1) How many atoms does each molecule of H,SO, has? A) 8 B) 6 C) 7 2) A compound of carbon and hydrogen contains 84.1% C and 15.9% Hand has a molar mas of 1142 g/mol. What

Q: 11.6 g Fe2(SO4)3  contains how many grams of sulfur?

A: The compound given is Fe2(SO4)3  Hence molar mass of compound = Atomic mass of Fe X 2 + Atomic mass…

Q: How many moles of calcium are in 0.500g of calcium?

A: Given  Mass of Calcium=0.500 g We need to calculate the moles of Calcium.

Q: 3) The molar mass of Cu (CO3)2.3H20is: 237.562 g/mol a) b) 183.53 g/mol 201.53 g/mol 160.88 g/mol c)…

A:

Q: 3.) Calculate the moles of KHP in flask #3. grams KHP Molar Mass of KHP (АЗ) 204.22 g/mol moles KHP…

A: Moles - One mole means 6.022 x 1023 number of that compound.  It is found that the molecular mass…

Q: Be sure to answer all parts. The interhalogen compound CIF3 reacts with NH3 to produce three…

A: Given, 2NH3 + 2ClF3 → 6HF + N2 + Cl2 mass of NH3 react = 29.0g mass of ClF3 react = 170.4 g mass of…

Q: A 3.75-g sample of limestone (CaCO3) contains 1.80 g of oxygen and 0.450 g of carbon. What is the…

A: Given,Mass of a sample of limestone, CaCO3 = 3.75 gMass of oxygen in this sample = 1.80 gMass of…

Q: CHEMWORK Vitamin B17, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: Molecular formula of cyanocobalamin is C63H88CoN14O14P. Calculation of molar mass: Molar…

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A: In the given question, we have to find number of carbon atoms in first and moles of bromine in…

Q: How many moles of Hydrogen do you have you have 5.68 x 10 ^ 24 Hydrogen atoms? a)  .9432 x 10 ^-1…

A: 1 mole hydrogen atoms contains 6.023 x 1023 atoms of hydrogen.

Q: Q.2 CaCl₂ is used to melt ice on roads. When 1 mole of CaCl, is dissolved in water, how many moles…

A: Calcium chloride dissolves in water to produce calcium ion and chloride ion.CaCl2 (s)

Q: RUN 1 RUN 2 Mass Mg (mg): Mass Mg (mg): Moles Mg (mol): Moles Mg (mol): AT (°C): AT (°C): Heat…

A: Experiment Mass of Mg (mg) Initial temperature ( oC) Final temperature ( oC) 1 19.8 19.1 32.9 2…

Q: mol Ti6Al4V contains    ? mol Ti,   ? mol Al  and    ? mol V.

A: Alloys are made by mixing two or more elements , at least one element should be metal.

Q: CALCULATE TH EMASS IN GRAMS OF 1.11 MOL OF CH4-

A: Given:   The number of moles of CH4 is 1.11 mol. The molar mass of CH4 is 16.04 g/mol.

Q: What is the percent composition of silver nitrate, AgNO3?

A: % composition = n× atomic mass×100/molar mass n= number of atoms

Q: A compound has a molar mass of approximately 180 g/mol and a percent composition of 40.00% C, 6.72%…

A: Given, Mass percent of components in the compound are: % C = 40.00% % H = 6.72%  and % O =…

Q: What is the molar mass of H2SO4? (Molar mass of H = 1.0079 g/mol; S = 32.065 g/mol; O = 15.999…

A: 6.022×1023 = 1 mole = Avogadro Number Molar mass :-  The mass of one mole of atoms or molecules is…

Q: If the student used 3.103 g of MoOs, how many moles of MoO3 were present?

A:

Q: calulate the mass percent of magnesium (Mg) in magnesium nitride (Mg3N2)

A: Mass percentage of an element can be calculated by the division of mass of the element by the total…

Q: Calculate number of moles for the following quantities: a) 1.29 g NaOH b) 4.50 g NaCl c) 50.0 g…

A:

Q: Calculate the number of moles present in the 48.4 g of a KCl sample. A)Number of moles of KCl is…

A: The number of moles of a given species in the given sample is calculated by the expression (1). In…

Q: ste and smell) natural flavor based on its elementa tion. C 58.80%, H 9.87%, O 31.33% 0₁ H9.791.958…

A: If mass of compound is 100 g. Mass of C = 58.80 g Moles of C = 58.80/12 =4.90 mol Mass of H = 9.87 g…

Q: 27. Calculate the percent composition of each to four significant figures: (a) NaHCO3 (b) Na2CO3

A: Percentage composition of each of the element in the given compound is determined by the following…

Q: (a) Determine the mass in grams of 4.23 moles of glucose (C,H1206). g CH1206 (b) Determine the…

A: Number of moles is the ratio of given mass of the substance to the molecular mass of the substance.

Q: EF and MF

A:

Q: 3) кон + Н,РО, > _K3PO4 + H20 21.44 mols of H3PO, makes how many mols of KgPO,?

A: Given Number of mole of H3PO4  =   21.44 mole  Number of mole of K3PO4   =  ?

Q: ure to K (Ke vin). (Use the 3 atoms of alu ninum weigh

A: Both the Fahrenheit and Kelvin are units of temperature, Kelvin is SI unit of temperature.

Q: An experiment requires that enough PNCl2 be used to yield 10.3 g of chlorine. How much PNCl2 must be…

A: Answer: 16.84 g

Q: Ihave 15.005 mg of NaOH. How many atoms do I have? (2 sig fig)

A: Given, Mass of NaOH = 15.005mg

Q: Which has more hydrogen atoms? A mole of CH4 or two moles of H2? Provide an explanation.

A: Interpretation: Which has more hydrogen atoms, a mole of CH4 or two moles of H2 is to be determined.

Q: A sample of a compound containing only magnesium and oxygen is found to have 194g Mg and 256g of O.…

A: Atomic percentage calculationThe atom percentage of a compound is calculate taking the %ratio of…

Q: What is the amount (moles) of pure substance in 10.7 g of aluminum? Assume the molar mass of…

A: Ratio of given mass of an element to the molar mass of the element is known as number of moles of…

Q: Suppose you have two samples that are equal in weight, 11.8 g Ti and 11.8 g Fe,O,. Calculate the…

A:

Q: 10) 9.50 x 102 atoms of C

A: Number of moles of the substance is equal to the ratio of number of atoms and Avogadro's number.