It was found that 3.85 g of a compound of phosphorus and chlorine contained 0.165 g of phosphorus. What are the percentages by mass of phosphorus and chlorine in this compound? 10.5% P and 89.5% CI O 4.29% P and 95.7% CI 35.0% P and 65.0% CI O 20.6% P and 79.4% CI

Q: Which one among the following statements is correct? A 12.01 g of C contains 6.022 x 10 23 atoms…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: AB2 + 2 C --> 2 CB +  A (OR A B2 + 2 C right arrow 2 C B + B) Calculate the number of molecules of…

A: Given, AB2 + 2 C --> 2 CB +  A mass of AB2 react = 1.000 × 101 g = 10 g mass of C react = 9.5600…

Q: 7.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: 6. Write the letter corresponding to each definition in the box below. [K/6] A isotope B mole C…

A: An atom is the smallest particle of matter and there are basic definitions related to an atom. They…

Q: Use this information to find the molecular formula of X.

A:

Q: Complete the table. Element Mass Moles Number of Atoms Pt 0.0449 Fe 1.14 x 1025 Ti 23.8 mg Hg 2.05

A: Pt : Mass of Pt = moles x molar mass = 0.0449 x 195 = 8.76 g Number of atoms of Pt = moles x…

Q: Complete the table. Element Moles Mass Cr 0.00442 Fe 73.5 mg Ti 1.009 x 10-3 Hg 1.78 kg

A: Mole is represented by the symbol mol. It is unit of measurement of substance. Mass is defined as…

Q: What is the mass of 4.50 x 1022 Cu atoms? Multiple Choice O 4.75 g O 63.55 amu O 63.55 g O 7.47 x…

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Q: Number of atoms of C in 14 moles of CH10 are: O 337.23x10^23 O 24.09x10^23 O 84.31x10^23 O…

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Q: completely in excess oxygen, and the mass of the products carefully measured: product mass carbon…

A: Explanation given as follows

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: A 5.361 g of sample of a mixture containing Ba(OH)2•8H2O (MM = 315.5) and NaCl (MM = 58.44) yielded…

A: In the given question we have to calculate the grams of sodium in the mixture,First of all, we have…

Q: Calculate the moles of Cl in 25.0 g of XYCl3 if the compound XYCl3 has a molar mass of 119.38 g/mol.

A: The above given molecule is a chlorine containing compound. As per the given formula the given…

Q: In the same amount of moles of Potassium Dichromate (7.2). How many atoms of Cr are there? a)8.67 x…

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Q: How many atoms of oxygen are in 25 g of SO₂? a) 2.3 x 1022 Ob) 6.8 x 1023 Oc) 1.4 x 1023 d) 4.6 x…

A:

Q: Calculate the moles of glucose in 1.0253 g of glucose, C6H12O6. Then calculate the moles of each…

A: Given :-  Mass of glucose = 1.0253 g  To calculate :-  Number of moles of glucose and also determine…

Q: A sample of ethanol (C2H6O) contain 3.024 g of hydrogen. How many moles of carbon in the sample?…

A:

Q: 2. What is the empirical formula for the compound with 40.27% K, 26.78% Cr, and 32.96% O?

A: Given: The unknown compound has the following elements: The mass % of K, =  40.27 %. The mass % of…

Q: What is the mass of 4.50 x 1022 Cu atoms? Multiple Choice O 747 x 102 amu O 747 x 1029 O 475 g O…

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Q: Consider the following hypothetical equation.  2 AB3 +  3 C2D --> A2D3 + 6 CB OR 2 A B3 + 3 C2 D…

A: Mass of AB3 = 34.49 grams. Mass of C2D = 38.02 grams  Actual yield of A2D3 = 4.25 grams. Percentage…

Q: :12hcyA/viewt What is the mass of 1.34x10^25molecules of Magnesium? * O 204g O 541g O 72,900g O…

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Q: Select the correct molecular mass of carbon dioxide A B C D 28.01 g CO₂ 44.01 g CO₂ 55.85 g CO₂ 22.4…

A: To determine: The molecular mass of CO2

Q: What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen and 48.68%…

A:

Q: 2.050 g of an unknown sample contains H, S, and O. If the compound contains 0.0500 g H and 0.800 g…

A: Total weight of unknown sample = 2.050g  Mass of H = 0.0500g  Mass of S = 0.800g

Q: What is the percent mass of carbon in H2C2O4? O 26.68% O 71.08% O 2.24% O 13.3%

A: The molecular formula of the given compound is = H2C2O4 The mass percent of carbon is =?

Q: Number of atoms of C in 6 moles of C,H10 are: O 24.09x10^23 O 36.13x10^23 O 2.49x10^23 O…

A:

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

A: Molar mass of HF = 20.01 g/mol  Molar mass of N2= 14.01 g/mol  Molar mass of Cl2 = 70.9 g/mol

Q: ↑ A compound has the empirical formula N O2 and has a molecular weight of 92 g/mol. The true formula…

A:

Q: Find out the empirical formula of a compound that is found to contain 8.02 g S and 8.00 g O. SO O…

A: Consider the given information is as follows; Mass of S = 8.02 g Mass of O = 8.00 g Empirical…

Q: Which of the following contains the most atoms? 24.305g Mg 39.098g K 9.0122g Be 21.62g B

A: One mole of a substance contains 6.022×1023 atoms and the number of moles of a substance can be…

Q: The percent composition by mass of a compound is 68.8% C, 4.92% H, and 26.2% O The molar mass of…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: If you have 6.3E23 atoms of carbon, how many moles do you have? Question 6 Thore are C23 moleculcs…

A: The given problem can be solved by using the relation give below as; 1 mole = 6.022×1023 atoms or…

Q: 81.073 amu is the molecular mass of chloroform(CHCI3) hexane(CH14) tetra methyl silane(Si(CH3)4)…

A: Mass of 1mole substance is called molecular mass and it is expressed in amu unit. Molecular mass of…

Q: What is the empirical formula of a compound that contains 30.0% O, 20.3 % S and 49.4% K? KSO4 O…

A: We have O as 30% , S as 20.3% ,  K as 49.4% , we have to calculate the empirical formula of the…

Q: a) Combustion analysis of 1.200 g of an unknown compound containing carbon, hydrogen , and oxygen…

A:

Q: Phosphorous and sulfur form an extensive series of sulfides with the general formula PxSy. Determine…

A: Recall the measurements, %S=72.1 % Unknown = PxSy

Q: A compound is 24.7% calcium 1.2% hydrogen 14.7 carbon and 59.3% oxygen. Determine the chemical…

A:

Q: Percent yield of chemical reactions Gaseous methane (CH4) reacts with gaseous oxygen gas (0₂) to…

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Q: What is the Average atomic mass of an unknown element given its isotopes and their abundancies…

A:

Q: For the chemical reaction, Fe2O3 + 3 SO3 à  Fe2(SO4)3, calculate the number of moles of SO3 you will…

A: Given :-  Fe2O3 + 3 SO3 →  Fe2(SO4)3  number of moles of Fe2O3 = 6.45 mol  To calculate :-  number…

Q: 2.050 g of an unknown sample contains H, S, and O. If the compound contains 0.0500 gHand 0.800 g of…

A:

Q: Calculate the percent yield of A2D3 if 4.49 grams are produced from the reaction of 27.91 grams of…

A: Given :-   2 AB3 +  3 C2D --> A2D3 + 6 CB  The atomic weight of A is 25.0 g/mol The atomic weight…

Q: 8.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given :  Mass of compound = 8.00 g  Molar mass of X = 138. g/mol  Mass of CO2 formed = 17.86 g  Mass…

Q: Calculate the folowing   1-number of atoms in 6.54 g Be =37 x 1023 atoms 2-number of atoms in 28.0…

A: Number of Moles = (Mass of the Sample)/(Molar Mass)   Number of Atoms or Molecules = (Number of…

Q: %66'L O %67S O %0'0s O SI bromine in the compound? A certain compound contains carbon, hydrogen, and…

A: Mass percent :-  The mass of an element present in 100 grams of the compound is known as mass…

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".