Two different compounds both contain Element X and Element Y.  Compound I has 1.000 g Element X and 0.2518 g of Element Y.   Compound II has 0.2500 g of Element X and 0.0839 g of Element Y.  Both compounds have the same numbers of atoms of Element X.  Determine the relative numbers of atoms of Element Y in Compound II vs Compound I using integers.  State the name of the law used for these calculations.

Q: estion 31 of 39 Element X forms three different compounds with element Y. Information about these…

A: There are three compounds which involve element X and Y.  We have given mass of element Y per gram…

Q: 95: A 1.45-g sample of phosphorous burns in air and forms 2.57 g of a phosphorous oxide. Calculate…

A: When phosphorus burns in the air, it absorbs oxygen gas which results in the formation of oxide. The…

Q: In the chemical formula Mg(NO3)2, the numerical coefficient is equal to…

A: Chemical formula  are representation of molecules or compounds by fixed proportions of elements in…

Q: Which of the following shows a correct setup? O1.45 mol Ca x- 40 g Ca X1 mol Ca O1.45 mol Ca x Са хт…

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Q: How many miles deep would a mole of popcorn kernels have to be in order to cover the Condinental…

A: Volume of 90 kernels of popcorn = 1 cu inch Length of the U.S. = 3000 miles Breadth of the U.S. =…

Q: A mole of carbon has a mass of 12.01 g. and a mole of aluminum has a mass of 26.98 g. • Define what…

A: The mole is the standard unit of measurement for amount of substances. The mole is essentially a…

Q: A 2.19 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: The mass of compound containing Carbon, hydrogen, oxygen, nitrogen and sulfur combusted in excess…

Q: An electric current is passed through 60.0 mL of water (H2O). This converts the water into 53.33 g…

A: Given  Volume of water = 60 mL  Mass of Oxygen  = 53.33 gram Mass of hydrogen gas  = 6.67 gram…

Q: A copper ring is composed of 1.45×1023 atoms.1.45×1023 atoms. Calculate the mass of the ring in…

A: The mass of the ring in grams is to be calculated

Q: A.)What mass of cobalt contains the same number of atoms as 77.0 g of fluorine?

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

Q: Element X forms three different compounds with element Y. Information about these compounds is…

A: We have to predict the formula for the other two compounds.

Q: A 69.56 g sample of SOCI2 reacts with 13.93 g of CO2 to form SO2 and CCI4. 2 SOCI2 (1) + CO2 (g)…

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Q: what is the mass of 1.08x10^22 molecules of SF6? pls, show how you got it.

A:

Q: D* (aq) + CO,-(aq)→ (s) +3H;O(1) HCI (g) + NH3 (g) → NH,CI (s) 2H2S(g) +302(g) → 2H,0(g) + 2SO2(g)…

A: Equation first :1 )  number of molecules of products is  more than that of reactant so entropy is…

Q: Give the mass % of carbon in your compound  ___________________18.537956___________ Give the mass %…

A: Let us assume that there is 100 g of a compound. Hence it contains , Mass of carbon = 100 g of…

Q: An 86.04 g sample of H2SO4 is 91.22% pure. What is the mass of pure H2SO4 present in the sample?

A: % Purity = (Mass of pure substance x 100)/Mass of sample

Q: A certain organic compound has the formula C8H13O2. A sample of this compound weighs 5.89 grams.…

A: Mass of C8H13O2 = 5.89 g Molar mass of C8H13O2 = 141.184 g/mol Moles of C8H13O2 =MassMolar mass=5.89…

Q: 24. The total number of sodium atoms in 46.0 grams of sodium is A. 3.01 x 1023 atoms B. 6.02 x 1023…

A:

Q: Aspirin contains 9 atoms of carbon, 8 atoms of hydrogen and 4 atoms of oxygen. The chemical formula…

A:

Q: For 2.526 g of a compound containing only copper and oxygen, CuxOy, a student found that it…

A: From the mass of compound and mass of Cu ,we can determine the mass of oxygen. Then using molar mass…

Q: What percentage of atoms in the molecule represented in the following formula are nonmetals?…

A: % of non-metal atoms = 100 x number of non-metal atoms/total number of atoms

Q: A student conducts an experiment using an unknown hydrate and obtains the following data: Crucible…

A: Answer:- this question is answered by using the simple concept of determination of empirical formula…

Q: Phosphorus has the molecular formula P4, and sulfur has the molecular formula S8. How many grams of…

A: Given Number of molecules of P4 = number of molecules of S8 moles of P4 = moles of S8   mass of…

Q: A 36.41-g sample of calcium carbonate (CaCO3 ) contains 14.58 g of calcium and 4.36 g of carbon.…

A: Given data: Mass of CaCO3 sample = 36.41 g Mass of calcium = 14.58 g Mass of carbon = 4.36 Formula…

Q: The table below sbows elements present in the Sun. The Sun's composition is similar to other main…

A: The sun is made up of hydrogen and helium in the maximum amount. All the elements produced in the…

Q: You have 1 mole of oxygen (O₂) gas and 1 mole of ammonia (NH3). Which has more mass? 1 mole of…

A: We are given 1 mole each of Oxygen gas, O2 , and ammonia, NH3.

Q: Determine the mass (in grams) of aluminum present in 1.07 grams of Al2S3? Do not type units into…

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Q: 5. The term mole is a unit used to represent (1) density of particles (2) an element or compound's…

A:

Q: A sample of a compound has a mass of 41.13g. The sample is found to contain 37.28 g of carbon and…

A: Answer: option 2) 90.6% Carbon and 9.4% Hydrogen

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: Determine the mol H2O/mol CaSO4 if you have the following data to two decimal places (MM H2O =18.02…

A: Moles are ratio of mass to molar mass of substance.

Q: 6. This Magnesium top by ForeverspinTM weighs merely 6g. a) Write the weight of this top in…

A: The question is based on mole concept. We have to determine number of particles present in 6 gram of…

Q: The mass of a copper coin is 7.83 g. Suppose it were pure copper. a) How many moles of Cu atoms…

A: a) Given that : Mass of Copper coin = 7.83 g Molar mass of copper = 63.55 g/mol Moles of copper atom…

Q: You have two distinct gaseous compounds made from element X and element Y.The mass percents are as…

A: To find: The simplest possible formulas for reactants and products in the given chemical equation.…

Q: A 12.37 g sample of silver nitrate is reacted with 11.9 g of barium chloride according to the…

A: number of moles = mass/molar mass  mass = moles × molar mass

Q: A 1.125-gram piece of magnesium was burned in the presence of oxygen, forming 1.866-grams of the…

A: Given : Mass of magnesium burned = 1.125 g And mass of magnesium oxide formed = 1.866 g

Q: One mole of silicon (6 x 1023 atoms) has a mass of 28 grams, as shown in the periodic table on the…

A: Given :- Mass of 6 × 1023 atoms = 28g  Density = 2.4g/cm3

Q: he mass composition data for two compounds containing phosphorus and chlorine is shown below. Does…

A: we are given the composition of compound 1 and compound 2           PHOSPHORUS(P) CHLORINE(Cl)…

Q: A typical cup of coffee has about 100. mg of caffeine. Calculate the number of caffeine molecules in…

A:

Q: 4. One mole is equivalent to a. 3.75 g Hydrogen c. 16 g Oxygen b. 14 g Carbon d. 190 g Gold 5. What…

A: Answer  4 ) one mole is equivalent to        c) 16g  oxygen  1 mol is  equal to 6.022×1023 (…

Q: How many helium atoms are there in a helium blimp containing 534 kg of helium?   Express the number…

A: Mole= mass/molar mass  Molar mass of Helium =4g/mol So first Calculate mole Then atoms…

Q: 5. Compound X is composed of 52.2% carbon, 13.0% hydrogen, and the rest oxygen, by mass. The…

A: Compound X contain C= 52.2%                                    H= 13%…

Q: Analysis of a 40 g sample of water revealed a mass percent for lead of 3.23%. Calculate the number…

A: Percentage by mass of the substance in the solution mixture can be expressed as the ratio of mass of…

Q: Some students burned magnesium in excess oxygen, as described by the equation 2 Mg(s) + O2(g) --> 2…

A:

Q: A student performed an experiment of heating a hydrate and obtained the following data.    the mass…

A: Mass of the empty crucible =17.556g -----Equation A Mass of crucible and a hydrate= 21.018g…

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.