If a fertilizer bag indicated that it contained 35 percent K2O, a. What does the analysis look like in percent K? b. Calculate the percentage P2O5 in the bag assuming the bag is labeled as 150 percent P.

Q: 4. Calculate the mass of oxygen produced from the decomposition of 75.0 g of potassium chlorate.…

A: Applying concept of limiting reagent and mole concept.

Q: Suppose a student starts with 2.4094 g of a sand mixture and separates the components into 1.3012 g…

A:

Q: In the room, the police also found a suspicious amount of CO2 in the air, which is produced when…

A: Combustion reactions of methanol is 2CH4O+3H2O→2CO2+4H2O 2 mole of methanol is producing 2 moles of…

Q: 50 mL of a 0.9 Ca3(PO4)2 solution is added to a beaker.  How many moles of Ca3(PO4)2 were added?…

A: Molarity = Number of moles /volume of solution in Litre  Number of moles = weight in grams/ Molar…

Q: You carry out the reaction represented by the following balanced equation: N2(g) + 3H2(g)

A: Given incomplete reaction N2(g) + 3H2(g) ----> We need to write the complete and balanced…

Q: Nicotinamide is an important vitamin for metabolism and is soluble in water. A deficiency of this…

A: Given data Composition of elements in Nicotinamide Elements % composition C 59 N 22.9 H 5…

Q: 1. A solution was prepared by dissolving 1210 mg of K3Fe(CN)6 (MM=329.2 g/mol) in sufficient water…

A:

Q: 2) If cobalt(II) sulfate is heated too strongly, the following reaction will occur COSO4(s) → CoO(s)…

A: The dehydration reaction can be defined as the conversion reaction which involves the loss of water…

Q: Copper metal can be prepared by roasting copper ore, which can contain cuprite (Cu₂S) and copper(II)…

A: Given: The impurity % is 10.0%. Weight of a mixture is 100.0 g Weight of Cu metal with 91.1%…

Q: Nitrogen trifluoride, NF3, is used in the production of flat panel displays. It is also a potent…

A: Here we have to convert  0.454 ppt of NF3  in 2008 to mg per kg of air.

Q: Write the balanced chemical equation for the reaction of aqueous lead (11) nitrate and potassium…

A: When Lead(II)nitrate reacts with potassium chromate yellow colored lead(II) chromate and potassium…

Q: The brewing industry uses yeast to convert glucose to ethanol. The baking industry uses the carbon…

A: Balanced  reaction  C6H12O6(s)   →yeast     2C2H5OH(l) + 2CO2(g) mass of C6H12O6 = 100.0 gm moles of…

Q: How many grams are needed to prepare 250.0 mL of 1.0000 M of Potasium Hydrogen phthalate KHP…

A:

Q: 1. KO2 -readily reacts with moisture to produce oxygen gas, potassium hydroxide, and hydrogen…

A:

Q: What type of reaction would you classify the following reaction as? 2 H2 (g) + O2 (g) ⟶⟶ 2…

A: There are five different types of chemical reaction, four of which are given in the choices above.…

Q: Suppose a student starts with 2.3865 g of a sand mixture and separates the components into 1.3012 g…

A: The objective of this question is to calculate the percentage of SiO2 in the starting mixture of…

Q: 53. Lead(II) oxide from an ore can be reduced to elemental lead by heating in a furnace with carbon.…

A:

Q: Calculate the concentration of sodium hypochlorite in mol.g-1, in a sample of bleach containing 6%…

A: Given that, in a sample of bleach containing 6% sodium hypochlorite in a 250g packet. So mass of…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: The unbalanced chemical reaction is: Si4H10l+O2g→SiO2s+H2O(l)

Q: How many grams of ASA, C9H8O4, are present in 250.0 mL of 3.0 x 10-3 M C9H8O4? The molar mass of…

A:

Q: The air exhaled from the lungs of a smoker has a concentration of 20-50 ppm CO. In contrast, air…

A: The concentration of CO in exhaled air has been provided in the units of ppm (parts per million).

Q: Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Please show the steps involved.

A: Number of moles of CaCl2.9H2O can be calculated from the given mass and molar mass:

Q: 2 N₂O5(g) --> 4 NO₂(g) + O₂(g) True/False: The equation is already balanced as it is written.

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus,

Q: Tristearin (C57 110° H obtained from animal fats, was historically used as a household fuel source.…

A: Given the mass of tristearin(C57H110O6) taken for combustion = 5.79 Kg  Since oxygen(O2) is taken in…

Q: type

A:

Q: Solid iron (Fe) and aqueous magnesium chloride (MgCl) are formed by the reaction of solid magnesium…

A: Answer:- This question is answered by using the simple concept of writing the chemical equation…

Q: 5. What volume of beer that is 6.0 % by volume alcohol contains 200. ml CH3CH,OH (ethyl alcohol)?

A: Given:Volume/Volume % = 6.0 %Volume of ethyl alcohol = 200.0 mL

Q: 9. A mixture of 50 g H₂0 and 30 g of CeHsOH separates into two layers at 62°C. One layer, X₁,…

A:

Q: Sulfur trioxide dissolves in water to make sulfuric acid, H2O4. Write a balanced chemical equation…

A: Balanced chemical equation of water with SO3

Q: In a pure sample of blue vitriol the Copper content is 25.45%. Calculate the new percentage of…

A: The number of moles of a substance is given by the mass of the substance upon its molar mass. The…

Q: If a bag of fertilizer were labeled as containing 35% K2O,      b. Assume the bag is labeled as…

A: a) Simply divide the K2O  % by 1.21 to get the percentage of K. Multiply by 1.21 to convert K to…

Q: Limestone is typically 50.0% (w/w) CaCO3. How many grams of CaCO3 are present in a limestone sample…

A: Here we are required to find the mass of calcium carbonate present in 1.2 kg

Q: 1. What volume of 65% nitric acid with a density of 1391 kg / m ^3 can be produced from 1.5 tons of…

A:

Q: A fertilizer advertised as 8-8-8 generally means that it contains 8% total nitrogen, 8% P2O5, and 8%…

A: Given: The fertilizer contains 8% of P2O5 and 8 % of K2O. Assuming 100 g of the fertilizer. Hence…

Q: Consider the following balanced reaction. What mass (in g) of CO2 can be formed from 288 mg of O2?…

A: Given :-  C3H7SH(l) + 6O2(g) → 3CO2(g) + SO2(g) + 4H2O(g)  mass of O2 = 288 mg or 288 × 10-3 g  To…

Q: . Gypsum has the formula CaSO4?2H2O. Plaster of Paris has the chemical formula CaSO4?12 H2O. In…

A: For determining the amount of product, the mole ratio of reactants in a balanced reaction must be…

Q: At 20°C, acetaminophen has a solubility of about 1.5 g/100 mL in water. If you recrystallize 5.00g…

A: Given: Solubility of acetaminophen in water = 1.5 g/100 mL of water = 0.015 g/mL of water. Mass of…

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".