The molar mass of a compound was determined to be 23.99 g/mol. If the sample contains 3.2 mol, then what is the mass of the sample rounded to the correct significant digits?

Q: How many molecules of sulfuric acid are in 5.00 g of sulfuric acid? Write your answer with the…

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Q: What is the mass in grams of 0.485 moles of barium (Ba)? Enter your answer in decimal form with…

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Q: What is the difference in mass between a nickel that weighs 4.8 g and a nickel that weighs 4.8673 g?

A: Given,  Mass of nickel = 4.8…

Q: 1. Water is added to the acid in the preparation of an acidic solution. 2. Calibration is the…

A: Actually, for the preparation of an acidic solution, acid should be added to the water slowly. Then…

Q: a. What is the mass of 1.49 x 1024 atoms of chlorine? grams b. What is the mass of 9.12 x 1023…

A: a) mass of 1.49×1024 atoms of chlorine.

Q: Tin reacts with oxygen to form tin oxide. In a particular laboratory experiment in which oxygen…

A:

Q: Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams,…

A: The volume of a given liquid is defined as the amount of the space occupied by the liquid that fully…

Q: The mass of a single strontium atom is 1.46x10-22 grams. How many strontium atoms would there be in…

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Q: the molar mass of acetic acid is 102.09 g/mol and has a density of 1.08 g/mL. what is the volume

A: Given -> Molar mass of acetic acid= 102.09 g/mole Density= 1.08 g/ml

Q: 7. K,CO, # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The #3 is a…

A: Molecule is made of combination of several atoms of elements. In the given scenario, we have to look…

Q: Tin reacts with oxygen to form tin oxide. In a particular laboratory experiment in which oxygen…

A: We are given different data for 3 different trials.  We have to calculate for each trials…

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

A:

Q: what is the mass in grams of 125 iron atoms?

A: Given that: Number of iron atoms = 125 Atomic mass of iron =  55.845 g/mol

Q: In a laboratory experiment, an undergraduate student collected a sample of ammonium phosphate. If…

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Q: How many quarts of gasoline are there in 248 grams of gasoline if gasoline has a density of 0.749…

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Q: How many atoms are contained in 4.1 g of carbon? How can you round this answer to 2 significant…

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of carbon atoms weigh 12 g.

Q: how many nanomoles is a 83.9 pg sample of platinum?

A: Given :- mass of Pt = 83.9 pg  To calculate :- number of nanomoles of Pt  Number of moles =…

Q: Calculate the mass of 65.0 cm3 of mercury.

A: Ans

Q: (d) 44.3 kg cobalt(I) nitrate i ! mol cobalt(lI) nitrate

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Q: What is the mass in grams of 7.80x10^15 molecules of CO?

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Q: Calculate the molar mass of an element if a 1.20 mol sample of it has a density of 2.18 g/cm3 and…

A: General chemistry.

Q: initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203 g mass of water…

A: Mass of water = 10 g Volume of water = 10 mL Density of water = ?

Q: What is the mass, in grams, of 7.940 x 1023 molecules of zinc acetate? Enter your answer with at…

A: Given number of molecules of zinc acetate=7.940×1023 Chemical formula of zinc acetate, ZnC4H6O4…

Q: A chemist determines by measurements that 0.035 moles of hydrogen gas participate in a chemical…

A: Given,  Moles of hydrogen gas participate = 0.035 mol.  The mass of hydrogen gas participate is:

Q: How many moles does 120.30 g lithium represent? Use correct significant figures and units.

A: The number of moles of an element present in a given amount is calculated by using the following…

Q: What is the mass of one atom of gold (Au)? How would you write this answer to significant figures?…

A: Atomic mass of gold is 196.96655 g/mol.

Q: Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams,…

A: Density is the ratio of mass and volume.

Q: Two samples of potassium chloride are decomposed into their constituent elements. One sample…

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Q: The density of water is 1.00 g/mL at 4 degrees celsius. How many water molecules are present in…

A: The formula for density calculation is,

Q: 8. A 141 mg sample was placed on a watch glass that has a mass of 9.203 g. What is the mass of the…

A: Given that, mass of sample=141 mg mass of watch glass= 9.203 g then,

Q: What is the mass in grams of 9.35 x 1024 molecules of CO2 ? Please express in decimal form, not…

A: Given- Molecules of CO2 = 9.35 x 1024 To find - Mass of CO2 in grams

Q: What is the mass in grams of 9.25 x 10^24 molecules of CO2? Write the answer in decimal form.

A:

Q: How many moles of Ca are there in 913 grams? Answer in decimal notation, without units, to 3…

A: • The values provided in the question are:-    i) Mass of Calcium = 913 g  ii) Molar mass of…

Q: What is the mass of 1.86x10^24 molecules of nitrogen

A: first find the no. of moles of N2  then find mass by multiply by its molar mass

Q: What is the combined mass in grams of object that have masses of 0.2000kg, 80.0g and 524mg

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Q: A chemist determines by measurements that 0.080 moles of iodine solid participate in a chemical…

A: Number of moles is calculated by dividing given mass with molecular mass.

Q: Tin reacts with oxygen to form tin oxide. In a particular laboratory experiment in which oxygen…

A: We will first find mass of sn, then mass of tin oxide. Using this we will calculate oxygen reacted.

Q: steel is an alloy of iron, carbon, and other metals, typically steel contains 2.14% carbon by mass.…

A: We have to calculate the total mass of steel sample.

Q: What is the mass of copper, g in 1.652g of copper chloride? what is the mass of chlorine g

A: Copper Chloride ( CuCl2 ) Molar mass of CuCl2 = 134.45 g/mol   1 mole CuCl2 contains ;  1 mole of…

Q: What is the mass in grams of 8.91 × 1016 chromium atoms? Put your answer in box in scientific…

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Q: Calculate the number of atoms in a 2.17 x 105 mole sample of neon. Your answer should be rounded to…

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

Q: If you have 152 g of glucose (C₆H₁₂O₆), how many moles are present? Use the correct number of…

A: Given: Mass of glucose (C₆H₁₂O₆) = 152 g Molar mass of glucose = 180.156 g/mol

Q: Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: The ratio of mass of the substance to the number of moles of the substances is known as molar mass.…

Q: Question attached

A: The weight of 136 washers and number of washers in 118 g should be calculated.

Q: grams of F are in 255 g CaF2?

A: Given: 245 g CaF2  Calculation of amount of fluorine:

Q: Stainless steel is composed of iron, manganese, chromium, and nickel. If a 2.00 g sample was…

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Q: A piece of alminum foil contains 3.6 x 1021 aluminum atoms.  1) What is the mass of the aluminum…

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Q: In its most basic form, what is significant figures? Why is it necessary to learn it? What is its…

A: Significant  figures  basically  provides the clear picture of the actual measurements which are…

Q: 4.25 x 1024 atoms N converted to grams

A: We have given the atoms of nitrogen = 4.25 × 1024 atoms Avogadro's constant = 6.022 × 1023…

Q: Calculate the number of oxygen atoms in a 120.0 g sample of dinitrogen tetroxide (N,O4). Be sure…

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

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".