A student is running an experiment in which 51.7 grams of BeSO4 is needed, but the only jar of reagent in the lab is labelled beryllium sulfate tetrahydrate. How many grams of the hydrate must the student weigh out in order to get the desired amount of the anhydrous compound? ______ g BeSO4 * 4H2O

Q: For numbers 20-25: Nitric acid is prepared from the reaction of 69.0 grams of nitrogen dioxide with…

A:

Q: A particular oral contraceptive contains 0.033 mg of ethinyl estradiol in each pill. The formula of…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: The hydrogen atoms in 45 g of a sample of ammonium oxalate( NH4)2C2O4 are:Single choice.

A:

Q: It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the…

A: Given: Mass of Ca(NO3)2 hydrate=45.21 g Remaining mass of anhydrous compound=31.41 g

Q: When the compound (Ni (C4H7N2O2) 2) formed in the gravimetric analysis of the 0.5012 gram nickel…

A: It is given that the mass of the sample is 0.5012 gram and the mass of the compound formed is 0.1836…

Q: A sample of pure alumina hydrate was obtained from a bag of flame retardant. A 5.000 g sample of the…

A: Weight of the hydrated aluminum oxide (Al2O3 . xH2O) = 5.000 g Weight of the anhydrous alumina (when…

Q: A sample of a compound with the molecular formula C20H24N2O2 contains 2.75 x 1024 nitrogen atoms.…

A: Molar mass of any substance is the mass of one mole of the substance, which is expressed as g/mol.…

Q: Given the following mixture of two compounds 50.00 mL of X (MW =82.00 g/mol)(density 1.034 g/mL) and…

A: Mass percent or % w/w : It is the mass of solute present in 100g of solution % w/w = Mass of solute…

Q: 3) кон _KOH + H3PO: > K3PO4 + H20 4.677 grams of KOH makes how many grams of KgPO4?

A: 3) given reaction; 3KOH  +  1H3PO4  ------>  1K3PO4  + 3H2O Amount of KOH in the reaction = 4.677…

Q: You are given a sample that contains a mixture of the following two arsenic-containing minerals:…

A: Given: Mass of mixture = 57.38 g Mass of As2O5 formed = 36.03 g Assuming moles of NiAsS in the…

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.

Q: Which of the following does NOT describe 44.0 g of propane, C3H8? a) the amount of propane that…

A: The number of moles of propane, C3H8, equivalent to 44.0 g of propane is; nC3H8=mC3H8MMC3H8=44.0…

Q: Given the following mixture of two compounds 60.00 g of X (MW =63.00 g/mol)(density 1.047 g/mL) and…

A: Mass of X = 60 gm Volume of Y = 680 ml

Q: For the reaction of sodium sulfide with iron(III) chloride below , you have 319.5 kg of sodium…

A: The number of moles of sodium sulfide and iron (III) chloride is 4094 mol and 3097 mol respectively.…

Q: A student is running an experiment in which 70.8 grams of FeCO3 is needed, but the only jar of…

A: FeCO3.H2O MW = 133.845g / mol Given  Required FeCO3 = 70.8g

Q: A student is running an experiment in which 48.1 grams of MgBr2 is needed, but the only jar of…

A: Given Mass of MgBr2 needed = 48.1 g

Q: natural product has the molecular formula C25H34O4. What is the mass of 3.31×108 molecules of this…

A: Molecular weight of the compound is  =(12×25)+(34×1)+(16×4) =398 g/mol Where Atomic mass of C ,H And…

Q: If there were 4.00 x 10^23 sodium ions available, (and more than enough carbonate ions), how many…

A:

Q: How many grams of O are in 565 g of Na, O? mass: g * TOOLS X10

A:

Q: If a sample of urea, CH4N2O is 55% pure, what is the percent by mass of nitrogen in this sample…

A: Given that -  Percentage purity of urea , CH4N2O is = 55%  Molar/atomic masses are -  C = 12.01…

Q: Consider an iron bar on a balance as shown   As the iron bar rusts, which of the following is true?…

A: Rusting of iron is a chemical process in which iron combines with oxygen from the air to form iron…

Q: Be sure to answer all parts. Fermentation is a complex chemical process of wine making in which…

A: Given, the chemical reaction is as follows,C6H12O6→2C2H5OH+2CO2amount of glucose for reaction =805.6…

Q: A mixture consisting of 12.8 g of calcium fluoride and 13.2 g of sulfuric acid is heated to drive…

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: 1.) What is the molecular formula of a compound with the empirical formula CH and a formula mass of…

A: 1 since ,          Empirical formula = CH therefore , Empirical formula mass = 12+1=13  amusince ,…

Q: Given the following mixture of two compounds 65.00 g of X (MW =69.00 g/mol)(density 0.830 g/mL) and…

A: Mass percentage of any substance is expressed as the mass of the substance divided by the total mass…

Q: 212.01) el1.008) Fo-4lo. Potassium manganate is a dark green, crystalline substance whose…

A: The given data contains,       potassium =39.6%      manganese =27.9%      oxygen =32.5%

Q: If 60.2 grams of Hg combines completely with 24 grams of Br to form a compound, what is the %…

A: Given: Mass of mercury (Hg)=60.2 g Mass of Bromine (Br)=24 g The total mass of compound =(60.2 +24)…

Q: You need to convert the copper in 0.2000 g of CuSO4 5 H2O (249.55 g/mol) to Cu(IO3)2 using KIO3.…

A: Reaction between CuSO4.5H2O with KIO3 that give Cu(IO3)2

Q: What is the mass (in grams) of 5.03*10^22 molecules of CO2 molecules?

A: 1 mole = 6.0226 x 1023 Molar mass of CO2 = 44.01 g/mol Given that: Number of molecules of CO2 = 5.03…

Q: A lawn fertilizer is rated as 6.97% nitrogen, meaning 6.97 g of N in 100 g of fertilizer. The…

A: Given: Mass of nitrogen = 6.97 g Mass of fertilizer = 100 g Known: Molar mass of nitrogen = 28 g/mol…

Q: A chemist needs 1.28 g of sodium hypochlorite, NaOCl(s), for an experiment, but she only has sodium…

A: The mass of a compound can be determined by the molar mass of compound and the respective molar mass…

Q: A student is running an experiment in which 43.5 grams of Na2SO4 is needed, but the only jar of…

A: Hydrated salts have water within their crystals when the crystals are formed from water.Anhydrous…

Q: A student finds that they have 0.2545 g of NH4Cl, 1.1502 g of NaCl, and 1.0181 g of SiO2. Calculate…

A: Given  mass of NH4Cl = 0.2545g mass of NaCl = 1.1502 g mass of  SiO2 = 1.0181 g Initial mass if…

Q: C6H1206 + NH3 +1.5 O2 →C;H9NO4+ CO2 + 3H20 (glucose) (glutamic acid) a) If 18 grams of glutamic acid…

A: First of all convert the mass of given compound and then convert it to the mole by using formula :…

Q: If 100. g of iron were reacted with 100.g of oxygen according to the reaction below, the maximum…

A:

Q: How many chloride atoms are in 32.3 g of CaCl2?

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Part C Now that we have put coefficients of 3 in front of CaSO4 and CaCl2, what coefficient should…

A: Given, 3 CaSO4  +  AlCl3                       3 CaCl2  +  Al2(SO4)3     Required,…

Q: An ice freezer behind a restaurant has a freon leak, releasing 48.73 g48.73 g of C2H2F3Cl into the…

A: Given: Total mass of C2H2F3Cl released per week = 48.73 g. And total months passed = 6 months.

Q: Consider the general chemical equation 3A+B→2C. Part A. If 1.45 g of A reacts with 1.75 g of B,…

A: For the reaction: 3A+B→2C No molar mass of any species is provided. So, according to the law of…

Q: In this question: "How many O atoms are in 24.34 g of sucrose, C12H22O11?" Why is the answer not 11,…

A:

Q: You are given a sample that contains a mixture of the following two arsenic-containing minerals:…

A: Given : Mass of mixture = 57.38 g Mass of As2O5 formed = 36.03 g Assuming moles of NiAsS in the…

Q: Determine the mass in grams of 1.6 x 10-3 mol glucose , C6H1206

A: Number of Mole- ratio of given mass of substance to the molar mass of substance is called number of…

Q: A student is running an experiment in which 67.2 grams of CaSeO4 is needed, but the only jar of…

A: We are given a jar of calcium selenate dihydrate. The molecular formula of calcium selenate…

Q: A compound that is composed of only carbon and hydrogen contains 85.7% C and 14.3% H by mass. What…

A: Given data : A compound that is composed of only carbon and hydrogen contains 85.7% C and 14.3% H by…

Q: A student is running an experiment in which 71.1 grams of MnSO, is needed, but the only jar of…

A: Given: The mass of MnSO4 required for performing an experiment is 71.1 g.

Q: The empirical formula of a compound containing carbon, hydrogen and bromine is C₂H₄Br. The molar…

A:

Q: An anhydrous (water removed) salt has a formula mass of 159.265 g/mol. If the hydrated version of…

A: Given, The molar mass of water (H2O) = 18 g/mol. The mass of 5 moles of water (H2O) = 5 x 18 g = 90…

Q: 2.752 g sample of Ca(NO3)2×xH2O is heated to constant mass, the residue weighs 1.941 g. Determine…

A: Given that: Mass of Ca(NO3)2.XH2O = 2.752 g  Mass of residue left after heating = 1.941 g It mean…

Q: Combustion of a 0.9827-g sample of a compound containing only carbon, hydrogen, and oxygen produced…

A: Given, A compound containing only C, H and O mass of the sample of a compound = 0.9827 g mass of C…

Q: 2NH3(g) + 3Cu0(s) N2(g) + 3Cu(s) + 3H20(1) a) If a sample containing 18.1 g of NH3 reacted with 90.4…

A: Limiting reactant :- Reactant which is present in lesser amount than required as per  balanced…

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".