mothball, composed of naphthalene (C10H8C10H8), has a mass of 1.48 gg . How many naphthalene molecules does it contain?

Q: Calculate ΔG° for each reaction using ΔG°(f) values:

A: (a)

Q: a) How many grams of carbon are in 34 g of C3H8 propane? b) How many grams of hydrogen are in 0.254…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

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

A:

Q: How many MOLECULES of water are present in 9.27 grams of this compound? A 3.10 x 1023 molecules H20…

A: Given that: Mass of water = 9.27 g Molar mass of H2O = 18g/mol Moles of water = 9.27g÷18g/mol =…

Q: Which has a higher percentage of chlorine: Freon-12 (CCl2F2) or Freon-141b (C2H3Cl2F)

A: Percentage of chlorine = (mass of chlorine in compound/mass of compound) × 100%

Q: Consider aspirin (acetylsalicylic acid), C9H8O4 a. How much does one mole of aspirin weigh, in…

A: The formula of aspirin given is C9H8O4.

Q: 2NaCl + 1 Br2 → 2 NaBr + 1 Cl2     How many moles of NaCl are there in 99 grams of NaCl?  If you…

A: a) Given, Given mass of NaCl = 99 grams b) Given, Amount of NaCl is 31 grams c) Given, Amount of…

Q: (a) 2CH4(g) + 2CO2(g) CH4(g) + 2H0(g) + 2CO (g) (b) CO2(g) + 3H;(g) → CH;OH(g) + H2O(g) (c)…

A:

Q: How many atoms of oxygen are present in 12.5g of nitrogen dioxide?

A: Given: Mass of nitrogen dioxide (NO2) is 12.5 g. To find: Number of oxygen atoms.

Q: Solve the attached Problem.

A: The Reaction of carbonyl compound with Grignard reagent gives alcohol which undergoes to dehydration…

Q: Co(NO3)2

A: a) First find out the moles of Co(NO3)2 :  moles = ( formula unit / Avogadro number )  Moles = (…

Q: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose(table sugar) when…

A: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose(table sugar) when…

Q: . Vitamin C has the formula c6h8o6. Calculate the number of vitamin C molecule present in 0.250g of…

A: Applying formula  Mole = gram weight/molecular weight

Q: What is the mass of carbon present in 0.196 grams of propane (C3H8)?

A:

Q: a) Determine the mass of O is that combined with 3.00 g of N in NO and NO2. b) Describe that NO and…

A: Two questions based on general chemistry, which are to be accomplished.

Q: Which of the following does NOT describe 44.0 g of propane, C3H8? a) the amount of propane that…

A: The number of moles of propane, C3H8, equivalent to 44.0 g of propane is; nC3H8=mC3H8MMC3H8=44.0…

Q: 1 mole of 63Cu atoms has a mass of about 63 grams. Explain why the number below Cu on the periodic…

A:

Q: 1. How many MOLECULES of nitrogen trifluoride are present in 5.36 grams of this compound? molecules.…

A:

Q: Vitamin C has the formula C6H8O6. Calculate the number of vitamin C molecules present in a 0.250-g…

A: Vitamin C, also called ascorbic acid, seems to be a water-soluble vitamin contained in citrus fruits…

Q: Determine the number of C atoms in 0.01 g of Caffeine C8H10N4O2

A:

Q: A particular recipe calls for 342 grams of sucrose (C12H22011). How many moles of sucrose are in…

A:

Q: how many grams of H2O will contain 9.50x10^24 hydrogen atoms?

A: Given: H2O water molecule 9.50x1024 hydrogen atoms 2 H atoms are present in one mole of H2O. That is…

Q: How many MOLECULES of water are present in 9.27 grams of this compound? (A) 2.80 x 1032 molecules…

A:

Q: contains 2.3 g of iron?

A: Mass can be defined as the quantity of matter present in a matter. The matter may be liquid, solid,…

Q: The density of octane, C8H18C8⁢H18, is 0.703 g/mL0.703 g/mL. Calculate the number of moles of octane…

A: Given Data :  1.density of octane = 0.703 g/mL  2. Volume = 49.1 mL  Molar mass of octane = 114.23…

Q: 2)  Calculate the number of grams of H2 that could be made from the 84.06 g sample of NH3.

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

Q: 4) Vitamin B3, also known as niacin, helps maintain the normal function of the skin, nerves, and…

A: To calculate the mass of niacin which consists of an equivalent number of moles as 100 mg of…

Q: A sample of oxygen has a mass of 25.2 grams. How many O atoms are there in the sample?  atoms How…

A: Calculation given as follows

Q: C6H6(1) + O2(g) → H20(g) + CO2(g)

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

Q: Vitamin C has the formula C6H8O6. Calculate the number of vitamin C molecules present in a 0.250-g…

A: Number of moles is given by the ratio of mass of the substance to that of the molecular mass. 1 mole…

Q: 1. ____N2 + 3H2 ____NH3

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: Question is attached

A: It is given that the molecular formula of the artificial sweetener i.e. aspartame is C14H18N2O5, To…

Q: The formula for sulfur dioxide is . A. How many molecules are in 2.64 grams of sulfur dioxide?…

A: The formula for Sulfur dioxide is :                    SO2 Given:For part Agiven mass of SO2…

Q: High fructose corn syrup (HFCS) is a sweetener that was designed in the 1970s, which takes corn…

A: Given, Amount of HFCS used = 67.5 g Percentage of fructose molecules =55.1 % Percentage of glucose…

Q: How many MOLECULES of water ,H2O , are present in 8.93 grams of this compound? _____ molecules How…

A: a. It is given that the mass of water molecule is 8.93 g.Thus, the number of moles of water can be…

Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. What quantity in molecules of C₆H₈O₆ does a…

A: To find molecules of vitamin C, first convert mass in grams then divide it by molar mass to get its…

Q: 1. Vitamin C has the formula C,H,Og. Calculate the number of vitamin C molecules present in a 0.250…

A: 2.) We are having 0.1 g of caffeine (C8H10N4O2) Molar mass of caffeine  = 194.2 g/mol

Q: 1. How many ATOMS of nitrogen are present in 6.28 grams of dinitrogen tetrafluoride ? atoms of…

A: The molecular formula of dinitrogen tetrafluoride is:-  N2F4 Avogadro number is 6.022×1023 The molar…

Q: 1. How many MOLECULES of dinitrogen monoxide are present in 8.04 grams of this compound ? molecules.…

A: Here we have to determine number of molecules and number of grams present in 8.04 grams and…

Q: The number of hydrogen atoms in 0.500g of glucose (C6H12O6) is a. 12 b. 1.67x1021 c. 2.78x10-3 d.…

A:

Q: Tin (ii) fluoride (SnF2) is added to toothpaste to prevent tooth decay. What mass of F in grams is…

A: The mass of Tin (ii) fluoride (SnF2) is = 7.76 g The mass of fluorine in gram is =?

Q: How many oxygen atoms are there in 1.50*10^23 molecules of SO3? How many grams of sulfur are…

A: One mole of a substance consist of 6.022 × 10²³ units (such as atoms, molecules, or ions) of that…

Q: An aspirin tablet contains 0.325g of C9H8O4. A) How many molecules of C9H8O4 does it contain? B)…

A: Given: Mass of C9H8O4 = 0.325 g.

Q: 4. Which of the following is not a correct description of 16.0 grams of methane, CH₂? A. It is one…

A: One mole compound has a mass equal to the molar mass of the compound. 1 mole of substance contain…

Q: The formula for boron trichloride is BCl3. A. How many molecules are in 9.31 grams of boron…

A: Molecular formula of Boron trichloride is BCl3. It has three Chlorine atom and one boron atom. Molar…

Q: Which of the following can be used mole as a unit to count paticles/atoms? A. Pharmaceutical…

A: No. Of moles refers to the amount of no. Of atoms or particles with respect to its standard units.…

Q: 4) Vitamin B3, also known as niacin, helps maintain the normal function of the skin, nerves, and…

A: Vitamin B3 also known as niacine.Of formula C6H5NO2.Tablets contains vitamin B3 or C6H6N2O.…

Q: How many glucose molecules are there in a 90.0 g sample of glucose (CH12O? Select one: O a. 3.01 x…

A:

Q: Compound Quantity Density Molecular weight 0.789 Ethanol 2.2 mL g/mL 46.07 g/mol 1.049 g/mL Acetic…

A: Answer :-  Moles of Ethyl Acetate, CH3COOC2H5 = 0.0377 mol…

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".