(d)Using the formula Mn(ClO₄)₄ (MM = 452.74), what is the percent by mass of Cl in the compound? (e)how many moles of manganese perchlorate are in 101.3g? (f)How many moles of oxygen are in 101.3 g of manganese perchlorate

Q: (a) A compound MX2 is formed from the M²+ and X¯ ions. The compound contains 86.8% of X by mass. In…

A:

Q: Calculate (to the nearest 0.1 u) the formula mass of these compounds. (a) boron trifluoride, BF3…

A: The compounds given are BF3, SrSO4 and CCl4.

Q: 1. Use chemical symbols to generate the factor needed to convert the weight of the substance in uie…

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

Q: 2. If the mass of H4X3 is 40 g, then X must represe (1) O (2) CI (3) Kr (4) C

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Q: The molecular formula for caffeine, one of the key compounds found in coffee and tea, is C8H10N4O2.…

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Q: Fe(s) reacts with O2(g) to produce iron(III) oxide. Consider the reaction of 0.626 mol Fe with 19.20…

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Q: Calculate the mass in grams of each sample. (a) 5.94 × 1020 H,O2 molecules (b) 2.8 × 1022 SO2,…

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

Q: A binary compound of oxygen and an unknown element, x, has the formu XO and is 39.70 mass % oxygen.…

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Q: How many H atoms are there in (2.22x10^2) grams of NH3?

A: The answer to the following question is given as:

Q: 16. How many moles are contained in the following? (a) 25.0 g NaOH (b) 44.0 g Br2 (c) 0.684 g MgCl,…

A:

Q: 6. This question refers to the compound aluminum sulfate octadecahydrate, Al2(SO4)3-18H₂O. Report…

A: Note: As per our guidelines, we are supposed to answer only three subparts when multiple subparts…

Q: Which of the following setups would you use to obtain the number of O atoms in 86.8g of Cr(NO3)3?

A:

Q: 1

A: Moles of propane = ( molecules of Propane / avagadro number )  Moles of propane = ( 3.45 • 10^24 /…

Q: Compound Y contains lead and oxygen only. 15.0 g of Y was found to contain 12.99 g lead. Find out…

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Q: (a) The number of atoms in 6.95 moles of potassium.

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Q: a) What is the mass of 2.450 x 10²⁴ atoms of tungsten (# 74)? (Be sure to write your units, chemical…

A: The solution is shown in the image below-

Q: - Why do we use the "mole" in chemistry. How does it relate to the periodic table? a) What is the…

A: The relationship between mole and mass is as follows:       Mole = Mass Molar mass ⇒Mass =…

Q: 1: Find the nunber of Na" ions in 2.92 g of NasPO,

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

Q: 9. Which of the following has the greatest number of particles? (A) 9.012 g of Be (B) 1 mole of Na…

A: The no of moles is the ratio of given mass to that of molar mass of that substance.  For more than…

Q: A sample of glucose, C6H12O6, contains 1.250 x1021 carbonatoms. (a) How many atoms of hydrogen does…

A: a).

Q: Allyl sulfide (below) gives garlic its characteristic odor. Calculate (a) the mass (g) of 2.63 mol…

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Q: | 5.00 g of an organic compound was found to contain 2.73 g of carbon, 0.46 g of hydrogen and 1.81 g…

A: Given data-  total mass of organic compound = 5.00 g                            mass of Carbon…

Q: Calcium oxide (CaO), also known as quicklime, can be produced by heating calcium carbonate (CaCO3).…

A: The molecular formula of calcium oxide is CaO. It states that one molecule of calcium contains one…

Q: Calculate the number of molecules present in each of the following samples.(a) 0.800 mol acetylene,…

A:

Q: Ammonium nitrate (NH4NO3) is a common fertilizer. Agronomists base the effectiveness of fertilizers…

A: 1) The mass percent of nitrogen in ammonium nitrate has to be calculated.

Q: Just 68 a and b. Number 84

A: Since there are multiple questions, we will answer only one, that is, number 84 as question 68 is…

Q: Consider the following chemical reaction. 3 Zn(C:H:O:):(aq) + 2 Na:PO:(aq) → 6 NaC:H:O:(aq) +…

A: Given: Mass (g) of zinc acetate = 20.5 g The given reaction shows that: 3 moles zinc acetate = 1…

Q: What is the mass percent of silicon dioxide (SiO2) if you are able to separate 2.202g out of a…

A: The mass percentage of a compound in a mixture is equal to the ratio of the mass of that compound…

Q: A 2.78 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

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

Q: The compound 2,3−dimercaptopropanol (HSCH2CHSHCH2OH), commonly known as British anti-Lewisite (BAL),…

A: The molecular formula of BAL is : C3H8OS2 Molar mass of BAL = 124g. 1 mole =6.023x1023 atoms  mass%…

Q: Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects.…

A: Given molar mass of caffeine = 194.2 g/mol percentages C = 49.5℅ N = 28.9℅ H = 5.19℅ O = 16.5 ℅

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: = carbon atoms or

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Q: molecules

A:

Q: 74. A throat lozenge contains 5.0 mg of menthol, which has the formula C10H20O. How many moles of…

A: Given : 74. 1. How many moles of menthol are in 5.0 mg of menthol? 2.What is the mass in grams of…

Q: 11) What is the mass of 2.25 moles of the Zn(CIO3)2 molecule?

A: Number of moles = Mass / molar mass

Q: Seoyeon needs to determine the formula of an unknown hydrate (AB-XH2O). Given the following data:…

A: Given: Hydrated salt AB.xH2O

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".