The most common technique used in laboratory to determine the molar mass of a volatile liquid is.?   A. Gravimetry   B. Mass spectrometry   C. None of the above   D. Calorimetery   E. Analytical Balance

Q: answer the following questions based on this chemical reaction. 34.8 grams of copper reacts with…

A: Given,  34.8 grams of copper reacts with 23.9 of silver sulfate to produce silver and copper (ii)…

Q: Refer to tne reactiOH Below 1o ans Items HBr- -> --- CIH CIM CIH

A: ->One double bond required one mole of HBr .

Q: 6. What is the percent by mass of nitrogen in ammonium carbonate? a. 14.53% b. 27.83% c. 29.16% d.…

A:

Q: 1. Set up and explain how to solve a problem according to the GUESS method (no calculation)

A: Hello, since your question has multiple subparts, we will solve the first question for you. If you…

Q: 7.0 g of nitrogen atoms contains     a.1 molar mass of nitrogen atoms b.2 molar mass of nitrogen…

A: As we know that, 1 mol of nitrogen atom contains 14 g of nitrogen. (Molar mass of N = 14 g/mol )…

Q: Would the calculated percentage of the hydrate in a sample be too high, too low, or unaffected by…

A: The mass of water lost/the original mass of hydrate used is equal to the fraction of water in the…

Q: How many conversions are needed to go from mass (g) of the given to Mole (Y) of the find ?

A: We have been asked to find the no. Of steps needed to go from mass to mole of a compound.

Q: 1. balanced chemical reaction 2. % composition by mass of each compound 3. mass to mass…

A: Given: mass of cream of tartar = 1.5 kg = 1500 g mass of sodium carbonate monohydrate = 2.5 kg =…

Q: w moles of

A:

Q: Describe the procedure for interconverting mass and number of formula units?

A: Formula unit is determined for the ionic compound as the number of cations and anions present in the…

Q: If you forget to weigh the calorimeter and contents at the end of a Part 1 run, you will: Select…

A: While performing an experiment, human errors must be avoided. For that, the experiment must be…

Q: What is the a.) Balanced Chemical Reaction b.) percent (%) composition by mass of each compound…

A: Molecular formula of calcium polysulphide = CaS5 Molecular formula of hydrochloric acid = HCl The %…

Q: When potassium chlorate is burned, potassium chloride and oxygen are formed. A.) Write a balanced…

A:

Q: Hydrogen gas and nitrogen gas react to give ammonia gas. How many moles of hydrogen are needed to…

A: In a chemical reaction, when number of atoms of each element present in reactants are equal to…

Q: A 0.4230 g sample of impure sodium nitrate (contains sodium nitrate plus inert ingredients) was…

A:

Q: Which of the conversion factors is the "center piece", middle step, or "step # 2" of every…

A: Stoichiometry is a fundamental concept in chemistry that deals with the quantitative relationships…

Q: 6. How many moles of calcium will react with 2.00 grams of:

A: the balanced equation of Ca with each acid is given below  a. Ca +  2 HCl  -------- >  CaCl2   +…

Q: If 2.784 grams of silver oxide are decomposed to yeild 2.592 grams of silver how mant grams of…

A:

Q: 20. According to the law of conservation of mass: A. energy will be lost during every endothermic…

A: We have been asked the defination of law of conservation of mass

Q: MA 58. How many moles of Fe₂O3 are produced if you begin with 5.6 moles of Fe? 9.Lem X 2 1 Zm 59. If…

A: 58) Given, 4 Fe + 3 O2  ➝ 2 Fe2O3 moles of Fe react = 5.6 moles moles of Fe2O3 produced = ?

Q: How many moles equate to 128 g of CO2? A. 2.91mol B. 15.6mol C. 5.82mol D. 24.6mol

A: Given : Mass of CO2 = 128 g

Q: 8) 1.23 x 1024 molecules CO

A:

Q: Lab This procedure is one type of redox titration known as an iodometric analysis. In the first…

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

Q: Your lab partner asks "How do I convert from moles of CO2 to grams of CO2?" What do you tell him?…

A: What is mole? Mole is the number of the atom/ molecule/ions which equal to 6.022 × 1023(Avogadro's…

Q: 4. 28 mL of a 2.44 M solution of iron(III)nitrate is mixed with 24 mL of a 2.16 M solution of…

A: Concentration of Fe(NO3)3 = 2.44 M  Volume of Fe(NO3)3 = 28 ml  mmoles of Fe(NO3)3 = 28 x 2.44 =…

Q: How many molecules of magnesium hydroxide are produced from 0.960 mole of magnesium oxide?

A: One mole of compound contains Avogadro number of its molecules. Avogadro Number = 6.022 × 1023

Q: Please also mention how many of each. Write and balance: hexane burns in oxygen to form carbon…

A:

Q: 5. 2 moles of silver times 3 moles of barium per mole of silver equals: Must include units! 6. 27.3…

A:

Q: Match each term to its description. Match Term Definition Excess reactant A) Reactant that can…

A: As shown in the question, match the correct option----

Q: O What m completely

A: Given  Number of moles of HCl = 0.2768 mol  We have to calculate the mass of sodium hydroxide…

Q: What statements are always true about limiting reactants? Select one or more: a. There will be an…

A: Limiting reactants : It is the reactant in the chemical reaction which is completely consumed for…

Q: during an experiment to determine avogadro's number 4 trials were recorded. what is the average…

A:

Q: How many Oz molecules are needed to react with 5.99 g of S? Express your answer numerically in units…

A: When elemental S reacts with O2 gas, the reaction can be written as follows;    S  + O2  ----->…

Q: Stoichiometric calculations mean: .A Gram atomic weight .B Gram formula weight .C Gram molecular…

A: Given in following question stoichiometric calculation means a.)gram atomic weight b)gram formula…

Q: Treatment of Data   Mole amount of Na2Cl3 - Moles Na2CO3 =  Mole amount of CaCl2- Moles of CaCl2 =…

A: All the details are explained in handwritten solution.  Molarity = moles / Volume (L) Moles = mass /…

Q: 9.to convert from moles of A to grams of A you use the ___________ a.Molar Mass b.Mass Ratio c.Mole…

A:

Q: 4.0 g of oxygen contains   A. 0.025 molar masses   B. 4.0 molar masses of oxygen   C. .02 x…

A: Here there is Oxygen atom so atomic mass is 16 g mol-1.

Q: How many moles are produced of Aluminum chloride when 3.76moles of Au

A: Consider the given balanced reaction is as follows; 2 Au s + 3 Cl2 g ⇌ 2 AuCl3 g Moles of Au = 3.76…

Q: 7. How many moles are in 50 grams of Platinum?

A: Ans:7  The number of moles of compound present in a given amount can be calculated by dividing the…

Q: 0. Toilet bowl cleaners often contain hydrochloric acid to dissolve the calcium carbonate deposits…

A: Given that,  Mass of HCl = 5.8 g  We need to find the mass of CaCO3 in grams that can be dissolved…

Q: A compound of found to contain 37.47% carbon, 12.61% hydrogen, and 49.92% oxygen by mass. What is…

A: the empirical formula for this compound = CH4O

Q: A 0.4230 g sample of impure sodium nitrate (contains sodium nitrate plus inert ingredients) was…

A: Given data : Mass of sodium nitrate(NaNO3 )= 0.4230g  Mass of sodium nitrite (NaNO2) = 0.2588g…

Q: The

A: We have to fill the blanks

Q: The % sulfur in sulfur dioxide is

A: The atomic mass of Sulfur =32 g The atomic mass of Oxygen =16 g So, the mass of compound SO2=32+16×2…

Q: sulfur and oxygen react in a combination reaction to produce sulfur trioxide an environmental…

A:

Q: copper and nickel can be mixed to for corrosion resistant alloy. if a particular alloy is prepared…

A: Given that  Moles of copper = 10.7 Moles of Ni = 1.2

Q: 2500 moles of dissolved silver nitrate is mixed with .2500 moles of dissolved sodium carbonate to…

A:

Q: How many moles of sulfate ions are contained in 0.420 moles of aluminum sulfate?   A. 0.140 moles…

A: Only 1st question is answered according to the policy