The mass of 1 molecule of HBr in grams is 1.34x10-22. Select one: True False

Q: How many centiliters of sulfuric acid are in 32.9 x 10-23 molecules of acid? The density of…

A: Here we have asked that how many centilitres of sulfuric acid are present in 32.9 × 10-23 molecules…

Q: Q2- Find the percentage of aspirin if you know that the weight of salicylic acid is 1 gm and the…

A: We here just need to find out the percentage of aspirin in sample

Q: By weight, liquid A makes up 8 percent of solution R and 18 percent of solution S. If 3 grams of…

A: Percent means per 100. Be it 100ml or g or any other unit.

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: the label on an ocean spary cran-raspberry drink list 30g of surgar in 240mL of drink. I weighted…

A: Percent composition =Mass of solute Mass of solution×100%

Q: I need step by step process solving [4.184x156(Tf-295)] + [4.184x85.2(Tf-368)] = 0.

A: The given expression has to be solved. [4.184x156(Tf-295)] + [4.184x85.2(Tf-368)] = 0. 4.184 x 156…

Q: How many milligrams of sodium are contained in 4.50 g of NaCl?

A: We know that,                 1 milligrams=1/1000 grams                 1 grams=1000 milligrams…

Q: Calculate the number of grams of sodium in 7.9 gg of each of the following sodium-containing food…

A: Mass of sodium-containing food additives = 7.9 g

Q: a 10 g organic sample is heated and decomposed in a vacuum chamber, what would be the resulting…

A: According to the law of conservation of mass, amount of Substance can not be created or destroyed…

Q: You are given two solutions, labeled A and B. Solution A has a density of 1.5 g/mL and solution B…

A: We have given that Two solution A and Solution Bhhaving density are Density of Solution 'A' =…

Q: a) For 8.85×10−3 M LiOH, determine [OH−] and [H3O+]. Express your answers in moles per liter to two…

A: (a)Given, 8.85*10-3M LiOH

Q: Classify each of the following conversion factors according to the presence of exact numbers. Drag…

A: 1) Both L and mL are the units of volume. The conversion is as follows: 1 L=103 mLThus 1 mL=10-3 L⇒1…

Q: Which quantity represents an inexact number?   Question 29 options:   A basket contains 12 apples.…

A: Exact numbers, such as the number of people in a room, have an infinite number of significant…

Q: What volume of titanium isopropoxide is required to form 10 ml of a solution in which it is 0.2 M?…

A:

Q: A chemist adds  925.0mL  of a  /0.00469gL  copper(II) fluoride  CuF2  solution to a flask.…

A:

Q: How much of an elixir that is 3% medication should a pharmacist mix with 10 mL of an elixir that is…

A: It is required to calculate the volume of 3 % medication which is required to be mixed with 10 mL of…

Q: Convert 1.01x10^25 atoms sodium to grams of sodium round to the nearest whole number

A:

Q: Question 9 A researcher is using 5.43 x1023 molecules of chlorine gas (Cl2) in an experiment. How…

A:

Q: A chemist adds 0.15L of a 2.9M zinc nitrate ZnNO32 solution to a reaction flask. Calculate the mass…

A: Given: Concentration of Zn(NO3)2 = 2.9 M And volume of Zn(NO3)2 solution added = 0.15 L

Q: What is the mass percent of magnesium chloride in a 225.0 g solution made with 44.32 g of magnesium…

A: The mass percent of magnesium chloride present in the solution can be determined by using the…

Q: You wish to prepare 211 grams of 16.6 % Mg(CH3CO0)2. You will need grams of magnesium acetate and mL…

A: Mass of solution is = 211 g Percent concentration of Mg(CH3COO)2 is = 16.6 % Density of water is =…

Q: iple Choice: In kilogram(s), what is the mass of 3 moles of platinum?  a. 0,69 b. 0,59 c. 0,79

A: Mole is defined as the unit which relates the amount of the substance with a number of atoms present…

Q: A pill of advil contains 200mg of the active ingredient, ibuprofen. Express the mass of ibuprofen in…

A: Given, mass of ibuprofen in a pill of advil is -------- 200mg. What is its mass in grams?

Q: 4. A patient who is pre-diabetic showed a level of 180. mg of glucose per 100. mL of blood, also…

A:

Q: How many cups are there in 1.00 gallon of ice creams?

A: The volume unit conversion between gallon and cups

Q: 4

A: This question is related to mole concept.

Q: A chemist makes 570.mL of zinc nitrate ZnNO32 working solution by adding distilled water to…

A:

Q: How many milliliters of a solution that is 11.21% (w/w) HNO3 with a density of 1.2000 g/mL should be…

A: In the given question, the mass percentage of the solution, the density of the solution is given.…

Q: 22.00 g sample of nitric acid (HNO3) has a purity of 96.20% by mass. Calculate the following: the…

A:

Q: Q2- Find the percentage of aspirin if you know that the weight of salicylic acid is 1 gm and the…

A: Given data,Mass of salicylic acid=1gExperimental yield of aspirin=0.8g

Q: If 12.3 grams of NaOH were mixed with 11.9 grams of HCl, how many grams of NaCl would be produced?

A: The balanced chemical reaction for NaCl formation is already provided: 1 mole of NaOH requires 1…

Q: Select all quantities whose values are exact (contains infinite number of significant figures).…

A: A number that showing perfect exactly value  , it contain infinite number of significant figure.

Q: 4 NH3 (g) + 5 O2 (g) --> 4 NO (g) + 6 H20 (I) When 36.25 g of NH3 was used in a reaction, how many…

A: It is given that 4 moles of NH3 are reacting with 5 moles of O2 to produce 4 moles of NO and 6 moles…

Q: Which of the following equations is set up to convert 312 mg to kilograms? 1 kg 1000 g 1 mg O a) 312…

A: 312 Milligram.  Milligram => mg Kilogram = kg and we have to convert into kilogram

Q: 39. How many grams are in 2.3 x 104 formula units of KNO:? (A) 38.6 grams (B) 102.3 grams (C) 140…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: A solution is prepared by dissolving 49.3 g of KBr in enough water to form 473 mL of solution.…

A:

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

A: The number of moles of a compound is mathematically expressed as: where n, m, and M represent the…

Q: How many grams would 4.904 x 10^22 atoms of Lithium weigh? Show all work and report your answer to…

A: Given atoms of lithium is 4.904 × 10^22 * first we have to convert atoms of lithium into…

Q: A mixture weighing 1.250g is 20% sodium nitrate, 56.0% silicon dioxide, and the rest is sodium…

A: Given that:  Total Mass of mixture = 1.250 g  Mass percent of sodium nitrate in mixture = 20% Mass…

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

A:

Q: */ The liters of water required to prepare gooe ml of fz of Hydrochloric acid solution 2000 mi O…

A: Here, we have to prepare a 2:3 solution of HCl and water. For example, if there is a presence of 2x…

Q: A) How many grams of KClO3 were in the original mixture? Express your answer to three significant…

A:

Q: Determine the mass of oxygen in a 5.8-g sample of sodium bicarbonate (NaHCO3). Express your answer…

A: Given; Mass of sodium bicarbonate (NaHCO3) = 5.8 g Mass of oxygen (O) = ? Note: Molar mass sodium…

Q: You need 8 different masses in the range of 2.50 to 7.00 grams they need to be spread out as evenly…

A: Given: lower range = 2.50 g Upper range = 7.00 g number of masses (n) = 8 common difference = d

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: What is the mass (in g) of each of the following a sphere of zinc witha diameter of 1.26 cm. The…

A: Mass of a substance = Volume of the substance x Density of the substance.

Q: [OH ] [H'] 1.0x103 3.6x10 5 pH РОН 6.21 4.84 5.1x10 3

A:

Q: balance Koh(aq)+h2s(aq) h20(l)+k20(l)+k2s(aq)

A: Answer of this question :-  To balance a chemical equation the atoms of both the elements and…

Q: 122 grams + 250 grams --> 229 grams + ___ grams  what is the last gram?

A: Law is conservation of mass:  According to this, total mass of reactants is equal to total mass of…

Q: how many grams of the hydrochloric acid in 5x10^45 molecules of the substance

A: Since we know that  6.022 ×1023 molecules of any substance = 1.0 mol of that substance . By using…

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".