The compound PClx contains 85.14% chlorine by mass. What is the value of x? Enter your response as a whole number

Q: 105 g of MgCl2 contains ________ mol MgCl2. Group of answer choices 1.76 1.10 1.06 x 1024 6.62 x…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: Flubberium (Symbol Fb) has a atomic mass of 3.8 grams, Vibranium (Symbol Vi) has an atomic mass of…

A: Given Molar mass of flubberium (Fb)= 3.8g Molar mass of Vi = 5.2 g Percentage composition of Fb is…

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: 9. How many moles are there in 45.0 grams of sulfuric acid, H2SO4? moles Your answer should be…

A: 1 mole of H2SO4 contains 98.079 g. In other words, molar mass of H2SO4 is 98.079 g/mol.

Q: How many atoms of hydrogen are in 2.22E1 g of methane?   Respond with the correct number of…

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

Q: Diamonds are made of pure carbon. How much does a diamond weigh if it is composed of 1.06x1023…

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Q: Calculate the grams of sulfur in 8.022x1025 formula units of Lithium sulfate

A: The mass of formula unit of a substance is defined as the sum of atomic masses of all the atoms in a…

Q: Calculate the mass in grams 3 sig figs of 3.10x1022 molecules of water.

A: Given that : We have to calculate the mass of 3.10x1022 molecules of water.

Q: The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O:…

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Q: A mixture contains 24.5% A, 35.8% B, the remainder being component C. If you have 31.2g of this…

A: Given: The weight of given mixture is 31.2 g Percentage of component A is 24.5% Percentage of…

Q: Conversion factors again! Calculate each of the following quantities: A. Molecules of CO2 in 1.75…

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Q: Drag conversion units onto the boxes in the equation to make conversions. Some boxes can be left…

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Q: many grams of O2 are in 1.51 x 1023 molecules

A: 1 mole contains molecules equal to avagadro's number  Molar mass of O2= 32 g/mol It means 32 g O2 is…

Q: Consider the information below. What is the value for ASsys? Round and report your answer to the…

A: The standard thermodynamic data for the given reactants and products at given temperature is,…

Q: 2. -3 9. Gaseous butane (CH, (CH,) CH, will react with gaseous oxygen (0,) to produce gaseous carbon…

A: Given Data :  1. Mass of butane = 4.65 g  2. Mass of oxygen = 25 g

Q: Calculate the mass of 3.011 x 10^23 atoms of calcium.  Report your answer to two decimal places

A: First find no. of moles by dividing by Avogadro no. ( NA) then find mass.

Q: Ammonium phosphate ((NH) PO, is an important ingredient in many fertilizers. It can be made by…

A: Given ; mass of ammonia = 1.4 g

Q: What element has 7.767 x 1017 atoms in 6.57 x 10-5 g of material?   Group of answer choices A.…

A: Given data is: Mass of material = 6.57×10-5 g Determine the element having 7.767 x 1017 atoms in…

Q: How many grams of Al are needed to form 7.3 grams of Al2O3

A: Given: Mass of Al2O3 = 7.3 g Standard data: The molar mass of Al2O3 = 101.96 g/mol The molar mass…

Q: A student measures 0.3850 g of a mixture of sand and sodium carbonate. At the end of the experiment,…

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Q: Calculate the number of carbon atoms in 1.75 g of table sugar, C12H22O11 Express your answer using…

A: mole = (given mass ÷ molecular mass) Molecular mass of sugar C12H22O11 = 342g

Q: Calculate the mass in grams of each sample 5.20×1020 H2O2 molecules

A: Molar mass of any compound is the mass of that compound in which Avogadro's no. of molecules are…

Q: 4. Write an equation showing how the mass of the substance sought can be converted to the mass of…

A: To Write an equation showing how the mass of the substance sought can be converted to the mass of…

Q: Do I always have to divide the top number by the bottom? In this case... 1mol divided by 174.1g of…

A: Actually from given grams of pure juglone the moles of juglone present have to be calculated. In…

Q: using dimensionral Complete the Conversions analysis. a, 2.25 x109 lbs solid NaOH into moles of NaoH…

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Q: How many molecules are in the sample? 51.8 gg N2N2 Express your answer using three significant…

A: Given mass of sample (N2) = 51.8 g  Molar mass of N2 = 28 g/mol Calculation for number of moles :…

Q: O XC12(aq) + 2 AgNO3(aq) 2 X(NO3)2(aq) + O AGCI(s)

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Q: Ammonium phosphate ((NH4),PO4) is an important ingredient in many fertilizers. It can be made by…

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Q: Given the following data, where did 339 come from? Component Chemical formula Percentage Mass of…

A: Dulong's formula for GCV is given by, Gross calorific value=1100[8080×%C+34,500×(%H-O8)+2,240S]…

Q: If the mass of 0.8 mole mixtures of NO and CH4 gases is 17 grams;   I. The number of moles of NO is…

A: Given: Moles of NO and CH4 mixture = 0.8 mol. And mass of mixture = 17 g. Assuming y moles of NO in…

Q: mmonium nitrate: NHẠNO3(s) N20(g) + 2H209) How many g of dinitrogen monoxide can be made from 1.62 x…

A: In this question, we want to determine the mass of N2O gas in gram unit.  You can see details…

Q: How many atoms are there in each of the following substances? 1.88 g Bi Express your answer using…

A: Calculate number of atoms in each element given--

Q: Calculate the number of grams of sodium in 2.60 gg of each sodium-containing food additive.  Na3PO4…

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Q: 1C6H1206 + 602→6CO2 + 6H20 + 362.5 kJ If the theoretical yield of water is 354.3 grams and the…

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Q: Is there a rounded significant figures  of 5.681x10-7 moles ( 0.0000005681)

A: Significant figures can be defined as the to total number of the digits present in a number…

Q: Tell whether each of the following errors will cause the experimental mass percent of the sodium…

A: Proper heating  is  necessary  for maintaining  yield of the reaction  .

Q: a) The concentration of orciprenaline in the diluted solution in mg/L Calculate the answer by read…

A: Answer is as follows

Q: Ammonia NH3 chemically reacts with oxygen gas O2 to produce nitric oxide NO and water H2O. What mass…

A: Ammonia NH3 chemically reacts with oxygen gas O2 to produce nitric oxide NO and water H2O. The…

Q: Find the percentage by mass of oxygen (O) in N2O3 if it is 36.9% nitrogen (N) by mass. (Round your…

A: Percentage by mass of an element in a given compound can be calculate by the formula,     percentage…

Q: When you perform the following operations, how many signifcant figures should your answer have?…

A: Addition of significant figures :- The answer of addition should be rounded to the same number of…

Q: Calculate the mass in grams of each sample. 9.27×1019 CH4 molecules Express your answer using three…

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Q: wich is 30 atoms of calcium weigh: Group of answer choices 600 g 1.806 x 1025 amu 600 amu 1.202…

A: No. of atoms of Calcium = 30 atoms 1 amu = 1.660539040 × 10^−24 gram So, the 30 atoms of calcium…

Q: researcher is using 7.20 x 1023 molecules of chlorine gas (Cl2) in an experiment. How many grams of…

A: Number of Molecules = 7.20 ×1023  Moles = Number of molecules/6.022×1023 = 7.20 ×1023/6.022×1023 =…

Q: Assume that the mass of impure acetanilide is 1.748 g. and the mass of recrystallized acetanilide is…

A: Percent recovery may be calculated by dividing the yield obtained after crystallizationby amount of…

Q: Find grams of solvent in a 5.6% mass of solutions of X that has 22.3g(X) g(soltn)= g(      )+g(…

A: given, the mass percentage of solution  of X = 5.6% weight of solute (X) = 22.3g X is the solute

Q: Express 250 mcg/mL Warfarin sodium as a percentage (wN) O 0.0001 0.025 0.10 0.25

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Q: Convert to Moles  2.03X1022 atoms of lithium, Li 1.75 X1025 Formula Units of Sodium Chloride, NaCl…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: What is the mass in grams of 49.5 moles of NaCl?

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Q: pure sample of an organic molecule has the formula CxHyOz. If x = 12, y = 21, and z = 2. Calculate…

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Q: 7. You have been given a crate containing the following number of bags of M&M's. You carefully weigh…

A: Average or mean is the way to get the central value of any experimental data. It is one of the most…