The number of ammonia (NH3) molecules present in 4.85 grams of NH3is: a.1.02 x 10^25 c. 1.72 x 10^23 b.2.92 x 10^24 d. 6.02 x 10^2

Q: How many grams are in 4.35 x 1021 molecules of water (H2O). Show work!

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Q: Part A Copper(II) fluoride contains 37.42% F by mass. Use this percentage to calculate the mass of…

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Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

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Q: 88. There is 60.0% oxygen by mass in a certain compound of sulfur and oxygen. Percent by mass is a…

A: Solution ) in this question the compound have sulfur and oxygen. The amount of oxygen is 60% of…

Q: It requires two sticks of butter to make a batch of 20 cookies. How much butter will it take to make…

A: Simple use of unitary method to solve this problem

Q: seous methane (CH4) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) and…

A: CH4(g) + 2O2(g) -----> CO2(g) + 2H2O(g) Mass of CH4= 11.4 g Mass of O2 = 13 g Molar mass of CH4=…

Q: Part A Consider the reaction: 8H2S(g) + 402 (g)-→8H20(g) + S8(g) Find A[O2]/At. A[H2S]/At =…

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Q: Compound A has a density of 4.5 g/cm3. Suppose you plan to mix 197 g Element A (18.9 g/cm3) with…

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Q: Assume that the molar mass of A is 82.93 grams per mole and the molar mass of E is 24.61 grams per…

A: Atoms are the smallest unit of the matter, anything which occupies space and has mass is known as…

Q: Chloroform, CHC13, reacts with chlorine, C12, to form carbon tetrachloride, CO14, and hydrogen.1…

A: Molar mass of CHCl3 - 119.5 g/mol Molar mass of Cl2 - 71 g/mol Molar mass of CCl4 - 154 g/mol Given,…

Q: How many grams O in 283.0 g Fe(OH)g? Molar mass of Fe(OH)g is 106.867 Hint: 1 mole Fe(OH)g has 3 mol…

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Q: (a) Determine the mass of sodium metal that contains the same number of moles as 87.2 g of copper…

A: (a) Determine the mass of sodium metal that contains the same number of moles as 87.2 g of copper…

Q: What is the mass of oxygen in 1 g of glutamine

A: Structure of glutamine is shown in image. It is a basic amino acid.  It's molecular weight is 146.14…

Q: What mass of chlorine is contained in 80.3 g of ZnCl2?

A: %w/w = (mass of chlorine in ZnCl2/mass of ZnCl2) × 100

Q: how many grams of chlorine are created when 56 grams of sodium chloride decomposes?

A: Decomposition reaction of sodium chloride produces sodium metal and Chlorine gas.

Q: (d) you (e) HCI - 80°C (f) HBr 40 °C

A: The complete chemical reaction with proper reactants and products are given in a attached image.

Q: 6. Calculate The scientist repeats the experiment, burning a new sample of steel wool until it is…

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Q: Balance the following equations and indicate whether theyare combination, decomposition, or…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Magnesium, Mg, reacts with sulfuric acid, H2SO4, according to the following chemical reaction. How…

A: A mole is defined as 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or…

Q: How many carbon atoms are present in 5.98 moles of carbon atoms? Give your answer in scientific…

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Q: Match the letter/s that correspond to the descriptions in the given numbers: A.chemical equation AB.…

A: In a chemical reaction, reactants give products and in a balanced chemical equation, the number of…

Q: how many mg does a 433 kg sample contain? Please answer in unit converstion form.

A: As we know, 1kg = 106 mg

Q: How many carbon atoms are present in 3.95 moles of carbon atoms? Give your answer in scientific…

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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: Sodium chloride is 39.34% sodium. What mass of sodium chloride will contain 2.00g of chlorine.…

A: Sodium chloride (NaCl) is a compound made of sodium (Na) and chloride (Cl).Given here, mass% Na in…

Q: The number of moles(correct significant figures) in 10.0 grams of CO2 is:

A: Moles of particular compound can be calculated by dividing its mass by its molar mass. Molar mass of…

Q: Find the number of moles in 3.70 x 10^-1 g of boron

A: Grams of Boron = 3.70 × 10-1  gNo of moles of Boron =  To be determined Molar Mass of boron = 10.81…

Q: Under certain conditions, the substances zinc oxide and water combine to form zinc hydroxide. If…

A: GivenMass of Zinc Oxide = 26.7 gMolar mass of Zinc Oxide = 81.38 g/moleMoles of Zinc Oxide = Mass of…

Q: 47.9 grams of nitric acid are reacted with 39.3 grams of potassium sulfate. How much nitrate can be…

A: Consider the given information is as follows; Mass of nitric acid HNO3 = 47.9 g Mass of potassium…

Q: A sample of a compound has a mass of 41.13g. The sample is found to contain 37.28 g of carbon and…

A: Answer: option 2) 90.6% Carbon and 9.4% Hydrogen

Q: Balance each reaction and write its reaction quotient, Q꜀:

A: Reaction quotient is defined as the product of concentration of products divided by the product of…

Q: What is the weight in grams of 3.74x 10^16 CF, molecules? Hint: must use Avogadro's number Put your…

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Q: If an experiment theoretically yields 4.65 grams of X but actually yields 7.54 grams of X, what is…

A: While performing experiments including synthesis, Percentage yield helps to calculate and compare…

Q: The mole is a really helpful way to count really small things. Are there other methods we use to…

A: Answer is explained below.

Q: 15.Avogadro's number owes its name to a) Calculations made by Amadeo Avogadro. b) Calculations made…

A: Since we know that Avogadro's number is the particals in one mole of a substance . It named after a…

Q: What is the weight in grams of 8.68 x 10^17 CF, molecules? Hint: must use Avogadro's number Put your…

A: NOTE: The chemical formula of the compound given is missing the subscript. It will be CF4 and not…

Q: Convert 56 grams of water to moles.

A: The number of moles(n) of a substance can be determined by the following equation n=wM where w=…

Q: The number of molecules in 0.556g of PF6 is

A: We have given that Mass of PF6 = 0.556g Molar mass of PF6 = 144.9642 g/mole No. of mole of PF6 =…

Q: A) 6.81 x 1022 molecules B) 3.40 x 1022 molecules C) 8.91 x 1022 molecules D) 1.75 x 1022 molecules…

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Q: Hudrobromic acid t Potossium hydrovide7 Potassium bromide t HeO 70.50 M) (150m) (0.35M)( 295ml)…

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Liquid heptane, C,H,6 , burns in oxygen gas to yield carbon dioxide and water. What mass of carbon…

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Q: 1. What does the mole measure? a. mass of a substance b. volume of a substance c. density of a…

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Q: What is the weight in grams of 3.74 x 10^16 CF, molecules? Hint: must use Avogadro's number Put your…

A:

Q: 4. One mole is equivalent to a. 3.75 g Hydrogen c. 16 g Oxygen b. 14 g Carbon d. 190 g Gold 5. What…

A: Answer  4 ) one mole is equivalent to        c) 16g  oxygen  1 mol is  equal to 6.022×1023 (…

Q: Ocean water contains 3.4 sodium chloride by mass. What made of ocean water in gram contains 13.2 g…

A: Number of moles of a chemical compound is used to measure the amount of compound in the given…

Q: How many GRAMS of sodium are present in 1.41 grams of sodium chloride, NaCl ? ____grams sodium How…

A: Given,Mass of sodium chloride, NaCl = 1.41 gMoles of NaCl can be calculated as:

Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 × 10²7 g. Use this information to…

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Q: A chemist weighed out 20.3 g of sodium. Calculate the number of moles of sodium she weighed out. Be…

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Q: C MOLE AND MASS RATIO P

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Q: Compare and contrast the following terms: “a mole” (as it is used in chemistry) and “a dozen” Give…

A: Mole is the quantity equal to 6.022×1023 which means 1 mole of something  means 6.022×1023 particles…

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".