How many moles are in 2.45 x 10^23 molecules of Na2S?

Q: How many molecules of carbon monoxide, CO,  are there in 7.59 moles of carbon monoxide?

A: One mole of any substance has 6.023*e+23 molecules. It is also called Avagadro number

Q: I figured out that .0068 moles CaCl2x2H2O are present in 1.00g CaCl2x2H2O. My next question is "How…

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Q: If 10. g of carbon dioxide are involved in the Grignard reaction, how many moles of carbon dioxide…

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Q: How many moles of cobalt (Co) atoms are there in 6.00 × 10° (6.00 billion) Co atoms? x 10 mol Enter…

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Q: The chemical formula for zinc nitrate is: (ZnNO3)2 Calculate the molar mass of zinc nitrate. Round…

A: The chemical formula for Zinc nitrate is Zn(NO3)2.

Q: How many grams of Mg3(PO4)2 are there in 2.9 moles of Mg3(PO4)2 ? Round your answer to 2 decimals.…

A: Given compound is: Mg3(PO4)2 What is the mass of 2.9mol. of Mg3(PO4)2?

Q: what do you have to do to convert from volume to moles ?  Answer Choices  molar mass(g) / 1mol 1…

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Q: Calculate the moles of CuCu in 8.2×1021 atoms of CuCu.   Express your answer using two significant…

A: Number of Copper atoms present = 8.2x1021 We know that, 1 mole of atoms contain= 6.023x 1023 atoms.…

Q: Be sure to answer all parts. How many moles of cobalt (Co) atoms are there in 9.00 x 10° (9.00…

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Q: Using the following equation: 2 N2 (g) + 5 O2 (g) --> 2 N205 (g) How many grams of N2 are needed to…

A: Given information, Mass of O2 = 185.6 g The mole ratio between N2 and O2 is 2 : 5.

Q: Calculate how many grams of chlorine gas are in 7.099 x 1023 atoms of chlorine gas

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Q: How many molecules are present in one mole of water, H2O? Express your answer in scientific…

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: How many moles of NaOH are in 2.2x1025 formula units of NaOH? Round your answer to 1 decimal place.

A: Given data,  Formula units of NaOH = 2.2 × 1025  Formula units of 1 mole NaOH = 6.022 × 1023

Q: Which of the gases in the graph below has the largest molar mass? Explain your answer.

A: This graph the variation of molecular speed with relative number of particles.

Q: How many moles are in 105 g of K? Use 2 decimal places in your molar mass for the calculation.…

A: Mass of K (potassium) = 105 g  And as molar mass of K (potassium) = 39.09 gmol-1   Use formula for…

Q: How many moles are present in 25.0 grams of potassium permanganate, KMNO4? moles Your answer should…

A: Molar mass Calculation molar mass of KMnO4 = (39.098+54.938+16×4)g/mol =158.036 g/mol Atomic mass of…

Q: Given the equation 2 NH3 -> N2 + 3 H2, convert 7.46 mol N2 to moles of H2. Round to the nearest…

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Q: How many grams are in 7.22 mol of HF? Express your answer to three significant figures.

A: We would use molar mass of HF to calculate mass in grams in given moles of HF.

Q: molecules

A: Molar mass of P4O10 Molecule = 284gmol-1    Moles of P4O10 Molecule = ( mass / molar mass )  Moles…

Q: moles

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Q: (The formula in this problem may not be a real molecule.) How many grams of hydrogen atoms are…

A: Given: The formula of the compound = C3H7 We have to find the mass of hydrogen atoms in the sample…

Q: Be sure to answer all parts. How many moles of cobalt (Co) atoms are there in 3.00 x 10° (3.00…

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

Q: How many moles of sodium chloride (NaCl) are in (7.89x10^-41) molecules of sodium chloride (NaCl)?…

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Q: Calculate the mass in grams of 3.96 x 1024 molecules of dichlorine hexaoxide. Enter your answer in…

A: The compound given is dichlorine hexaoxide. From the name we can see that the compound will have 2…

Q: How many moles of Al atoms are present in 5.96 · 1018 Al(ClO3)3●6H2O formula units? Express your…

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Q: Maggie filtered out a sample of copper (II) chloride, CuCl2 from a local pond, and found its mass to…

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Q: The chemical formula for diethyl sulfoxide is: (CH,CH,), SO Calculate the molar mass of diethyl…

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Q: Convert 2.59 mol NaCl to moles of CaCl2, using the equation given below. Round to the nearest 0.01,…

A: Balanced chemical equation is a chemical equation which all the atoms of the elements involved in…

Q: Calculate the number of LiLi atoms in 8.5 moles of LiLi.   Express your answer using two significant…

A: Answer:- This question is answered by using the simple concept of calculation of number of atoms…

Q: Which is the larger quantity, 125.67 g of sodium acetate, NaC2H3O2, or 1.41 mol of sodium acetate?

A: Given :-  Amount of NaC2H3O2 = 125.67 g  Number of moles of NaC2H3O2 = 1.41 mol  To determine :-…

Q: How many moles of NO2 are in 5.2x10^26 molecules of NO2 ? Round your answer to 1 decimal place.…

A: Given: Molecules = 5.2×1026  To find: The number of moles

Q: Aluminum has a density of 2.70 g/cm3. How many moles of aluminum are in a 13.2 cm3 block of the…

A: Density: Density of a substance is its amount of mass per unit volume.So, density is the property…

Q: How many moles are in 1.06 x1020 atoms of iron?

A: Given :- number of atoms of iron = 1.06 x1020 atoms  To calculate :- number of moles of iron

Q: Be sure to answer all parts. How many molecules of ethane (C,H) are present in 0.318 g of C,Hg? x 10…

A: Given Mass of ethane = 0.318 g Standard value Molar mass of ethane = 30 g/mol

Q: In the following reaction, 2H2 (g) + O2 (g) → 2 H20 (g), how many moles of oxygen (O2) would be…

A: Given data contains, Moles of hydrogen is 17.8 moles.

Q: Question 9: Use the Periodic Table attached below and report your answer with the correct…

A: Given values-> Number of molecules of O2 = 17.49 × 10^23

Q: What does “1 Molar” (1M) mean?

A: Concentration of a solution is expressed in different ways such as  Molarity (M)  Normality (N)…

Q: How many bananas are in 0.10 moles of bananas? 3.0 x 1023 3.0x 10 21 6.0 x 1022 6.0x 1024

A: Given,  Moles of bananas = 0.10 moles To find, molecules of bananas??

Q: What is the mass in grams of 250 liters of oxygen gas, O2? Answer the equation in the format in the…

A: One mole of any gas contains 22.4 literof volume.

Q: You have a beaker. The mass of the empty beaker is 5.6781 g. You transfer CuCl2 crystals to the…

A: Number of moles can be calculated by dividing mass by molar mass. Number of moles = Mass / Molar…

Q: How many moles are co Type in answers without units, using scientific notation-include three decimal…

A: Since you have asked multiple questions, we are solving first question for you. For remaining…

Q: Be sure to answer all parts. Potassium is the second most abundant metal in the human body.…

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Q: How many moles of Al2(CO3)3 are there in 127 g of Al2(CO3)3 ? Round your answe to 2 decimals. Your…

A: The formula mass of a substance is the sum of the average atomic masses of each atom represented in…

Q: How many picoliters of water are in 3.32 mol of water? The answer must be 5.98 x 10^10 pL H2O how…

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Q: Calculate the number of O atoms in 0.0985 g of  CaSO4 · 2H2O Help i have no idea how to solve this.…

A: Given,0.0985 g of CaSO4. 2H2OMolar mass of CaSO4. 2H2O is 172.1712 g/mol.

Q: Convert 5.70 mol NaCl to moles of CaCl2, using the equation given below. Round to the nearest 0.01,…

A: The balanced chemical equation is: 2 Na3PO4 + 3 CaCl2 ---> Ca3(PO4)2 + 6 NaCl

Q: An anhydrous (water removed) salt has a formula mass of 159.265 g/mol. If the hydrated version of…

A: Formula mass of salt = 159.265 g/mol Moles of water per mole of salt = 5 mole We need to determine…

Q: Convert 4.49 mol NaCl to moles of CaCl2, using the equation given below. Round to the nearest 0.01,…

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

Q: What is the molar mass of lead (II) chloride?  Report your answer to 2 decimal places!

A: Molar mass: Molar mass or molecular weight of a compound is the sum of total mass in grams of all…

Q: QUESTION 9 How many moles of H20 are in a sample with a mass of 14.9 grams? Report your answer to 3…

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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.