Calculate the moles of 1.00 ft3 lead (II) sulfide with a density of 7.46 g/cm3.  Group of answer choices 15.9 moles 883 moles 0.950 moles 0.838 moles 779 moles

Q: What is 63.23 ug in units of kg? O 6.323x10-6 kg O 6.323x104 kg O 6.323x10-8 kg O 6.323x102 kg O…

A: We know1μ=10-9kg

Q: Upon heating 112 g MgSO4 · 7 H2O: (a) how many grams of water can be obtained? Enter the value of…

A: The mass, number of moles and molar mass are related by the following formula Number of…

Q: What is the mass in grams of 0.119 moles NaAl(SO4)2∙12H2O? Group of answer choices 50.7 g 43.1 g…

A: Mole is defined as the ratio of the mass of a compound in grams divided by the molecular mass of the…

Q: mass

A:

Q: Chloroethane, C2H5ClC2H5Cl, is used to diagnose dead tooth nerves. How many moles are in 29.0 gof…

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Q: How many moles of NaOCI would be present in 1 gallon of commercial bleach (density = 1.05 g/ml),…

A:

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: What is the volume in milliliters of 0.350 sulfuric acid, H2SO4 contains 1.25 g HzSO4?

A: Molarity of any solution can be calculated by dividing the number of moles ofsolute by the volume of…

Q: A sample of 7.89 g of Mg(OH)2 is added to 24.6 mL of 0.190 M HNO3. How many moles of HNO3 are…

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Q: A titanium ore contains rutile (TiO2) plus some oxides of iron and silica. When it is heated with…

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Q: How many grams of CuCl2 (MW = 134.45 g/mol) is needed to prepare 100.0 mL of 0.2418 M CuCl2?…

A:

Q: Determine the volume of hexane (C6H14) in liters that contains 7.8 × 1025 molecules of hexane.  The…

A: Number of mols of substance =number of molecules presentAvogadro's number  the weight of the…

Q: Fingernail–polish remover is primarily acetone (C3H6O).How many acetone molecules are in a bottle of…

A: Given data contains, Volume of acetone is 325 mL. Density of acetone is 0.788 g/cm3.

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: 49.4 g of Cr represents how many atoms?  4.27 x 10^-21 atoms  0.950 atoms  5.72 x 10^25 atoms  2.97…

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Q: Using the average atomic masses given inside the front cover of this book,calculate the indicated…

A: Molar mass of iron(Fe) is 55.85 g/mol

Q: What is the molar mass of Ba (SO4)? A. 233.3 grams/mole B.329.3 grams/mole C.185.3 grams/mole…

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

Q: Consider a random mixture containing 7.00x10° particles of Na2CO3 and 5.00x107 particles of K2CO3.…

A:

Q: 18/8 stainless steel is made up of 18% (m/m) of chromium and 8% of (m/m) nickel in iron. What mass…

A:

Q: example of a homogeneous mixture is:     2.65 g Citric acid (H3C6H5O4)     0.023 M KSCN (aq)…

A: An mixture which is made up of two or more different substances through physical combination.

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: If 10.00 ml of 0.0131 M KIO3 are used in the first part of the standardization process, how many…

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Q: A beaker contains 100.0 mL of water. To it is added 10.0 mL of dilute nitric acid (HNO3). Calculate…

A: Volume of water = 100.0mL  Volume of dilute nitric acid = 10.0mL Total volume = 110 mL  Density of…

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: What would be the mass, in grams, of just 100 water (H2O) molecules? Group of answer choices 1.66 x…

A: Avogadro number: The no. of particles present in one mole of any substance is 6.022 ×10-23. it is…

Q: 4. A student weighs out 1.245 grams of potassium hydrogen phthalate (molar mass 204.2 grams 1 mole).…

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

Q: Calculate the mass in grams 3 sig figs of 3.10x1023 moles of water

A: Here, we have to find the mass of 3.10x1023 moles of water.

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: 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: :                         4 NH3 (g) + 7 O2 (g) → 4 NO2 (g) + 6 H2O (g) The combustion of 261 g of…

A: We are given the balanced equation, 4NH3 (g)+7O2(g)→4NO2(g)+6H2O(g) So, from the above-balanced…

Q: Calculate the moles of Na25203 using the following data: • Sample volume (mL) = 200.0 • Buret…

A: Molarity (M) or molar concentration of a solution is defined as the number of moles of solute…

Q: How many atoms of hydrogen are present in 7.63 g of ammonia? Group of answer choices a.   1.38 x…

A: We know 1mole contains 6.022 x 1023. We also know 1mol of ammonia has three moles of hydrogen atom…

Q: A 3.00mol sample of CO2(g) is in a rigid 6.00L container at 400.C∘. What is the mass of the sample…

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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: Cgrafito + 2H2 CH4(9) CH4(g) + 202(g) CO2(9) + 2H2Ou) ACH°= -802.37 kJ/mol Cgrafito + O2(g) CO2(9)…

A: Applying Hess's law and with help of data given it is determined that formation∆HCH4.

Q: Consider a random mixture containing 7.00x10 particles of Na2CO3 and 5.00x107 particles of K2CO3.…

A:

Q: 0.848g of Na2B4O7.10H2O into a crucible. After hearing the sample for a short time and allowing the…

A: Na2B4O7.10H2O is known as borax.It is a hydrated crystal having 10molecules of water of…

Q: How many grams of NaCl can be produced from 9 grams of Na? • 2Na + Cl2 –> 2NACI Calculate the final…

A: 1 mol = 6.022×1023 [ Avogadro's number ] The mass of 1 mole of atoms of a molecule is called its…

Q: Table 2.1. Unknown Mixture Identification Code: Filter paper weight 0.906g Glassware and Component…

A: We have to use the mass of sample, mass of NaCl, mass of SiO2 and mass of CaCO3 given in Table-2.1…

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: CALCULATE:  1. The numbwr of moles of 0.020 kg H20 2. The number of moles of 8.30 x 10²⁰ molecules…

A:

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

A:

Q: (1) 2 H2 (g) + 02(g) → 2 H2O(g) AH = -484 kJ (2) N2 (g) + 3 H2(g) → 2 NH3 (g) ДН — —92 kJ (3) H20(1)…

A:

Q: A sample of 7.89 g of Mg(OH)2 is added to 24.6 mL of 0.190 M HNO3. How many moles of Mg(NO3)2 are…

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Q: 50 grams H2SO4 vs 50 grams H2SO3  Which has more sulfur atoms? Show your solutions.  Will these…

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Q: What is the molar weight of potassium phosphate? (Possible atomic weights to be used: H=1; C=12;…

A: Molar weight: The molar weight of the compound can be defined as the sum of the atomic masses of all…

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".