A 3.000 g sample of a gaseous compound was found to contain 2.560 g of carbon and  0.440 g of hydrogen. A) What is the simplest formula of the compound (Write C first and then H)? You won't be able to make the numbers a subscript. For instance, for MgCl2 enter MgCl2.  B) The molar mass of the compound was found to be 42.08 g/mol. What is the molecular formula of the compound? You won't be able to make the numbers a subscript. For instance, for MgCl2 enter MgCl2.

Q: Calculate, to the correct number of significant figures, how many molecules of Sg are contained in…

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Q: 6.15×1023 KK atoms Express your answer using three significant figures.    How many moles of atoms…

A: We know 1mole = 6.022x1023  So we can easily find the number of moles by using- Number of…

Q: 3.9104g sample of a compound made of only carbon, hydrogen, and nitrogen is burned completely…

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Q: rgahic compound has a gram molecular weight of 372 g/mol, and its composition is 38.6% carbon, 9.76%…

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Q: How many moles of theobromine are there in 5.72 x 1026 molecules of theobromine?

A: 1 mole of substance has Avogadro's number that is 6.022x1023 molecules or atoms NA = 6.022*1023…

Q: A 7.73 g sample of an organic compound containing carbon, hydrogen, and oxygen was burned in excess…

A: Given: Compound contains only C, H and O. Mass of compound combusted = 7.73 g. Mass of CO2 produced…

Q: 4. What are the empirical and molecular formulas of a compound that is 40.27% potassium, 26.78%…

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Q: How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F =19.00 g/mole

A: Number of mols = Weight in gMolecular weight in g/mol Then Weight of the substance = Number of mole…

Q: PLEASE INCLUDE EXPLAINATION, THANK YOUUUU: 4) Determine how many atoms are in 5.75 moles of a…

A: As we know,  1 mole of any substance contains Avogadro's No. of atoms of that substance. where…

Q: How many K atoms are present in 3.48 g of KOH formula units? Express your answer in scientific…

A: In order to find the number of potassium atoms present we first write down the given data: Mass of…

Q: The formula of a dye is C16H10N2O2 . Write each answer with the correct number of sig figs. The…

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Q: A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 100.-g sample of this compound. The…

A: Given, Mass % of C = 80.0 % Mass % of H = 20.0 % Mass of the compound = 100 g Empirical formula of…

Q: A sample of Water, H2O, has a mass of 55 grams. Determine the number of moles in the sample.

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Q: Sodium chloride, NaCl, forms by the following reaction between sodium and   a. How many moles of…

A: Given data:  mol of Cl2 = 3.4 Molar mass of NaCl = 58.44 g/mol

Q: A 50.00 g sample of an organic compound containing only C, H and O is analyzed by combustion…

A: The objective of the question is to determine the empirical formula of the organic compound…

Q: Assume that the ratio of moles of Cl to moles of Cu are 1.84.  If we can represent the formula by…

A: The ratio of moles of any two substances in a balanced chemical reaction is called molar ratio.…

Q: Attached is an example of mole ratio's from my chemistry class. Could you explain the break down of…

A: We have the reaction 2H2 + O2 ---> 2H2O Here we can see that we need 2 H2 molecules to react with…

Q: A synthesis reaction produces ammonia: 3H2 (g) + N2(g) -> 2NH3 (g). What is the maximum amount of…

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Q: A compound contains carbon, hydrogen, and sulphur. A combustion analyzer collects 45.0 g of CO2,…

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Q: A 2.86 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given, mass of 2.86 g sample of a compound produced 1.61 g CO2 and 0.989 g H2O.Moles of CO2 and H2O…

Q: -If you take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a…

A: Given data contains, The mass of aspirin is 1.00g. The mass of carbon dioxide is 2.20g. The mass of…

Q: 6.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given :-6.00gm of a certain compound x, known to be made of carbon, hydrogen and perhaps oxygen and…

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

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Q: Nitric acid is used in the production of fertilizer as well as nitroglycerin.  Convert 2.9 x 1021…

A: Since, we know that ; 1 mol of nitric acid contains 6.022 × 1023 molecules. So,  2.9 × 1021…

Q: According to the following reaction, how many moles of chlorine gas are necessary to form 0.452…

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Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl6(PO4)+(OH):"4 H2O.…

A: Interpretation : Following questions need to be solved .

Q: Assume that the ratio of moles of Cl to moles of Cu are 2.7.  If we can represent the formula by…

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Q: Aluminium has a density of 2.70 | g/cm3 . How many moles of aluminum are in a 13.2 cm3 block of the…

A: Density :- Density of a substance is its amountof mass per unit volume . So , density is the…

Q: 1: How many carbon atoms are present in a mole of ¹2C? 12 Express your answer using four significant…

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

Q: 17. Complete combustion of 2.90 g of a hydrocarbon produced 8.94 g of CO2 and 4.12 g of H2O. What is…

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Q: Assuming complete reaction, how many moles of HCl(g) can be produced from 0.100 mol of Cl2(g)?

A: H2(g) + Cl2(g) ----> 2HCl(g)  given :- 0.100 mol Cl2(g)  To calculate :- number of moles of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.