Elixirs such as Alka-Seltzer use the reaction of sodium bicarbonate with citric acid in aqueous solution to produce a fizz: 3NAHCO3 (aq) + C, Hs O7 (aq) 3CO2(g) + 3H20(1) + Na; C6 Hs O7 (aq) a. What mass of C6 Hg O7 should be used for every 3.4 x 10 mg NaHCO3?

Q: Most chemistry laboratories have balances that can weigh to the nearest milligram. Would it be…

A: Given,  Molecules of C18 H38 = 5.88E+18 molecules The mass of C18 H38 is:

Q: Consider a mixture of 10 billion O2 molecules and 10 billion H2 molecules. In what way is this…

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Q: An empty erlenmeyer flask weighs 241.3 g. when filled with water (density - 0.997 g/mol), the flash…

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Q: Boron has two naturally occurring isotopes, ¹⁰B (19.9%)and ¹¹B (80.1%). Although the B₂ molecule…

A:

Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Given,  Formula of hydrate copper(II) chloride = CuCl2.xH2O Mass of crucible = 16.221 gMass of…

Q: If 44.0 g of molten iron(III) oxide reacts with 35.0 g of aluminum, what is the mass of iron…

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Q: Find the percentage of nitric acid if you know that 9.777 G has been diluted with water to a liter…

A: GivenNormality of NaOH solution =.104 Nvolume of NaOH=25 mLVolume of HNO3 used in neutralization…

Q: 5. A 2.000 g sample of CoCl2·xH2O is dried in an oven. When the anhydrous salt is removed from the…

A: By calculating moles of CoCl2 and H2O we can find value of x.

Q: The percentage by mass of nitrogen is 46.7% for a species containing only nitrogen and oxygen.…

A:

Q: What mass of HCl in grams is neturalized by a dose of milk of magnesia containing 3.26g Mg(OH)2?

A: Given :- mass of Mg(OH)2 = 3.26 g  To calculate :- mass of HCl (in g)

Q: One mole (molecular equivalent) of gold has a mass of 196.9655 g.  One mole of anything equals 6.022…

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Q: NH3(aq) + CO2(aq) → CH,N20(aq) + H20(1) n an industrial synthesis of urea, a chemist combines 32.1…

A: Given that, mass of ammonia, and mass of Co2. And limiting reagent is asked.

Q: In an experiment 0.500 gg of copper reacted with oxygen to give 0.563 gg of copper oxide. What is…

A: Answer 1:       Mass percentage of copper in copper oxide = given mass of coppergiven mass of copper…

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A: The ratio of moles of any two substances in a balanced chemical reaction is called molar ratio.…

Q: Caffeine, a stimulant found in coffee, contains 49.5%% CC, 5.15%% HH, 28.9%% NN, and 16.5%% OO by…

A: Mass percentage of constituent elements of caffeine in the molal mass of 195 g/mol are: 49.5% by…

Q: why at the end do you write mass of O2, but then didn't do 32g as the multiplier?

A: To calculate mass of O2 , first moles are calculated and then 32.0 g/mol would be used as multiplier…

Q: Part B. 4. Volume of a Drop of Water Number of drops (10) 10 Mass of flask + watchgiass + 10 drops…

A: A numerical problem based on dimensional analysis, which is to be accomplished.

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A: Given: Mixture of metal X and Z. And mass percent of X and Z in the mixture.

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Q: Commercial sodium "hydrosulfite" is 90.1% Na2S2O4. The sequence of reactions used to prepare the…

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Q: 6 NaOH + 2AL --> Na3 ALO3+3H2 what volume of hydrogen gas can be prepared from 5.40 grams of…

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Q: Iron is found in Earth's crust as seve pounds. Calculate the mass (in kg) c contains 1.0 X 10° kg of…

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Q: A lawn fertilizer is rated as 7.55% nitrogen, meaning 7.55 g of N in 100 g of fertilizer. The…

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

Q: Al,(SO.); Al: S: O: NaOH Na: 0: H: (NH,),S N: H: S: DO IT LIKE THE GIVEN EXAMPLE EXAMPLE 1) CuBr2…

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Q: Lithium nitride reacts with water to produce ammonia and lithium hydroxide according to the equation…

A: Given,ND3 = 140 mg (or) 0.14 gMolar mass of ND3 = 20.042 g/molMolar mass of D2O = 20.027 g/mol

Q: *(ii) The reaction of ethene with aqueous potassium manganate(VI), KMNO, produces ethane-1,2-diol,…

A: Mass spectrum is used for the separation of ions and fragmentation of ions takes place in the…

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Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

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Q: The percentage composition of acetaldehyde is 54.5% C, 9.2% H, and 36.3% O, and its molecular mass…

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Q: 14. The fertilizer ammonium sulfate [(NH,),So,] is prepared by the reaction between ammonia (NH3)…

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Q: barrels of toluene are being stored on the moon for use in onsite manufacturing. If each barrel…

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Q: 39.) number of moleeules? a. 4.75 mmol of phosphire, PHs a 4.75g of phophney PHs e. 1.25 x10 g eof…

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Q: A bottle of a tile cleanser contains 135g og HCl and 775g of water. What is the percent by mass og…

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Q: A compund with the formula M(NO3 )2 contains 53.4% oxygen by mass. What is the identity of element…

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Q: How many total atoms are there in one formula unit of Cr(Cr2O7)3?

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Q: How many g of water you need to add into HCl solution (V= 130.0 cm3 mass percentage 22.0 % (w/w),…

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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".