Calculate the mass percent of 2.50 moles of naoh in 0.900l of water at 25degress Celsius (the density of water is 1.00g/mL at 25c)

Q: 4. What is the percent by mass of water in: a. * BaCl, 2H,0 b. Co(C,H,O,), · 4H,O

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Q: The number of moles of NaCI (sodium chloride) present in 150 mL of 0.0200 mol/L NaCl(aq) is: O a)…

A: In this question, we want to determine the number of moles of NaCl in the Solution. You can see…

Q: What is the mass percent of glucose (MW = 180 g/mol) if 0.0400 moles of glucose is added to 0.500 kg…

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Q: How many moles of water are present in a 20.00 gram sample of potassium carbonate sesquihydrate,…

A: Given that:  Mass of K2CO3.1.5H2O(potassium carbonate sesquihydrate) = 20.00 g Molar mass of K2CO3 =…

Q: A solution of volume (300 ml), and if the solution contains (C6H1206) (Molecules (N)= 3.01x 1023),…

A: Ans

Q: How many moles are present in 56.83mL of O2 if the density of O2 is 0.00133g/mL?

A: Number of moles is given by the ratio of mass of the substance to that of the  molar mass.

Q: The density of bromine is 3.1 g/ml. What would the amount be in mols, of a 25ml sample of bromine?…

A: Answer: Amount of sample of Bromine (Br2) is 0.485 moles

Q: In the spring of 1984, concern arose over the presence of ethylene dibromide, or EDB, in grains and…

A: The mass and moles of EDB in one flour is calculated as,

Q: Calculate the mass of barium chloride necessary to prepare 165 mL of .1M BaCl2

A: Molarity is defined as total no of moles of Solute dissolve in 1000ml of solution moalrity=…

Q: How many pg hydrogen are in 3.39 x 1015 ng of barium hydrogen carbonate hexahydrate?The answer must…

A: Given, Note: 1 ng = 10-9 g mass of barium hydrogen carbonate hexahydrate [Ba(HCO3)2.6H2O] = 3.39 ×…

Q: How many liters of ethylene glycol antifreeze (C;H;O2) would you add to your car radiator containing…

A: Given data: Volume of water = 15.0 L Density of ethylene glycol = 1.1 g/mL

Q: Compound "X" has a density of 1.71 g/L at 755 mm Hg and 25 °C. What is the molar mass of  compound…

A: Density = 1.71 g/L Pressure =  755 mm Hg = 0.993 atm  ( 1 atm = 760 mmHg) Temperature = 25 °C =…

Q: Explain how you determine the mass of CaCl2 (Ksp = 3.7 x 108) that is w licsolve in 35 Lof 0 100M…

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Q: 2NaOH + H2SO4→ → Na2SO4 + 2H2O What is the mole ratio of sodium hydroxide to water?

A: Sodium hydroxide reacts with sulfuric acid to form sodium sulfate and water. The equation for the…

Q: What is the mass % of ethanol in a 2.76 M solution of ethanol

A: %Mass =mass of solute/ mass of the solvent x100

Q: What mass of a concentrated solution of nitric acid (68% HNO3 bY mass) is needed to prepare 400 gram…

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Q: Consider the beer Samual Adams Boston Lager, that has an approximate alcohol content of 4.5. Which…

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Q: 10) How can you prepare 500 ml of 0.1M HCI, if the percentage is 35%, and density = 1.18g/ml,…

A: W = M x Mm x V/1000 Where, W = Mass in g; Mm = Molar mass; V = Volume in mL

Q: Determine the quantity (grams) of pure MgSO4 in 2.4g of MgSO4 x 7H2O.

A: Given: Mass of MgSO4 x 7H2O = 2.4g Molar mass of MgSO4,                                   = 24.3 +…

Q: 2. Calculate the % by mass of water in FeSO4.7H2O.

A: By using molar masses of H2O and molar mass of compound we can calculate % by mass of Water.

Q: How many moles of Ba(OH)2 are present in 275 mL of 0.600 mol L-1 Ba(OH)2? Express your answer…

A: Volume of Ba(OH) 2= 275 ml = 0.275 L Molarity of Ba(OH) 2 = 0.600 mol L —1

Q: How many moles of NaCl are in a 880-mL sample of 1.50M NaCl?

A: Given :-  Molarity of NaCl solution = 1.50 M  Volume of solution = 880 mL  To calculate :-  No.of…

Q: How many moles of NaOH are there in 125.0 mL of 0.445 M NaOH?

A: Molarity can be calculated as follows: Molarity=No. of molesVolume

Q: How many moles of Ba(OH)2 are present in 225 mL of 0.200 mol L Ba(OH)2?

A: Given :-  concentration of Ba(OH)2 solution = 0.200 mol.L-1  volume of Ba(OH)2 solution = 225 mL…

Q: calculate the number of moles of HCI in 5 ml of conc. HCl whose density 1.19.g/cm3 and it contains…

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Q: Density of iPrOH = 786 kg/m^3 molar mass of iPrOH= 60.1 g/mol

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Q: The ratio of Molar masses of C6H1206 and Water is O 1:10 342:18 O 10:1

A: Molar mass for any compound is the mass of 1 mole of compound. The atomic mass of each element is…

Q: Upon decomposition, a sample of sodium bicarbonate produces 0.0118 g of sodium carbonate, Na2CO3.…

A: Given that, a sample of sodium bicarbonate (NaHCO3) decomposed to produce 0.0118 g of sodium…

Q: Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/mol and…

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Q: How many moles of NaOH are there in 125.0 mL of 0.375 M NaOH?

A:

Q: One of the challenges astronauts face is in space travel is the build-up 3. of carbon dioxide in…

A: The balanced chemical reaction can be written as, CO2(g) + 2LiOH(s)→Li2CO3 + H2O  Molar mass of CO2…

Q: What mass of water is required to react with an excess of p4O10 to obtain 35.0g of H3PO4 in the…

A: The solution is as follows :

Q: What is the molar volume of solid quartz, SiO2?(density =2.65g/cm3) (molar volume is the volume…

A: Introduction: Quartz is a crystalline compound with molecular formula SiO2. The structure is framed…

Q: What volume of 1.772 M BaCl2 is needed to obtain 123 g of BaCl2?

A: BaCl2 = Barium Chloride Molecular weight of BaCl2  = Atomic wt of Ba + Cl x 2…

Q: A soft drink contains 39 g of sugar in 303 g of H2O. Part A What is the concentration of sugar in…

A: We have given that Mass of sugar = 39 g Mass of water = 303 g

Q: Determine the mass of 500g of ammonia   % solute by mass 28 density 0.90 g/mL

A: % solute by mass= 28 % This means 28 g of ammonia in 100 g of solution. Density =0.90 g/m

Q: How many grams are in 10.0 mEq of Ca2+?

A: Number of equivalents of a given ion can be obtained by equation given below:

Q: What is the mass percent of ethanol (CH3CH2OH) if 0.0789 moles of ethanol is added to 0.271 kg of…

A: Given :- number of moles of ethanol = 0.0789 mol  Mass of water = 0.271 kg  To calculate :-  Mass…

Q: A Hydrate of cobalt (II) chhloride has a mass of 165.88 g before heating. After heating, the…

A: Given: The mass of a hydrate of cobalt (II) chloride before heating = 165.88 g The mass of the…

Q: Draw the products of each reaction.

A: 1) Since LiAlH4 produces H- ions in solution Hence it will attack and remove the halide ion from the…

Q: If cobalt(II) sulfate is heated too strongly, the following reaction will occur CoSO4(s) à CoO(s) +…

A: The dehydration reaction can be defined as the conversion reaction which involves the loss of water…

Q: use the reaction below to answer the following questions 2CaO + 4C -> 2CaC + O2 a. what volume in…

A:

Q: Which

A: According to this law, when temperature and pressure are constant then volume of gas depends up on…

Q: Ascorbic acid (C&H$O6) is also known as Vitamin C. What quantity in molecules of C6H&O6 does a…

A:

Q: What is the percent of water in : FESO,•6H,O 4

A: Given molecule: FeSO4.6H2O

Q: How many grams of Na3PO4 required to prepare 8 N in 500 ml? O 218.6 gm. O 656 gm. O 323.6 gm.

A:

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".