A 5.000 g sample that contained NaCl and BaCl2*2H2O was heated. After heating, the sample had a weight of 4.688 g. What is the percent NaCl in the sample?

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

A:

Q: . How many oxygen atoms are in 76.3 g N2O4? Conversion must be set-up in one step using dimensional…

A:

Q: 2C2H6 + 7O2 = 4CO2 + 6H2O If we instead had the combustion of propane, C3H8, how many grams of water…

A: Combustion means burning of the substance in presence of air to produce water and carbon dioxide.…

Q: Iron forms a compound with carbon monoxide, Fex (CO)y. To determine its formula, you carefully heat…

A: Please see explanation.

Q: How many grams of carbon tetrabromide contain 2.48 grams of Br ?

A: grams of carbon tetrabromide contain 2.48 grams of Br  will be found like this:

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

A: Given, Mass of sample = 5.000g. Final weight of sample after heating = 2.651g. The mass of water in…

Q: 3.110 The aluminum sulfate hydrate [Al2(SO4)3 ⋅ xH2O] contains8.10 percent Al by mass. Calculate x,…

A: Given: Al2(SO4)3.xH2O (100 g) contains Al by mass = 8.10 g Also, Moles of Al in Al2(SO4)3.xH2O = 2…

Q: How many grams of Pb2+ are presented in 2.65 grams of lead (II) nitrate?  How many grams of lead…

A: a) Pb2+ are presented in 2.65 grams of lead (II) nitrate = 1.66 gram b) grams of lead (II) nitrate…

Q: A tube of toothpaste contains 0.76 g of sodium monofluorophosphate (Na2PO3F) in 100 mL.  What is the…

A: Given : Mass of sodium monofluorophosphate i.e Na2PO3F = 0.76 g

Q: 1. 84 g of CsH&O6 contains 6.02 x 1023 molecules.

A: Molar mass of C5H8O6 = 5×12 + 8×1+ 6 × 16 = 164 g 1 mol of any substance contains= 6.022×1023…

Q: the compound cisplatin Pt(NH3) 2Cl2 has been studied as an an antitumor agent. Cisplatain is…

A:

Q: How many grams of nitrogen are in a .10g sample C8H10N4O2?

A: Step : 1            The mass of caffeine ( C8H10N4O2 ) is not clear, so we consider as two cases  :…

Q: How many moles of tetracycline (C₂₂H₂₄N₂O₈) are in 92.1 grams?

A: Before going to find out moles of tetracycline, We first find out molecular weight of C22H24N2O8 ,…

Q: For each of the following samples of ionic substances, calculate the number of moles and mass of the…

A: 4.25 g of ammonium iodide 6.31 moles of ammonium sulfide. 9.71 g of barium phosphide 7.63 moles of…

Q: How many moles of C4H10 contains 9.25 x 10^24 molecules of C4H10?

A: Conversion of units:-             This can be done by a methond called unit factor method orcalled…

Q: Caffeine has the formula C8H10N4O2 . If an average cup of coffee contains approximately 125 mg of…

A: In the international system of units the mole (symbol: mol) is the quantity unit for measurement…

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: 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: Convert 98.09 grams of X5Z4 into moles of the same compound. (Assume that the molar mass of X is…

A: Mole in terms mass:  1 mole = molecular mass of the compound  X5Z4 molar mass = 5 x 46.14 g/mol + 4…

Q: In the compound (NH4)S2, what is the percent composition of hydrogen

A:

Q: what’s the molecular formula?

A:

Q: How many grams of water could be made from 5.19 mol H2 and 3.86 mol O2?

A: Since you have posted more than one question,we can solve only first question for you. If you want…

Q: 2. Calculate the mass of hydrogen formed when 25 grams of aluminum reacts with excess hydrochloric…

A: The number of moles is determined by taking the ratio of mass to the molar mass of the substance and…

Q: Suppose a student starts with 2.4319 g of a sand mixture and separates the components into 1.3012 g…

A: percent of SiO2 in the starting mixture =    =Mass of SiO2 × 100/ Total Mass of the mixture =…

Q: What percentage of NH4NO3 is nitrogen?

A: Mass percent of element  is the mass of element present in 100g of the compound. Mass percent of…

Q: This is CCl4 with a molecular weight of 119. On a mass basis what percent of the material is…

A: The molecular weight of CHCl3 is 119.38 gmol-1 and that of CCl4 is 153.82 gmol-1 .

Q: Chemistry a student was given a sample of CaCO3 * XH2O to find the empirical formula. she measured…

A: CaCO3 .xH2O  upon heating  will lose its water and this a given sample will lose some of its mass…

Q: A lawn fertilizer is rated as 7.55% nitrogen, meaning 7.55 g of N in 100 g of fertilizer. The…

A: Given, A lawn fertilizer is rated as 7.55% nitrogen, meaning 7.55 g of N in 100 g of fertilizer. The…

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

A:

Q: 1 CH; H CH3 Molecular formula: H,C-C-C-Ċ-CH, Empirical Formula:

A:

Q: What is the percent NaCl in the sample?

A:

Q: The formula of glucose is C6 H12 O6. a. The number of molecules in 166 grams of glucose would be…

A:

Q: How many molecules are in 3.1 x 10-3 g of C9H8O4  ?

A: Given that,  Weight of C9H8O4 = 3.1 x 10-3 g Molar mass of C9H8O4 = 180.16 g/mol Moles of C9H8O4 in…

Q: A 5.000 g sample that contained NaCl and BaCl2 2H2O was heated. After heating the sample had a…

A: We have to calculate the % NaCl in the sample.

Q: CrO3 OH d. H,SO4, H2O е. [1] Mg HO, [2] CO2 [3] H30* f. E Ag20, NH4OH OH

A: We have to identify the starting material for the following given reaction as follows in step 2:

Q: If you have 534 grams of AlC13 and an infinite amount of NAOH, how many grams of Nacl would be…

A: Given data: Grams of AlCl3=534 g. Chemical reaction: AlCl3 + 3 NaOH → Al(OH)3 + 3 NaCl. To…

Q: 4. What is the mass percent composition? Why is it useful?

A: Mass percent of each type of element in a compound is called the mass percent composition of the…

Q: How many molecules are in 16.1 g of C8H10?

A: Mass of C8H10 = 16.1 g

Q: . Suppose a sample is 32 mL of water, how many grams of oxygen is present in the sample? 2. How…

A:

Q: Upon heating, a 2.500 g sample of hydrated magnesium chlorate, Mg(ClO3)2 loses 0.903 g of water.…

A: A numerical problem based on determination of number of hydration, which is to be accomplished.

Q: One of the hydrates of CoSO4 is cobalt(II) sulfate hexahydrate . A 71.1 gram sample of CoSO4 6 H2O…

A: Answer

Q: Suppose a student starts with 2.4464 g of a sand mixture and separates the components into 1.3012 g…

A: According to the question, we had a sand mixture consisting of NaClNaCl, CaCO3CaCOX3, and SiO2SiOX2.…

Q: what is the percent of SiO2 in the starting mixture?

A: Percent by mass = (mass of a component in mixture /total mass of mixture) × 100%  Given :- mass of…

Q: How many molecules of water, H2O, are present in 75.0 g of H2O?

A: • 1 mole = 6.023 x 1023 molecules.   1 mole = molar mass.   1 mole of H2O Contain = 6.023 x 1023…

Q: Which substance contains more carbon by mass, 6.01 g of glucose, C6H12O6 or 5.85 g of ethanol,…

A:

Q: ● Which of the following 100.0-g samples contains the highest percent oxygen by mass? H2O N20 C3H6O2…

A:

Q: 1)_CsHs +, _02 > _CO2 +_H20 6.003g of oxygen, makes how many moles of water?

A:

Q: A lawn fertilizer is rated as 5.90% nitrogen, meaning 5.90 g of N in 100 g of fertilizer. The…

A: The answer is as follows.

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: The formula of ytterbium(III) oxide is Yb₂O₃. What is the percent by mass of oxygen in…

A: Mass percent represents the composition of an element in the given compound, which is calculated…

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".