How many moles of hydrogen atoms are in a 5.5 g sample of H2 gas? [Express your answer to at least one decimal place.]

Q: What is the unit conversion required to convert 10.00g of gold to moles?

A: Molar mass of a substance means mass of one mole of a substance and it is equal to the atomic or…

Q: A 2.37 gram sample of a KCI and KCIO3 mixture was found to contain 0.01611 mol of KCIO3. What is the…

A: Mass of mixture of KCl and KClO3 = 2.37 g Number of moles of KClO3 = 0.01611 mol Molar mass of KClO3…

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: A compound contains 0.01492 moles of V and 0.03416 moles of Cl.  Calculate the ratio of moles of Cl…

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Q: How many moles of NaOH are in 8.2x10^27 formula units of NaOH? Round your answer to the 1 decimal…

A: To calculate the number of moles of NaOH are in 8.2x10^27 formula units of NaOH.

Q: How many molecules are in a 7.5L sample of H2 @ STP?  Round to 2 decimal places.

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Q: A cylinder of neon gas, Ne, contains 220.5 grams of gas. How many moles of neon gas does the sample…

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Q: Find the Mass of 3.65 x10² mole K,SO,?

A: Number of moles of K2SO4 = 3.65 × 10–2 mol  Molar mass of K2SO4 = 174.26 g/mol

Q: A mixture of gases has the following composition by mole: C2- 10% 02-75% N2- 15% What are the…

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Q: Calculate the number of moles of chlorine present in 120  g g of chlorine gas.

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Q: How many moles of CH4 are in 9.37 x 1023 molecules of CH4? Do not put units in your answer. Report…

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Q: The chemical formula for lithium hydride is LiH. A chemist determined by measurements that 0.0550…

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Q: A compound contains 0.01293 moles of V and 0.03325 moles of Cl.  Calculate the ratio of moles of Cl…

A: Record the given data, The number of moles of compound V = 0.01293 moles The number of moles of…

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Answer:- This question is answered by using the simple concept of chemical formula analysis of the…

Q: What mass of a 6.0% NaOH solution contains 12 grams of NAOH? Enter your answer in grams in the space…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: What is the mass percentage of carbon in C7H11O3? Express your answer as a percentage (i.e., out of…

A: Mass percentage of element in compound is defined as percent ratio of element mass to the whole…

Q: `Nicotine (C10H14N2), a plant alkaloid, is an oily liquid that makes up between 0.6 to 3% of a…

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Q: A compound contains 0.01238 moles of V and 0.02341 moles of Cl. Calculate the ratio of moles of Cl /…

A: A compound contains 0.01238 moles of V and 0.02341 moles of Cl. We have to calculate the ratio of…

Q: Calcium sulfateis a white crystalline powder. Gypsum is a mineral, or natural substance, it is a…

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Q: Select the quantity corresponding to 1 mole of fluorine gas. Avogadro's number of fluorine…

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

Q: Gases are sold in large cylinders at high pressure for laboratory use. If a 40.0 L cylinder of…

A: Given :-  Pressure = 735 psi  Volume = 40.0 L  Temperature = 22°C  To calculate :-  No.of O2…

Q: 2.57 g of Cu2O? Enter decim

A: In this we have to calculate the formula units of 2.57 g Cu2O . First of all we have write the molar…

Q: How many moles are in 10.0 g of NaBr?

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

Q: Find the percentage by mass of oxygen (O) in N2O3 if it is 36.9% nitrogen (N) by mass. (Round your…

A: Percentage by mass of an element in a given compound can be calculate by the formula,     percentage…

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: We have to determine the moles of H

Q: 4.35 L He/1 x 1 mole He/22.4 L He=0.19 moles He.  Explain why the final answer of 0.19 moles  makes…

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Q: Acetic acid (HC2H3O2) is diluted with water to make a solution of vinegar. You have a sample of…

A: In the given solution the amount of solute, acetic acid is = 12.3 g We know that the molar mass of…

Q: A sample of trifluoroacetic acid, C2HF3O2, contains 60.9 g of oxygen. Calculate the mass of the…

A: Sample of trifluoroacetic acid molecular weight                          = (12× 2+ 1+ 3×19+ 16×2) g…

Q: How many moles of hydrogen atoms are in a 7.6 g sample of H2 gas? [Express your answer to at least…

A: Mole is defined as unit of amount.It describes number of atoms in a substance.

Q: In the gaseous state chlorine exists as a diatomic molecule Cl2 (molar mass=70.9g/mol). Calculate…

A: Given that in In the gaseous state chlorine exists as a diatomic molecule Cl2 (molar mass=70.9g/mol)…

Q: Convert 6.76 x 1024 molecules/formula units of X4Z4 into grams of the same compound. (Assume that…

A: Molar Mass Of X4Z4 = 4 × molar mass of X + 4 × molar mass of Z = (4 × 32.75) g/mole + (4 × 51.8)…

Q: For the molecular compound phosphorus triiodide, what would you multiply "molecules of PI3" by to…

A: Answer: 1 mole PI3 =6.02 x 1023 molecules PI3 Molecules of PI31 mole PI36.02 x 1023 molecules PI3