A student is running an experiment in which 67.2 grams of CaSeO4 is needed, but the only jar of reagent in the lab is labelled calcium selenate dihydrate. How many grams of the hydrate must the student weigh out in order to get the desired amount of the anhydrous compound?

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

A: The 1st mixture contains 10 billion or 109 O2 molecules and H2 molecules. The 2nd mixture has 109…

Q: A student is running an experiment in which 51.7 grams of BeSO4 is needed, but the only jar of…

A: In the lab the beryllium sulfate present at beryllium sulfate tetrahydrate. The mass of BeSO4 needed…

Q: E4. If aluminum (Al), with an atomic weight of 27, combines with oxygen (O), with an atomic weight…

A: The balanced reaction of the formation of Al2O3 is as follows: Atomic weight of Al = 27 g/mol…

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: Barium chloride dihydrate has the formula BaCl2  ·  2H2O. Assume there is another hydrate (BaCl2…

A:

Q: Consider the chemical formula for one molecule of methane, CH4. If instead of one molecule we had 10…

A: According to chemical formula of methane ( CH4 ) , it's very clear each molecule of methane has one…

Q: Iron is found in Earth’s crust as several different iron com-pounds. Calculate the mass (in kg) of…

A: 1.0  103 kg of iron. Fe2O3 (hematite) Fe3O4 (magnetite) FeCO3 (siderite)

Q: hat is the mass in kilograms of 5.6 x 1027 molecules of carbon tetraiodide

A: The number of moles is the amount of an atom present in the compound containing that atom. It is…

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: In one process, 124 g of Al reacts with 601 g of Fe2O3, what is the mass of Al2O3 formed? 2Al +…

A: The given reaction is  2Al + Fe2O3=Al2O3 + 2Fe Moles of Al =124/27 =4.6moles Moles of Fe2O3 =601/160…

Q: Which titanium-containing mineral, rutile (Ti O 2 ) orilmenite (FeTi O 3 ), has the larger…

A:

Q: Calculate the percentage by mass of the indicated element in the following compounds: (d) platinum…

A: The mass percentage of an element in the given molecule can be determined by the molar mass of a…

Q: What is the molar mass of N2O4? Na2SO4? C6H10O2?

A: 1. Molar mass is a quantitative method to calculate the total mass of all the atoms associated for…

Q: A tablet of Tylenol has a mass of 0.611g. It contains 251mg of its active ingredient, acetaminophen,…

A: Mass percent of acetaminophen is equal to the mass of acetaminophen divided by the mass of tablet…

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

A:

Q: A mixture was found to contain 1.50g NH4CI, 0.80 g NaCI, and 1.20 g SiO2. What is the percentage of…

A: Given: Mass of NH4Cl = 1.50 g Mass of NaCl = 0.80 g Mass of SiO2 = 1.20 g

Q: How many Moles of magnesium phosphate do you have if you have 8.257 x 10^25 phosphate ions

A: Divide ion by Avogadro number to get mole

Q: Which of the following items has the greatest number of carbon atoms? A. 2.71 x1022 molecules of…

A: Calculate in which one having greatest number of carbon atom ?

Q: A drop of water, H2O, has a volume of approximately 0.050 mL. Assuming that the density of water is…

A: Given volume of 1 drop = 0.05 ml density of 1 drop = 1 g/ml number of drops = 3

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: 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: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Paris green is a highly toxic emerald green compound with the formula Cu(C2H3O2)2 x 3Cu(AsO2)2. What…

A: Given             The formula of the Paris green

Q: A sample of glucose, C6H12O6, contains 1.240×1021 carbon atoms. Part A: How many atoms of hydrogen…

A:

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl6(PO4)+(OH):"4 H2O.…

A: Interpretation : Following questions need to be solved .

Q: (c) mass, in grams, of 1.50 x 102 mol CdS

A: Dear student I have given answer to first three subparts of question 5. I can't answer other subpart…

Q: A patient is having an allergic reaction and takes a 12.5mg tablet of the over‑the‑counter…

A: The mass of the tablet is = 12.5 mg = 12.5 x 10-3 g The molecular formula of diphenhydramine…

Q: What is the mass in grams of 5.57 × 10¹⁵ molecules of SO₂?

A: We know that , 1 mole = 6.023x1023molecules/atoms/ions.1 mole = molar mass of molecule .6.023x1023…

Q: Arrange the following substances in order of increasing mass percent of carbon.a. caffeine.…

A: The given substances should be arranged in increasing mass percent of carbon. The molar mass of…

Q: Arrange the following substances in order of increasing mass percent of carbon. a. caffeine.…

A:

Q: 1.Glucose is an important biological molecule with the molecular formula C₆H₁₂O₆. What is its…

A: 1.Glucose is an important biological molecule with the molecular formula is C₆H₁₂O₆. An empirical…

Q: the formula for disulfiram decafluoride is S2F10   A.How many molecules are in 1.35 grams of…

A: A.

Q: The molecular formula of aspirin is C9H8O4. How many aspirin molecules are present in one…

A:

Q: Calculate the mass of 3.62 x 104 molecules of glucose (C,H1206).

A: Given that :Molecules of glucose (C6H12O6) = 3.62×1024 molecules Mass of glucose =?

Q: The molecular formula of allicin, the compound responsiblefor the characteristic smell of garlic, is…

A: Molar mass of a compound is the sum total of molar masses of the elements present in that particular…

Q: c) For erythrosine, a food coloring, C20H6L4N22O5, how many hydrogen atoms would be present in the…

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

Q: The relative mass of propylene (C₃H₆) is 42.1 g/mol. How many carbon atoms does a polypropylene…

A: Given data is: Molar mass of polypropylene = 42.1 kg/mol 42.1kg1 mol×1000g1kg=42100g/mol formula of…

Q: Stibnite, Sb2S3, is a dark gray mineral from which antimony metal is obtained. What is the mass…

A:

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

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: hat is the molecular formula of a compound containing 24.27 carbon, 4.07% hydrogen and 71.76%…

A: Given  Carbon = 24.27%  Hydrogen = 4.07%  Chlorine = 71.76%  Molar mass = 98.96 g/mol  Atomic weight…

Q: The number of molecules in 56 grams of water are(Take 6.022*1023=NA

A:

Q: What is the mass in grams of a molecule of diethyl ether?

A: The structural formula of diethyl ether is (C2H5)2O. The molecular weight of diethyl ether can be…

Q: What is the mass of a single molecule of sugar (C6H1206) in grams?

A: Given - 1 molecule of sugar C6H12O6 Avogadro's number  = 6.022 x 1023 molar mass of C6H12O6 =…

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: Dichlorobenzene has a molecular formula of C6H4Cl2 (MW=147.00 g/mole).      What mass of…

A: Given, dichlorobenzene 1.81x1024 total atoms

Q: 5. Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when…

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

Q: 01.)What is the molecular formula of a compound with the empirical formula As2O5and a formula mass…

A: Given values are,  Empirical formula= As2O5 And formula mass = molar mass= 459.678 amu Now from…

Q: How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 145 mL of…

A: In order to calculate number of molecules of ethanol, first we have to calculate the number of moles…