2. CONVERT THE FOLLOWING INTO Moles (a) 20g of NaOH (b) 5g of Ca(OH), (c) 3L of Og (d) 2.5L of N,g

Q: number of moles of (c)  acetate ions, CH3COO-, in 0.43 mol of Ca(CH3COO)2.

A: 2) In 1 mol of Ca(CH3COO)2 has 2 moles of  CH3COO- ion.

Q: A fertilizer is advertised as containing 14.0% nitrogen(by mass). How much nitrogen is there in…

A:

Q: Epsom salts, a strong laxative used in veterinary medicine,is a hydrate, which means that a certain…

A: A compound which has definite amount of water is present in the form of H2O molecule, is called…

Q: 2- Calculate the empirical fomula of the compound composed of 38.67 % C, 16.22 % H, and 45.11 %N by…

A: To calculate the empirical formula we have to calculate the number of mole of each elements in the…

Q: What mass of Cu(IO3), can be formed from o. 500 g of CUSO4 5H,O?

A:

Q: A chemist requires 0.422 mol Na2CO3 for a reaction. How many grams does this correspond to?

A:

Q: Our bodies synthesize protein from amino acids. One of these amino acids is glycine, which has the…

A: First calculate the molecular mass of the compound from given molecular formula.

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

A:

Q: a. Determine the molar mass of potassium phosphate and ammonium phosphate. K3PO4 (NH4);PO4 b.…

A: The objective of the question is to determine the molar mass and mass percentage of phosphorus.

Q: 9.) How many moles of glucose, C6H1206 are in: (a). 538grams (b.) 1.00 grams of this substance?

A: The molar mass of a compound is furnished as the mass occupied by one mole. Hence the ratio of the…

Q: A sample is found to contain 66.8% NaHCO3 by mass. What is the mass of NaHCO3 in 4.25g of the…

A: Mass percent :- The mass of a substance present in 100 grams of sample is called its mass percent .…

Q: From the previous question convert 159.8 of Br2 to moles of Br2 O 1 mole of Br2 O 3 moles of Br2 O 2…

A: Molar mass of Br2 = 159.8 g/mol Moles of Br2 = mass of Br2 in g / Molar mass of Br2 in g/molGiven…

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst to produce ammoni…

A:

Q: How many molecules (not moles) of NH3 are produced from 2.21*10^-4g of H2?

A: Given:Mass of H = 2.21 X 10-4 g of H2We need to find the number of molecules (not moles) of NH3 are…

Q: C4H10 and C6H12 are both hydrocarbons. Whic one contains higher mass percentage of carbon?

A:

Q: For the reaction, N2 + 3H2 → 2NH3, if 0.125 mole of N2 reacts, how many moles of H2 will be used?

A:

Q: If we started with 5,280g KClO3   what would be the total mass of the products (g KCl + g O2)?

A: Given, weight (KClO3) =5,280g We have to find the weight of product weight (KCl)= ? weight (O2) =?

Q: Consider the mixture of propane, c3h8 and o2 a. What is the percent, by mass, of carbon in propane?

A: The molecular formula of propane is = C3H8 The mass percent of the carbon in propane is =?

Q: How many g of C4H4S2 are equivalent to 5.40 moles of this compound?

A: Answer: 627.48 g

Q: a- Determine the mass in grams of 2.6 mol of backing Soda, NaHCO; ↑ b- How many moles of penicillin…

A:

Q: a. What is the mole ratio between BaSO4 and Fe,(SO3? b. How many moles of BaSO, can come from 0.557…

A: The ratio between the amounts in moles of any of the two compounds involved in a chemical reaction…

Q: One mole of hydrogen peroxide, H2O2, would consist of how many molecules?

A: Given : Moles of H2O2 = 1 mol

Q: A complete combustion of octane, C8H18, a component of gasoline, proceeds as: 2 C8H18(I) +25 O2(g)…

A:

Q: Converting Mass to Moles using Molar Mass I  A sample of chloroethane, C2H5Cl, mass of 18.5 g. What…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: finding the number of moles of Zn(OH), produced i

A: To find the correct set up we need to correlate  Zn and Zn(OH)2 in terms of moles

Q: Starting with, 1.5052g of BaCI2 2H20 and excess H2SO4, how many grams of BaSO4 can be formed?

A: Number of moles of a substance refers to the ratio of given mass of the substance to the molar mass…

Q: N2(g) + 3 H,(g)→2 NH;(g) How many moles of NH, can be formed from 3.0 mol of N, and 6.0 mol of H,?

A: Given reaction is : N2 (g) + 3H2 (g) ---------> 2NH3 (g)  Moles of N2 = 3.0 mole  Moles of H2 =…

Q: Calculate the number of moles molecules in: ct an a) 10 g water b) 10 g ethanol C,H,O c) 10 g of…

A: Formula Used, 1. molesn=given massMolar Mass 2. Molecules = Moles x 6.023 x 1023

Q: An experiment requires that enough PNCl2 be used to yield 10.3 g of chlorine. How much PNCl2 must be…

A: Answer: 16.84 g

Q: d. What is your theoretical yield of BeH2 in moles? e. What is your theoretical yield of BeH₂ in…

A:

Q: How many moles of carbon dioxide (CO2CO2) are in 34.9 g34.9 g of the compound?

A: Given:Mass of CO2 = 34.9 gMolar mas of CO2 = 44.01 g/mol.

Q: b. 4.25 x 10-2 mol of H2SO4 to molecules of H2SO4

A:

Q: How many moles of sucrose, C12H22O11, are in a 25-g sample of sucrose?

A: The atomic mass of , C = 12                                    H = 1…

Q: How many g of iron are required to use up all of 25.6 g of oxygen atoms (0) to form Fe,03?

A: Given reaction,       4 Fe +  3 O2 → 2 Fe2O3

Q: A 0.3459 g tablet that contains bicarbonate generates 1.24 x 10−3 moles of CO2. What is the percent…

A: Given information,    Mass of tablet is 0.3459 g    Moles of CO2 is 1.24 x 10−3

Q: How many grams of hydrogen, H2, are produced from 29.3 g of aluminum, Al?

A: Given Synthesis of H2 from Al

Q: What is the percent by mass of phosphorus in PCI3?

A:

Q: Solve this problem

A: In a balanced chemical equation, the number of atoms of the reactant should be equal to the number…

Q: 2. What is the actual yield of the product?

A: Actual yield is  defined as the amount of a product that is formed from a chemical reaction

Q: How many molecules (not moles) of NH3 are produced from 8.33×10−4 g of H2?

A: The balanced chemical reaction for the formation of NH3 from H2 and N2 can be written as follows:

Q: How can I get the mass of NaCl, g? How can I get the mas of SiO2,g?

A: It is given that the observations shown in the table are recorded and the mass of NaCl and SiO2…

Q: This reaction makes potassium superaxide useful in a self-contained breathing apparatus. How much Oz…

A: First calculate moles of KO2 and CO2. Then use mol to mol ratio to check which compound forms less…

Q: 3. How many moles of CaCO, are present in 1.30 grams?

A: Avogadro's defined 1 mol as the collection of 6.022 × 1023 atoms or the ratio of given mass to the…

Q: 2. How many MOLES of fluorine are present in 5.25x1022 molecules of nitrogen trifluoride ? moles of…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Which contains the greatest mass of oxygen: 0.75 mol of ethanol (C2H5OH), 0.60 mol of formic acid…

A: Given: Moles of ethanol=0.75 molmoles of formic acid=0.60 molmoles of water=1.0 mol

Q: Methane and ethane are the two simplest hydrocarbons.What is the mass % C in a mixture that is 40.0%…

A: Hydrocarbons are defined as the organic chemical compounds that contain only carbon and hydrogen…

Q: A large organic molecule has a mass of 1.41 * 10-21 kg. What is the molar mass of this compound?

A: Given that, Mass of organic molecule= 1.41×10-21 kg Molar mass is given by the following formula…

Q: A chemist requires 0.471 mol Na2CO3  for a reaction. How many grams does this correspond to?

A: Number of moles of a substance can be calculated by dividing the given mass of the substance by its…

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".