A student is running an experiment in which 43.5 grams of Na2SO4 is needed, but the only jar of reagent in the lab is labelled sodium sulfate heptahydrate. How many grams of the hydrate must the student weigh out in order to get the desired amount of the anhydrous compound?

Q: Calculate the number of grams of sodium in 8.2 g of each of the following sodium-containing food…

A: Given compounds are : a). NaCl (table salt) b). Na3PO4(sodium phosphate) c). NaC7H5O2 (sodium…

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: Why does the mass of the pennies change after treatment with:  Zn/NaOH solution Flame of a Bunsen…

A:

Q: that shows the formation of cyclohexane from the elements carbon (C) and hydrogen (H2 ).

A: Applying hydrogenation of benzene.

Q: the mass of 1 gallon of gasoline is about 2.7 kg. Assuming the gasoline is entirely octane, C8H18,…

A: Given The mass of 1 gallon of gasoline is about 2.7 kg or 2700 grams and the gasoline is entirely…

Q: Equivalent weight of Al(OH)3 is а. 39 g O b. 27 g O c. 78 g O d. 26 g

A: Option d) 26 g

Q: 8 KCIO3 + C12H22O11 → 8 KCI + 11 H2O + 12 CO2

A: We have to tell about reactants in this question .

Q: What is the empirical formula for C4H1002? O C2H50 O CHO O C2H40 O CH20 CHO2

A: the empirical formula of C4H10O2 is

Q: What is the number of molecules in 319g of Li2SO4? (Take NA = 6

A: Mass of Li2SO4 = 319 g  NA = 6 x 1023 .  Number of Molecules = ?

Q: What mass of H2SO4 is produced from 6.58 g of SO3 and 1.64 g of H2O?

A: Given that there are 6.58 g of SO3 and 1.64 g of H2O to produce H2SO4

Q: what is the mass percent of each component in the mixture formed by adding 12 g of calcium sulfate ,…

A: Total mass of the mixture can be calculated as follows: Total mass = Mass of CaSO4+Mass of…

Q: Calculate the % composition of dextrose ( or glucose), C6H12O6

A: The molecular formula of glucose is C6H12O6, from the formula it is clear that 1mole of dextrose…

Q: 2. Making a cheese sandwich can be represented by the chemical equation%; Bd, + 2Ch > 2BdCh What…

A: According to the reaction, Bd2 + 2Ch ----> 2BdCh   2 bread slices combine with 2 cheese slices to…

Q: The equivalent weight of CUSO4.5H2O is A- 79.75 B- 249.5 C- 124.75

A: The equivalent weight of CuSO4.5H2O has to be given.

Q: When writing formulas for compounds, What do the parenthesis mean?   Co(C2H3O2)2  I'm supposed to…

A: The parenthesis is used to represent a group of atoms present together. The example mentioned is…

Q: How many grams of nitrogen are present in a 0.25 g sample of adrenaline, a hormone secreted into the…

A:

Q: 3. Law of Conservation of Mass. (a) In a combustion reaction, 46.0 g of ethanol reacts with 96.00 g…

A:

Q: A particular carbohydrate has the empirical formula CH2O and a molar mass of 175 ‒ 185 g/mol. What…

A: Molecular formula of any compound can be written in terms of its empirical formula as Molecular…

Q: What is the mass of one mole of ethyl alcohol

A: Mole is defined as a) Interms of particles :       1 mol = 6.022 x1023 particles/entities  Where…

Q: Describe the PHYSICAL PROPERTIES of the following Specifically, what type of matter is this? (e.g.…

A:

Q: iven 45moles of C2H8  how many grams of this substance do I have

A: To find out the mass of the given compound, formula used is as written below: Mass of compound =…

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: ?Which of the following are nonelectrolytes in water HF (1) ethanol, C2H5OH (ii) C12H22011 (ii)…

A: Electrolytes are substances that dissolve in the solvent like water by forming ions. The formation…

Q: what is the mass of the anhydrous compund?

A:

Q: Question is attached

A: A mixture has at least two components, when they are mixed, there are two possibilities arise. One…

Q: hat’s the mass of Na2SO4 can be produced from 33.2 g of H2SO4 and 17.1 g NaC

A: The reaction is, H2SO4+2NaCl→      Na2SO4+2HCl To calculate the mass of Na2SO4 produced in the given…

Q: Use the equation in the Example box on page 34 of the lab manual to answer this question. For a 100…

A: The question is based on reaction stoichiometry. we have to calculate mass of phosphorus pentoxide…

Q: Br CF3CH,OH ?

A: This is an example of nucleophilic substitution reaction (SN¹). in first step,  loss of bromide ion…

Q: 2Na + Cl2 → 2NaCl. If I want to make 100.0 g of salt, how much elemental chlorine would I need?

A: First convert mass into molar mass  Then use mole-mole relationship  After getting mole of  Cl2 then…

Q: What number of atoms of nitrogen are present in 6.19 g of each a. glycine: C2 H; O2N atoms N

A: Moles of any compound or molecule is found by the formula mass of molecule divided by its molar mass…

Q: There are more molecules of H2O in a cup of water there are cups of water in the entire ??

A: Water has a molecular weight of 18 (with some approximation), which gives it a molar weight of 18…

Q: ane (C8H18) is a component of gasoline and combusted ac

A: Amount of energy released or absorbed during a chemical reaction  If energy is released then heat of…

Q: How much C2H4N2 could be expected from the reaction of  14.7 g CO2, 2.27 g NH3,  and 1.67 g CH4?

A:

Q: What is the mass of Cu(C2H3O2)2 ✕ H2O?

A: Molar mass of Cu(C2H3O2)2 .✕H2O = (63.5 x 1) + (12 x 4 + 1 x 6 + 16 x 4) + (18 x X) = 63.5 + 120 +…

Q: What is the correct balanced equation for octane (C8H18)?

A: The balanced chemical equation for the oxidation of Octane (C8H18) C8H18(g) + 252O2(g) →8CO2(g) +…

Q: What is the formula weight of ibuprofen, C13H18O2? 206.285 g 112 g 90.649 g 190.285 g

A: Molecular weight is equal to the sum of the mathematical product of the mass of each element present…

Q: Enter your answer in the provided box. Calculate the molar mass of a particular polyethy lene…

A:

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 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: 2. Sakura is launching a new line of porcelain merchandise. She wants to figure out how many grams…

A: Sakura is launching a new line of porcelain merchandise. She wants to figure out how many grams of…

Q: Calculate the number of carbon atoms in 1.27 gg of table sugar, C12H22O11C12H22O11.

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

Q: A compound with a composition of 85.62% C and 14.38% H, and a molecular weight of 56.06 g/mol

A: Composition of carbon and hydrogen are given. Considering total mass of the given compound, the…

Q: When sodium carbonate, Na2CO3Na2CO3, dissolves in water, what ions are produced?

A: Sodium carbonate Na2CO3 is a salt. It is also called soda ash, when it is dissolve in water there is…

Q: a. Account for this fact: Although methanol (CH3OH) (bp, 64.7 °C) has a higher molar mass than water…

A: Solving the following 2 objective questions :  Hydrogen bonding - occurs in the molecules where H is…

Q: What is the mass of a drop of methanol containing 2.90x1022 CH3OH molecules

A:

Q: How do I find the number of oxygen atoms present in 33.0g of glucose, C6H12O6?

A:

Q: H30 H20 Hydrade.

A: The reaction taking place is given as,

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".