure to answer all parts. How many SO₂ molecules are in 2.95 mol of SO₂? How many sulfur atoms…

A: To convert moles to atoms, the concept of Avogadro's number has to be used that is .If the atoms of…

Q: What number of atoms of nitrogen are present in 6.19 g of each a. glycine: C2 H; O2N atoms N

A: Moles of any compound or molecule is found by the formula mass of molecule divided by its molar mass…

Q: Use the References to access important values if needed for this que a. How many moles of dioxygen…

A: According to Bartleby guidelines we have to answer only one question so please submit different…

Q: Which sample contains the greatest number of atoms. A sample of Kr that contains 9.54x1023 atoms or…

A: Given,number of atoms in Kr = 9.54 x 1023 atoms.moles of Mn sample = 9.86 mol.

Q: 1. How many GRAMS of sulfur are present in 4.82 moles of sulfur dichloride, SCl,? grams

A: Given, the number of moles of SCl2 =4.82 moleswe are asked to calculate the amount of sulfur present…

Q: Write the formula and Identify the factors of the following: 1. Aluminum hydroxide Formula:…

A: Salt is made from acid  and base. Acid is defined as substance which release hydrogen ions. Acid is…

Q: What quantity is needed to convert between the moles of carbon and the number of carbon atoms in a…

A: Moles of Carbon atom = amount of carbon atom/atomic mass of carbon Number of carbon atom means how…

Q: Empirical formula lab : compound Magnesium Mg metal with Chlorine Cl the chemical reaction involves…

A: The chemical change occurs when the chemical identity of a compound is destroyed to form a new…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.