mass of sample moles of sample molecules in sample atoms in sample 4.07 g C6H6 4.00.0522 mol 493.14e22 40 1.57e22 X 4.0 3.73 Vg 0.207 mol H20 4.0 1.25e23 4.0 6.23e22X 4.0205.53 X 9 49 4.67 X mol 2.81x1022 molecules CO2 g1.41e22 X 4.047.40 Check the number of significant figures. g 1.30 mol HCI 4.0 7.83e23 V 4.9 4.0126.5 X Check the number of significant figures. g 4.0 7.02 mol 4.23x1024 molecules H20 4.0 0.278 g CH3OH 4.0 X mol 4.05.23e21 4.0

Q: A mixture contains both potassium phosphate and potassium chloride. What is the percentage of…

A: The moles of  Cu3(PO4)2 in 0.5565 g is, number of moles=given massmolar mass…

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A:

Q: Platinum is a precious metal that is used as a catalyst for many important industrial reactions.…

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Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: 2 5 152 A 352.44 155 T 362.31 154 16 D 359.12 153 G 355.67 156 X 365.88 157 Z 369.52 You time travel…

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

Q: A container has 5.30 x 1023 molecules (aka atoms) of bromine gas. Calculate the mass (in g) of…

A: A container has 5.30 x 1023 molecules (aka atoms) of bromine gas. We have to calculate the mass (in…

Q: How many moles of C (to two decimal places) are found in 6.87 x 1024 C atoms?

A: Given,The number of carbon (C) atoms = 6.87 x 1024  C atoms.

Q: 5.00 g of copper is reacted with 5.00 g of sulfur in a crucible and a compound composed of copper…

A: Mass percentage of substance is one of the ways to express composition of compounds. Mass percentage…

Q: Using the balanced equation from Question #8, how many grams of lead will be produced if 2.54 grams…

A: Given, 2PbS + 3O2 ---------->  2Pb + 2SO3 mass of PbS react = 2.54 g mass of O2 react = 1.88 g…

Q: Using the density of argon= 1.54 g/L, how many argon atoms are present in a room with dimensions of…

A: To solve this problem first we calculate the volume of room and then we will calculate the mass of…

Q: Which of the following metals is least chemically reactive?  potassium  sodium  iron  magnesium…

A: The reactivity of s block metals are very high due to presence of just either 1 or 2 electrons in…

Q: A sample of oxygen gas weighs 28.4 g. How many atoms of oxygen are present in this sample? The…

A: Here we have told that a sample of oxygen gas is weighed at 28.4 g. Now we have to tell how many…

Q: A sample of mercury(I) nitride weighs 3.33 dg.  How many nitrogen atoms are in this sample?The…

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Q: 56.7 g of H,S reacts with 30.9 g of SO, according to this reaction + SO, 2H,S + So, = 35 + 2H,0 What…

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Q: Suppose you need 7.0 m of Grade 70 tow chain, which has a diameter of 3/8" and weighs 2.16 kg/m, to…

A: Given data :- Length of required tow chain = 7.0 mGrade of tow chain = 70 Diameter of tow chain =…

Q: What is the significance of 'atom economy'? How is this value calculated for a chemical reaction?

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Q: Platinum is a precious metal that is used as a catalyst for many important industrial reactions.…

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Q: Solid sodium oxide and gaseous water are produced by the decomposition of solid sodium hydroxide…

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Q: Use the References to access important values if needed for this question. 1A 8A H2A 3A 4A 5A 6A 7A…

A: Isoelectronic species are atoms, ions, or molecules that have the same number of electrons. In the…

Q: You have calculated the mass of Copper Sulfate in the original mixture to be 0.255 g and the mass of…

A: the mass percent of copper sulfate and sodium chloride has to be given,

Q: What is the mass in grams of 7.94 x 1015 molecules of CS,?

A:

Q: A chemist measures the amount of bromine liquid produced during an experiment. She finds that 658. g…

A: Given: Mass of bromine liquid produced - 658 g   To find: number of moles of bromine produced = ?…

Q: cond A B C D sketch of molecules in it H H C1O H-Ö C нӧ- H H :O: H H H-Ö H-Ö C H C || :0: C O: 010…

A: first, we have to find empirical formula of the given compounds

Q: You wish to prepare 210 grams of 16.3 % Mg(NO3)2 You will need grams of magnesium nitrate and mL of…

A: Given that we have to prepare a 210 grams of 16.3 % MgNO32 solution. Recall the expression of mass…

Q: Determine the mass in grams of 6.39 * 10 ^ 41 of arsenio ( mass of one mole of arsenic is 1.92 g)

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: a certain protein has a molar mas of 2.88 x 10^5 g. what is the mass of the molecule of this protein

A: Given: Molar mass  of Protein = 2.88 x 105 g.  1 mole = 6.022 X 1023  molecules

Q: Aqueous potassium nitrate (KNO3) and solid silver bromide are produced by the reaction of aqueous…

A: When aqueous potassium bromide react with aqueous silver nitrate it forms precipitate of silver…

Q: natural rubidium has the average mass of 85.4678 AMU and is composed of isotopes Rb 85 (mass =…

A: Average atomic mass = ∑i=1XiMiWhere X = mole fraction of the isotope and M is the mass of the…

Q: Use the References to access important values if needed for this question. 1A 8A H 24 3A 4A SA 6A 7A…

A: Isoelectronic species are defined as those species which contains same number of electron but having…

Q: Consider the following reaction:  4 Al + 3 O2 →  2 Al2O3 A mixture of 82.5 g of aluminum and 117 g…

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Q: Manganese(Mn) is a transition element essential for the growth of bones. What is the mass in grams…

A: Manganese is represented by atomic symbol Mn and it is a transition element. Also, it can be said…

Q: Using the balanced equation from Question #8, how many grams of lead will be produced if 2.54 grams…

A:

Q: 3.7 × 10–4 kg of atoms to micrograms (μg).

A: Given information:Mass of atoms = 3.7×10-4 kg

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4…

A: Isoelectronic compound will have same number of electrons. The ion which can show the same type of…

Q: Write the formulas of the elements that are reactants and the formulas of the compounds that are…

A: In a chemical reaction, reactants are present on left side of the arrow and products are present on…

Q: 42.161 * 1223 molecules of salt + 18.066 × 1023 molecules of sugar

A: 42.161 * 1223 molecules of salt + 18.066 × 1023 molecules of sugar  first we will convert molecules…

Q: What is the mass of 3.5 x 10^-3 molecules of copper (II) carbonate? Use correct significant figures…

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

Q: Neutralization reactions involve the hydrogen ions (H+) from an acid, reacting with a base that ofte…

A: Neutralization reactions involve the hydrogen ions (H+) from an acid, reacting with a base that…

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".