How many sodium ions are present in 20.0 mL of 0.10 M Na,S? A. 0.002 В. О.004 С. 1.20 х 1021 D. 2.41 x 1021

Q: 58. The number of hydrogen atoms present in 25.6 g of sucrose (C12H2201), which has a molar mass of…

A: Detail mathematical calculation for determining number of atoms of hydrogen is given below

Q: An ionic compound MX3 is prepared according to the following unbalanced chemical equation.   M  +…

A: The number of moles of X2 (nX) is calculated using equation (1) in which N is the number of…

Q: Bromine trifluoride reacts with metal oxides to produce bromine and oxygen quantitatively. For…

A: The reaction taking place is given as, Given : Mass of TiO2 taken = 5.50 g And mass of BrF3 taken =…

Q: lodine is prepared both in the laboratory and commercially by adding C12(g)C12(g) to an aqueous…

A: Given  2NaI(aq) + Cl2(g)------> I2(s) + 2NaCl(aq) Molecular weight of NaI = 149.89g/mol Molecular…

Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO3 and…

A: Mixture consists of two nitrate compounds NaNO3 and Ca(NO3)2. Mass Percentage of NO3 in the mixture…

Q: 9. How many particles are present in 10.0 moles of table salt? 6.02 · 1023 particles 6.02 · 1024…

A: One mole has 6.022 x 1023 Therefore 10.0moles will have 10.0x 6.022 x 1023 =6.022 x 1024

Q: .07 x 1024 CH4 molecules mol 24.3 g of Cu. mol

A: Interpretation: We have to calculate moles.

Q: When mixed in the presence of water, the elements Zn and I2 react to produce the compound zinc…

A: in given reaction,  Zn(s)  +  I2(s) ------------------->  znI2(aq)

Q: Seawater is approximately 4.0% by mass dissolved ions, 85% of which are from NaCl. (a) Find the mass…

A: Solution- (a).The mass of ions is 4.0 % and 100% of ions contain 85% NaCl. So, the mass % of NaCl is…

Q: Tetrasilane (Si4H10) is a liquid with a density of 0.825 g cm-3 . It reacts with oxygen to give…

A: First calculate the mass of tetrasilane. Convert the above calculated mass to moles.

Q: 5. 2Cr(NO;); (ag) + 3 Ba (s) → 3Ba(NO;)2(ag) +2Cr(s) Complete Ionic: 2C13+(ag) + 6NO3-(ag) + 3Ba(s)…

A: The reaction taking place is given as, => 2 Cr(NO3)3 (aq) + 3 Ba (s) -------> 3 Ba(NO3)2 (aq)…

Q: 30. What is the molar mass of (NH4)2SO4? 113.19 g/mol 141.39 g/mol 114.05 g/mol 124.21 g/mol 132.17…

A: Molar mass :- The molar mass of any substance is equal to the sum of the atomic mass of all the…

Q: What mass, in grams, of NO2 is needed to form 132.9 g of NO? A 3NO2(g) + H20() → 2HNO3(aq) + NO(g) x…

A:

Q: 8

A: Question 8. Given: To Solve: Molar mass of ammonium sulfate=? Solution: Molar mass of N=14Molar…

Q: How many grams of lithium nitrate will be needed to make 200.0 grams of lithium sulfate, assuming…

A: The balanced chemical equation is: Pb(SO4)2 + 4LiNO3 →Pb(NO3)4 + 2Li2SO4(s)

Q: NaI (aq) + Cl2 (g) → I2 (s) + NaCl (aq) Given this equation calculate how much NaI is required to…

A: Consider the given information is as follows; Mass of I2 produced = 3.44 kg = 3440 g Mass of NaI…

Q: Disilane (Si2H6) is a gas that reacts with oxygen to give silica (SiO2) and water. Calculate the…

A:

Q: + 6 HCl(aq) → 2 AICI3(a9) + 3 H;O, + 3 H,O, 10. In the reaction, Al,O3(s) how many grams of AICI,…

A: This problem can be tackled by finding the no of moles of HCl in given mass and going through unitry…

Q: 32. Find the mass of oxygen present in 1.50 mole of sucrose (C12H22011). a. 195 g b. 200 g c. 245 g…

A: 1mol is defined as 1/12th part of the mass of C-12 atom.

Q: Please assist with number 2

A: The number of moles of sodium atom can be calculated as given below.

Q: How many atoms are in 48.4 grams of Pb?  Pb= 207.20   Molar Mass:

A: Given, mass of Pb = 48.4 grams molar mass of Pb = 207.20 grams/mole we know, mole = mass / molar…

Q: How many bromine atoms are present in 32.5 g of CH2Br2?

A: Since there are multiple questions, we are authorized to answer only the first one. If you want the…

Q: How much Na3PO4 (163.94 ) is needed to make 1.00 g of  Ca3(PO4)2 (310.18  )? 3 CaCl2 (s) + 2 Na3PO4…

A: Given, 1.00 g of  Ca3(PO4)2

Q: A 4.70 g quantity of solid rubidium metal is combined with 3.44 g of magnesium chloride crystals…

A: The quantity of magnesium metal produced depends upon the stoichiometry of the reaction and limiting…

Q: PC15 (8) + H₂O(1) POCI, (1) + 2HCl(aq) When 62.57 g of phosphorus pentachloride reacts with excess…

A: Molar mass of PC5 is 208.5 gmol-1.PCl5 is the limiting reagent means the amount of  product…

Q: 14. Sodium metal reacts with water according to the following reaction. 2Na(s) + 2H2O(1) → 2NaOH(aq)…

A: The step wise solution is as follows -

Q: How many particles are there in: 1. 2.00 moles of ammonia NH3? 2. 0.50 moles chlorine Mg3(PO4)h? 3.…

A: According to the mole concept - 1 mole of any Substance has = 6.023×1023 Molecules/atoms /particles…

Q: 2) For the following reaction N2 (g) + 3H (g) →2NH3 (g) The mass of NH, resulting from the reaction…

A: Given equation is : N2 (g) + 3H2 (g) ------> 2NH3 (g)  Given moles of H2 = 0.25 mole  Mass of NH3…

Q: When mixed in the presence of water, the elements Zn and I2 react to produce the compound zinc…

A: Consider the given reaction. Zns+I2s→ZnI2aq

Q: A sample of manganes reacts completely with oxygen in a specialized crucible. The reaction is given…

A: Given reaction: To find: The charge on manganese. Balanced chemical equation.

Q: How many atoms are there in 75 molecules of acetic acid, CH3CO2H? A compound contains, by mass,…

A:

Q: You need to make up 500.0 mL's of 0.5750 M NaCl (58.44 g/mol). What mass of NaCl should you measure…

A:

Q: What amount of oxygen, O2, (in moles) contains 1.8x1022 molecules? А. 0.0030 В. 0.030 С. 0.30 D. 3.0

A: Given that :- O2 contains 1.8 × 10²² molecules

Q: Phosphorus reacts with oxygen to form phosphorus(III) oxide as shown. 4P(s) + 302(g) → 2P203(s)…

A: The details solution for this is provided below in attach image.

Q: Alex’s mass before getting the tattoo was 61.5 kg.  The tattoo contains 5.20x1023 molecules of iron…

A: Given, Alex’s mass before the tattoo = 61.5 kg  tattoo contains 5.20x1023 molecules of Fe3O4

Q: 1. How many hydrogen ions (H+) are in a mole? 2. What is the mass of one mole of H+ ions, in grams?,…

A: Introduction Always remember that 1 mole = 6.022 x 1023 atoms or molecules or ions. The correct…

Q: Lead is found in Earth’s crust as several different lead ores. Suppose a certain rock is 38.0% PbS…

A:

Q: The molar mass of sodium fluoride is A. 51.1 g/mol B. 42.0 amu C. 42.0 g/mol D. 20 g/mol E. 25 g/mol

A:

Q: The compound cisplatin, Pt(NH3)2Cl2, has been studied extensively as an antitumor agent. It can be…

A: Given : Mass of K2PtCl4  = 0.4256 g Mass of NH3 =  0.2135 g

Q: A 4.86 g quantity of solid rubidiumnetal is combined with 3.44g of magnesium chloride crystals…

A: The data given to you is - Mass of MgCl2 = 3.44 g Mass of Rb = 4.86 g

Q: Kl (aq)+H2O (I)+KMnO4(aq)=I2 (s)+MnO2 (s)+KOH (aq) Kl (aq)=166.0 g/mol H2O (I)=18.02 g/mol…

A: a) Given  mass of potassium iodide, KI = 15.00 grams  molar mass of potassium iodide, KI  = 166.0…

Q: A student was given the following question: How many atoms of Br are in 50 grams of CaBr2? They made…

A: Their set up is wrong the correct set up would be Because we will get 2  moles of Br atom from 1…

Q: 4 NH3 +5 02 → 4 NO + 6 H20 What mass of O2 (MW = 32.00 g 02) reacts with 150. g of NH3 (MW = 17.04 g…

A: Stoichiometry coefficients give the ratio of the moles of reactants that would react.

Q: 8 Sb (s) + 10 HNO3 (aq) 4 Sb2O5 (s) + 5 N20 (g) + 5 H20 (1) -> If 120 g of HN03 is reacted, how many…

A: 17.87 g  H2O is produced

Q: 10) What is the mass in grams of 0.852 moles of ferric oxide (Fe,O,) ? A) 136 g B) 17 g C) 5.34 x…

A: Number of moles = 0.852 mol

Q: Calculate the molar mass of chromium(III) chloride hexahydrate, CrCl3•6H2O, to 4 significant…

A: molar mass of chromium(III) chloride hexahydrate, CrCl3•6H2O is B

Q: 1Na2CO3(aq)  +  2AgNO3(aq) ---->1Ag2CO3(s)  + 2NaNO3(aq)     Calculate the mass of silver…

A: Moles of sodium carbonate and silver nitrate can be calculated as follows:

Q: How many moles of atoms are in each elemental sample? 1) Express your answer using two significant…

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

Q: After heating, the anhydrous salt can be left on the bench several minutes before weighing * True…

A: As per our guidelines we can only solve first three sub-parts. Please resubmit the other questions…

Q: Consider the following definitions. 1 doz = 12 1 gross = 144 1 ream = 500 1 molmol =…

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