Aluminium has a density of 2.70 | g/cm3 . How many moles of aluminum are in a 13.2 cm3 block of the metal substance?

Q: 6. 1.50 X 1024 molecules of oxygen are burned in a combustion reaction. What is the mass of O2…

A: Moles of compound from given number of molecules can be calculated as: Number of mole=given number…

Q: A fertilizer is advertised as containing 14.0% nitrogen(by mass). How much nitrogen is there in…

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Q: . How many oxygen atoms are in 76.3 g N2O4? Conversion must be set-up in one step using dimensional…

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Q: 3) What is the mole of 6.022 x 10 molecules of CO, ? A) 2 B) 3 C) 1 4) What is the molar mass of CO,…

A: 3) In this question we want to determine the moles of CO2  We know that,  moles of CO2 = ( molecules…

Q: how do i do this

A: First, determine the moles of aluminium.The molar mass of aluminium is 26.982 g/mol.

Q: 5. How many molecules are in 1 mole of TNT C,H̟N,O,? 6. How many thallium atoms in 1 mole? 7. How…

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Q: How many conversions are needed to go from mass (g) of the given to Mole (Y) of the find ?

A: We have been asked to find the no. Of steps needed to go from mass to mole of a compound.

Q: How many molecules are there in 16.3 mil of CO2?

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Q: For the chemical reaction: 2KI+Pb(NO3)2⟶PbI2+2KNO3 how many moles of lead(II) iodide will be…

A: Given. the balanced chemical equation - We know that the values of the molar mass of the compounds…

Q: How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F =19.00 g/mole

A: Number of mols = Weight in gMolecular weight in g/mol Then Weight of the substance = Number of mole…

Q: A sample of the compound shown below contains 5.22 g of nitrogen. How many grams of oxygen does it…

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Q: Given 6Li + N2  2 Li3N, Determine the number of moles of lithium required to make 46.4 g of lithium…

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Q: The chemical formula for feldspar is K₂Al₂Si₆O₁₆. How many moles of feldspar are in 669.9 grams?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: how many grams of CO2 are present in 8x10^12 molecules of CO2?

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Q: un o 8u described in this laboratory. After heating, the sample is found to weigh 2.245 grams. How…

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Q: 8.3.01 x 1023 CH₂O molecules moles CH₁₂0 9. 1.00 x 1025 Na atoms moles No

A: Here, we have to find the number of moles of C6H12O6 in 3.01×1023 C6H12O6 molecules and the number…

Q: Nickel (Ni) is a metal that is added to steel to improve its resistance to corrosion. Calculate both…

A: Given : Number of atoms of Nickel i.e Ni = 6.99 X 1020 atoms.

Q: How many atoms of Mg, O, and H are represented by the notation 3 Mg(OH)2?

A: To find: The number of atoms of Mg, O and H are represented by the notation 3 Mg (OH)2

Q: (b) The number of moles of potassium that contains 8.93 × 104 atoms. x 10 mol

A: Given  Atoms of potassium = 8.93 x 1025  To find = number of moles of potassium

Q: If you add 1.0 x 10^3 g of ethylene glycol as an antifreeze to a 4.0 kg of water in the radiator of…

A: Mass of ethylene glycol= 1.0×103 g gram molar mass of ethylene glycol =62 g  The calculation of…

Q: If i have the chemical equation Mg(s) + 2HCl(aq) ⟶ MgCl2(aq) + H2(g), how would I find the moles of…

A: We have given that  the balanced chemical equation :                    1Mg(s) + 2HCl(aq) →…

Q: A 2.25 mol sample of an element has a mass of 51.8 g. What is the molar mass?

A: The sum of the total mass in gram of the atoms present in a molecule per mole is the molar mass or…

Q: Provide answer to the following

A: Density of a particular substance is the compactness of atoms present in it. Density can be…

Q: The chemical formula for feldspar is K₂Al₂Si₆O₁₆. How many moles of feldspar are in 100.1 grams?

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Q: Consider a sample of calcium carbonate, CaCO3 (100.09 g/mol), in the form of a cube measuring 2.88.…

A: The length of the cube of calcium carbonate, CaCO3 =2.88 cm The density of the calcium carbonate,…

Q: 5. How many moles of are there in 7.4 x 10" molecules of AGNO3?

A: Given, Molecules of AgNO3 = 7.4 x 1023 Molecules Moles of AgNO3 = ?

Q: Converting Mass to Moles using Molar Mass I  A sample of chloroethane, C2H5Cl, mass of 18.5 g. What…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: How many moles of glucose can be formed from 2.53x1024 H atoms?

A: Given that: atoms of H = 2.53×1024 atoms Formula of glucose = C6H12O6 Now, it can be seen that, each…

Q: 5. Fructose (C,H,,O), a simple sugar, is commonly found in soft drinks, vegetables, fruit, and many…

A: Given: molecules of Fructose = 93.0*1023 molecules molar mass of C = 12.011 g/mol molar mass of H =…

Q: If nickel(II) formate is heated to 300 °C in the absence of air for 30 minutes, the salt decomposes…

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Q: Consider the following balanced reaction: N2(g) + 3 H2(g) 2 NH3(g) What mass of NH3 can be formed…

A: Given: Moles of H2 = 9.02 x 10-4  molesWe know that,molar mass of NH3 = 17 gThe balanced eqn…

Q: 3.01 x 1023 molecules of sucrose is _ _ _ _ _ _ _ _ _ _ _ _ _ moles of sucrose.  Why don’t you need…

A: Given : Number of molecules of sucrose = 3.01 X 1023 molecules.

Q: How many moles are in 2.3 grams of phosphorus?

A: Given:  Mass of phosphorus=2.3 g To calculate: Moles of phosphorous=?

Q: What amount (moles) is represented by each of these samples? a. 150.0 g Fe2O3 b. 10.0 mg NO2 c. 1.5…

A: a) Given : Mass of Fe2O3 = 150.0 g

Q: If 345.5 L of hydrogen gas (d = 0.0899 g/L) reacts with an excess of nitrogen gas, what mass of…

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

Q: Avogadro's number is the number of O grams in 1 mole of a compound. grams in 1 mole of an element.…

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Q: 5. For many years the recovery of gold, that is, the separation of gold from other materials,…

A: Given, 4Au+8KCN+O2+H2O→4KAu(CN)2+4KOH Gold extracted = 29.0 g moles of gold : =mass of goldmolar…

Q: If 0.164 moles of a substance weighs 32.5 g, what is the molar mass of the substance, in units of…

A: 1 mole of a substance means 6.022x1023  number of that substance.

Q: the number of moles of chlorine in 12.5 g of carbon tetrachloride?

A: Number of moles of chlorine in 12.5g of CCl4. Here first we find moles of CCl4 in 12.5g that is 0.08…

Q: What number of Fe atoms and what amount (moles) of Fe atoms are in 500.0 g of iron?

A: Number of moles of iron in the given mass of iron is calculated as:

Q: The density of carbon tetrachloride is 1.59 g/mL. How many moles are present in 50.0 mL of carbon…

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Q: For the chemical reaction 2Al+3H2+Al2(SO4)3 how many moles of hydrogen will be produced from 22.5g…

A: Given: Mass of Al = 22.5 g Molar mass of Al = 26.98 g/mol Molar mass of H2 = 2.01588 g/mol

Q: (S) For the reaction 3 H2 (g) + N2 (g) 2 NH3 (g), how many moles of ammonia will be produced from…

A: The given reaction is as follows: 3H2g+N2g→2NH3g From the stoichiometry of the  above balanced, we…

Q: A molecular formula expresses the number of each kind of atom in a molecule. For example, the…

A: Given: Mass of compound = 6.50 g Mass of CO2 = 9.53 g. Mass of H2O = 3.90 g. Molar mass of CO2 = 44…

Q: How many moles of Mg(OH)2 are present after the reaction is complete? Express your answer in moles…

A: Given 7.55 g of Mg(OH)2 reacted with 25mL of 0.195M HNO3  We have to tell the number of moles of…

Q: Q6 - Calculate the formula weight of the following molecules to three significant figures Q7…

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Q: How many moles of H2SO4 do you have if there are 1.64x10^12 molecules of H2SO4?

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Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make  103.9 grams of…

A: In chemistry, one mole can be defined as quantity containing particles equivalent to 6.023 × 1023…

Q: help

A: Determine number of moles of aluminum:

Q: 25.If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A: Given data Moles of substance = 0.274 mol weight of substance = 62.5 g find out the molar mass of…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".