4. How many moles of water are present in a 20.00 gram sample of potassium carbonate sesquihydrate, K2CO3 12 H2O? 5. How many grams of water would be lost if a 8.000 gram sample of PtCl4 5H20 were heated?

Q: . Consider the reaction. Pb(SO4)2+2Zn⟶2ZnSO4+PbPb(SO4)2+2Zn⟶2ZnSO4+Pb If 0.422 mol0.422 mol of zinc…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: What is the minimum amount of KCN in moles needed to extract 30.0 g (about an ounce) of gold? Au +…

A: What is the minimum amount of KCN needed to extract 30 g of gold ?

Q: 3.109 How many moles of O are needed to combine with0.212 mol of C to form (a) CO and (b) CO2?

A:

Q: If 5.00 moles of MgO were reacted with excess moles of P,Ojo, what mass of Mg(PO4)2 would be…

A: Number of moles of MgO = 5.0 moles

Q: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose(table sugar) when…

A: Since you have posted a question question having multiple subparts, we are entitiled to answer only…

Q: 7B-1. Consider this chemical reaction: P4(s) + 5 O2(g) 2 P205(s) How many grams of diphosphorus…

A:

Q: 2. You start with 2.46 g of KCIO345) and heat it. Use stoichiometry to calculate the mass (g) of KCI…

A:

Q: C6H6 contaminates a water sample. The sample contains 0.000037% of the compound by mass. How much…

A: Mass percent = (Mass of solute/Mass of solution) x 100 Let us consider the mass percent of solution…

Q: Question is attached

A: Limiting reagent It is the reagent that consumes completely in a reaction and determines the amount…

Q: For the reaction: CuSO4 + NH4OH , [Cu(NH3)6]SO4 + HOH, how many grams of [Cu(NH3)6]SO4 can be…

A: Balance reaction: CuSO4 + 6 NH4OH ——> [Cu(NH3)6]SO4 + 6H2O

Q: For the chemical reaction 2KI+Pb(NO3)2---->PbI2+2KNO3 how many moles of lead (ii) iodide (PbI2)…

A: Given, 2.0 mol of potassium iodide (KI)

Q: Decomposition of KClO3 is sometimes used to prepare smallamounts of O2 in the laboratory: 2…

A:

Q: un o 8u described in this laboratory. After heating, the sample is found to weigh 2.245 grams. How…

A:

Q: Need some help to understand how to solve the problem

A: The number of moles of a given chemical substance is defined as the ratio of mass of the substance…

Q: (a) What is the chemical formula of eugenol, the main contri butor to the aroma of cloves? (b)…

A: a) We have to find chemical formula of eugenol, the main contributor to the aroma of cloves.…

Q: Anhydrous CuSO4 can be used to remove water (an impurity) from gasoline. When the CuSO4 absorbs the…

A: Reaction corresponding to absorption of water by copper sulfate is: CuSO4+5H2O→CuSO4.5H2O Hence, 1…

Q: NaN3(s) ------> 2 Na(s)  +  3 N2(g) How many grams of sodium are produced when 2.5 grams of sodium…

A: 2 NaN3(s) → 2 Na(s) + 3 N2(g)  According to the reaction, 2 moles of sodium azide decomposes to…

Q: Suppose 8.70 g of CH4 is allowed to burn in the presence of 15.00 g of oxygen. CH:(9) +202(9)→CO2(9)…

A: Given, the chemical reaction as follows,CH4(g)+2O2 →CO2(g)+2H2Oamount of CH4 for reaction =8.70…

Q: b) If 32grams of water are produced during the combustion of propane, how many moles of propane were…

A: Number of moles = mass/ molar mass

Q: Part 2: The Concept of Limiting Reactant 2. Water is formed by burning H2 (g) in the presence of O2…

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

Q: b) An unknown flavouring contains C, H, and O. When 1.05 g of this substance is completely…

A:

Q: 2. What is the theoretical yield of sodium oxide if you start with 35g of calcium oxide? Сао —> NaCI…

A:

Q: Fe + H20→ Fe3O4(s) + H ²@[ d. If you have 10.0 g of Fe, how many grams of H20 will be needed for a…

A: Mass of Fe given = 10g For this question, we have to balance the equation 3Fe + 4H2O → Fe3O4 + 4H2

Q: If 25 grams of methane, CH 4, and 30 g of ammonia, NH 3, are combined w/ excess oxygen, how much…

A: This question uses the concept of limiting reactant. We will calculate the amount of each reactant…

Q: 2. Methanol burns in air to form carbon dioxide and water: CH;OH + O2 → CO2+ H2O If 209 g of CH3OH…

A: The balanced equation is 2 CH3OH + 3 O2 --------> 2 CO2 + 4 H2O  Molecular weight of CH3OH =…

Q: 7. C,H16 + 02 -- CO2 + H20 8. H2SICI, + H20 --→ H&S¡404 + HCI

A: Balanced the chemical equation--

Q: X

A: Here we are calculating mole by using stoichiometry

Q: Sodium hydrogencarbonate undergoes thermal decomposition as shown. 2NaHCO, → NażCO3 + CO2 + H20 What…

A: Thermal decomposition reaction :-            In this reaction the amount heat energy required to…

Q: 2 C8H10 + 21 O2 ------------> 16 CO2 + 10 H2O   How many grams of O2 are required to produce 7.00…

A:

Q: The eruption of Mount St. Helens volcano in 1980 injected 4 * 108 kg of SO2 into the atmosphere. If…

A: Given data: 4 x 108 kg of SO2   The mole of SO2 is calculated as follows: Mole=massmolar…

Q: A 52-kg woman has 7.2 × 10⁻³ mol of hemoglobin (molar mass = 64456 g/mol ) in her blood. How many…

A: Given mole of hemoglobin = 7.2 × 10⁻³

Q: I. Ferrous sulfate, FeSO. is a compound found in medicines that are used to treat iron deficiency in…

A: Given, Ferrous sulfate hexahydrate FeSO4.6H2O

Q: Liquid nitromethane was once widely used as an explosive but is now much more common as a fuel for…

A:

Q: (a) One molecule of the antibiotic penicillin G has a massof 5.342 x 10-21 g. What is the molar mass…

A:

Q: C8H18(g)+O2(g)→CO2(g)+H2O(g) How many grams of oxygen are required to react with 18.0 grams of…

A: Given - Reaction - C8H18(g)+O2(g)→CO2(g)+H2O(g) mass of octane = 18 g To find - mass of oxygen

Q: 5. Chloral hydrate (C2H3C1302) is a drug formerly used as a sedative and hypnotic. It is a compound…

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

Q: A bottle of the pain reliever ibuprofen (C 13H 18O 2, molar mass 206.3 g/mol) contains 500 200.-mg…

A: Number of moles of a chemical compound is used to express the amount of chemical compound present in…

Q: 2. A synthesis reaction produces ammonia: 3H2(g) + N2(g) -> 2NH3(g). What is the maximum amount of…

A: The amount of product can be determined by the limiting reagent of the reaction. The limiting…

Q: 3. How many grams of Fe,03(6) is needed to completely react with 100.0 g of Al? How much Feu will be…

A: Note - Since you have asked multiple question, we will solve the first question for you. If you…

Q: Burning octane is: C8H16 + 12(O2)......8(CO2) + 8(H2O) How many grams of O2 would you require to…

A:

Q: 6. 45.2 g of Iron metal reacts with excess oxygen gas to produce 58.1 g of Fe3O4. a) What is the…

A: We need to calculate  Theoretical yield Percentage yield Actual yield

Q: - Consider the reaction: 4Al(s) + 302(9) (a) If 9.00 moles of aluminum react with an excess of…

A:

Q: what is the percent of SiO2 in the starting mixture?

A: Percent by mass = (mass of a component in mixture /total mass of mixture) × 100%  Given :- mass of…

Q: If 4.22 x 10-4 moles of Ca2+ were in a 5.00 mL sample of water, how many grams of CaCO3 are in the…

A: Moles of Ca^2+ = 4.22×10^-4mole Volume = 5.00ml = 5× 10^-3litere

Q: The molecular formula of acetylsalicylic acid (aspirin), one of the most commonly used pain…

A: The number of moles is the amount of a compound per its molar mass. The expression for number of…

Q: 5. How many grams of sodium fluoride are produced when 0.789 moles of fluorine reacts with sodium…

A:

Q: How many moles of Mg(OH)2 are present after the reaction is complete? Express your answer in moles…

A: Given 7.55 g of Mg(OH)2 reacted with 25mL of 0.195M HNO3  We have to tell the number of moles of…

Q: 2. Consider the following reactions: Си + 8HNO3 3Cu(N03)2 + NO + 4H20 How many moles of NO are…

A:

Q: A vitamin syrup for infants contains 27.44 mg of zinc sulfate monohydrate (ZnSO4.H2O) and 100.00 mg…

A: 1 mole = 6.022×1023 [ Avogadro's number ] The mass of one mole of molecules of a substance is called…

Q: A 52-kg woman han 7.2 x 10"mol of hemoglobin (molar mass - 64456 glmol)in her blood. How many…

A: No. of mol of hemoglobin = 7.2×10-3 mol Molar mass of 1 mol of hemoglobin = 644.56 g/mol 1 mol of…