Moles of Chalk  Problem : How many moles of chalk does it take to write your name ? Hypothesis: i predict that it will take_________________moles of chalk to write my name . Brainstorming space: (what you need to know/ figure out in order to give a good hypothesis) Procedure: (please write a list of steps that you will follow to figure out the answer)

Q: Important values if needed for this question. 1. How many MOLECULES of sulfur dichloride are present…

A: Mole interms of particles: 1 mol = avogadro number of particles            = 6.022 x 1023…

Q: ow many MOLES of ammonium chromate are present in 2.14 grams of this compound ? moles

A: Atomic mass of N= 14 g/ molAtomic mass of H =1 g/molAtomic mass of Cr =52 g/ molAtomic mass of O= 16…

Q: An 8-ounce glass of water contains 24.7 moles of hydrogen. How many hydrogen atoms do you drink per…

A: Answer :-  1.49 × 1025 hydrogen atoms.…

Q: the molecular weigh of CH,CH,COOH is Select one: a. 34.079 g/mol b. 64.079 g/mol C. none of the…

A: The given compound is an organic compound with the functional group -COOH. This suggests that it…

Q: 7. How many grams of silver sample is equal to 0.0417 mole of silver The answer is

A: given, the number of moles of silver, Ag = 0.0417mole

Q: Drug: Sensipar

A: a) The molecular formula of drug Sensipar is the brand name of Cinacalcet with molecular formula :…

Q: b. 3.01 x 1023 atoms of Rubidium c. 8.08 x 1022 atoms of Krypton d. 2.997 x 1025 atoms of Vanadium

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: How many moles of carbon dioxide are in 211 g of Carbon dioxide? 4.8 4.79 (with margin: 0)

A:

Q: Mole problem (Chemistry), Please show all calculations: How many moles of carbon tetrafluoride are…

A: Given - - > Mass of carbon tetrafluoride = 1.55 * 105 kg Molar mass of carbon tetrafluoride = 88…

Q: Use the References to access important values if needed for A sample of chlorine contains 24.3…

A: Elemental form of chlorine is Chlorine gas i.e. Cl2 A mole of Cl2 contains two moles of Cl. Atomic…

Q: None

A: If we have 1 L (litre) water And Water density is 1 Kg/LMass of water is = density of water * volume…

Q: . How many atoms are in 3.4 moles of Copper sample? b.How many Cr3+ ions in 1.75 mol of Cr2O3…

A: a) Given: moles of copper = 3.4 mol.

Q: Question 1 ( How many moles of sulfur ions are in 48 mol sample of Sodium sulfide? Enter your answer…

A: It is based on the concept of mole.Here we are required to find the Moles of sulphur ions present in…

Q: Q2 Calculate the moles of magnesium in 1.25 grms of magnesium. Q2a.Use the mole of magnesium in…

A: Moles from the given mass can be determined by using the formula as; Moles=Given massMolecular mass…

Q: 1. How many MOLES of sulfur tetrafluoride are present in 1.02 grams of this compound ? moles. 2. How…

A:

Q: 1. NANOS Element # atoms Atomic mass (g/mol) Total (g/mol) Na Total Molar mass 2. LIAIH, Element #…

A:

Q: 1.ln the preparation of aspirin, 6.0 grams of salicylic acid was made to react with acetic anhydride…

A: Solving only first question in accordance with the guidelines. We will write equation and then…

Q: Determine the mass of 1.2 * 1025 molecules of carbon dioxide.

A:

Q: How many N atoms are present are in a 3.13 ng sample of nitrobenzene, c6h5no2? Answer should be in…

A: Given,mass of nitrobenzene ( C6H5NO2 ) = 3.13 ng

Q: f you have a 456 g sample of KMnO4, how many formula units of KMnO4 are in the sample? Answer in…

A: Given : Mass of KMnO4 = 456 g

Q: Calculate the number of N atoms in 0.549 mg of NH4NO2. Answer in scientific notation

A: We have to calculate the number of N atoms in 0.549 mg of NH4NO2.

Q: 1. Thought Question: Determine the % composition of each element in the following compound. Al(NO;)3…

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

Q: How many moles of propylene (C3H6) are in 25.0 of the substance?

A: When given mass is devided by its molar  mass then number of mole is obtained.

Q: 1. How many MOLECULES of sulfur dioxide are present in 1.31 moles of this compound ? molecules. 2.…

A:

Q: 6. How many moles of particles are present upon dissolving one mole of each of the compounds below?…

A: upon disolving ionic compounds dissociates into its ionic form where as non ionic do not diisociate…

Q: Question 7) A vat holds 25 pounds of ethanol. How many moles of ethanol does the vat contain? Round…

A:

Q: DON'T use Ai for answering this

A: In doing the calculations, here are the steps: Step 1: Convert the mass of ammonium carbonate to…

Q: v moles a

A:

Q: None

A:

Q: rainstorming space: (what you need to know/figure out in order to give a good hypothesis).…

A: Suppose:- Thickness of aluminium foil is = 1cm Width of aluminium foil = 2cm Length of aluminium…

Q: What number of molecules (or formula units) are present in 8.26 g of each of the following…

A: Given- Weight of substance=8.26g

Q: How many moles are present in 10.0 grams of sodium hydroxide (NAOH)? moles

A:

Q: How many grams of H2SO4 are present in 9.4*1024 formula units of H2SO4 ? Round your answer to 1…

A: Given:- No of formula units of H2SO4 = 9.4 * 1024 Mass of H2SO4 present = ?

Q: Calculate the mass in grams of 0.167 moles of lithium hydroxide.  Report your to answer to 2 decimal…

A:

Q: I juat dont know how to approach number 85.  They dont give a temp.  Do i assume , say, 273 kelvn to…

A: The flask contains hydrogen and nitrogen gas that are separated by a stopcock fitted in between the…

Q: Use the equation below to determine the limiting reactant. Mg (s) + 2 HC1 (aq) → MgCl, (aq) + H2 (g)…

A: To solve this problem we have to consider the    stoichiometric ratio of  given   balanced chemical…

Q: 5. How many formula units are there in 90.0 g of Mg(OH)2?

A: No of formula unit can be calculated by dividing the given weight and weight of one formula unit.

Q: How many moles are in 9.50 g of CO,?

A: Given :- mass of CO2 = 9.50 g  To calculate:- number of moles of CO2

Q: Hello,   Having some difficulty with moles and GAM and converting between them and finding how many…

A:

Q: USE e Relerences to sccess important values if needed for this questiom. What would you multiply…

A: To Find: TTo find what would you multiply "grams of aluminum"  to get the units "moles of aluminum".…

Q: 4. Calculate the molar mass of aluminum nitrate, Al(NO3)3. g/mol Your answer should be rounded to…

A: Atomic masses Atomic mass of Al=26.982g/mol Atomic mass of N=14.007g/mol Atomic mass of…

Q: Mole problem (Chemistry), Please show all calculation: How many formula units of lead (II)…

A:

Q: Calculate the mass in grams of 0.167 moles of lithium hydroxide.

A: Given data,Moles of LiOH=0.167molAtomic mass of Li=6.941g/molAtomic mass of O=16g/molAtomic mass of…

Q: One mole of silver contains _ _ _ _ _ _ _ _ _ _ _ _ _ _atoms of silver.

A: Ome mole of any compound has the avogadro no of atoms . Now the molecular weight of the compound is…

Q: (D)What is the mass of a mole of football? How does this compare to the mass of the earth? (i.e.,…

A: D) Given: 1 mole of football.

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.