A loss of 0.4 mg of Zn occurs during an analysis of that element. Calculate the percent error (% E) due to this loss if the mass of Zn in the sample is 150.0 mg.

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

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Q: The mass of an organic compound was found to be 58.053 86 by mass spectrometry. Is the sample C₂HN₂,…

A: The solution is given below -

Q: A particular brand of beef jerky contains 0.0552% sodium nitrite by mass and is sold in an 8.00-oz…

A: The concentration of any solution can be shown by either expressing its molarity, molality,…

Q: The balanced chemical equation for the reaction between iron(III) oxide and aluminum is: Fe203 (s) +…

A: 2 moles of aluminum and 1 mole of iron(III) oxide react to produce 1 mole of aluminum oxide and  2…

Q: 7. Elemental phosphorus is produced by the reaction, 2 Ca3(PO4)2 + 6 SiO₂ + 10 C →6 CaSiO3 + 10 CO +…

A: The moles of Ca3(PO4)2 is 6.00 mol.The moles of SiO2 are 20.0 mol.The moles of C is 24.0 mol.To…

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Number of iron atom = 1 Mass percent of  Fe in the compound = 0.330 %

Q: 5. A 2.000 g sample of CoCl2·xH2O is dried in an oven. When the anhydrous salt is removed from the…

A: By calculating moles of CoCl2 and H2O we can find value of x.

Q: we heat the sample FeCl3 6H2O and the following reaction takes place, FeCl 6H2O FeCl3 + 6H2O based…

A: Given, FeCl3.6H2O Heat ➝ FeCl3 + 6H2O Before heating mass of FeCl3.6H2O hydrate compound = 3.50 g…

Q: A 4.77 g quantity of solid rubidium metal is combined with 3.44 g of magnesium chloride crystals…

A: The given reaction is as follows: 2Rb(s) +1MgCl2(s) → 1Mg(s) + 2RbCl(s) The given mass of rubidium…

Q: Fe,03 + HCI → FeCl, + H2O 5 g 5 g ?g 5. How many grams of the product is produced?

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Q: 5.000 gram sample of hydrated beryllium carbonate, BeCO3·xH2O is heated according to the procedure…

A: To calculate the number of moles of H2O and BeCO3.

Q: An organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a 150. mg…

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Q: sample containing 58.51g manganese (Mn

A: We have to calculate the actual yield

Q: When a sample of solid potassium chlorate is heated strongly, a decomposition reaction occurs. Solid…

A: Mole is calculated by dividing the given mass with molecular mass. When a sample of solid potassium…

Q: d If nickel(II) formate is heated to 300 °C in the absence of air for 30 minutes, the salt…

A: Nickel formate decomposed to form nickel powder. Each mole nickel formate produces 1 mol of nickel.…

Q: Balance the following equation by filling the gaps with appropriate numbers. K + KNO3 K20 N2 +

A: The reaction of potassium and potassium nitrate forms potassium oxide and nitrogen.

Q: If there were 4.00 x 10^23 sodium ions available, (and more than enough carbonate ions), how many…

A:

Q: An empirical formula will not provide the following information 1. lowest whole-number ratio of…

A: Empirical formula : Empirical formula is the lowest or simplest  ratio of the atoms present in the…

Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: An organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a 150. mg…

A:

Q: 1. As of today Silver is trading at $27.10 per ounce. Recall that 1 ounce = 28g. If we mine 2.5x106…

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Q: 6. A student reported the following percentages for his unknown mixture: 25% NH4CI, 30% NaCI, and…

A:

Q: Oxygen makes up 46.7% by mass of the earth's crust. How many grams of oxygen are present if a sample…

A: Given that, 46.7% by mass of the crust of earth is made up of Oxygen. It implies that every 100 g of…

Q: Find the percent, by weight, of each component.

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Q: 21. In the Haber-Bosch process, hydrogen gas reacts with nitrogen gas to produce ammonia according…

A: We have to calculate the theoretical yield of product.

Q: Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects.…

A: Given molar mass of caffeine = 194.2 g/mol percentages C = 49.5℅ N = 28.9℅ H = 5.19℅ O = 16.5 ℅

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: B. TRUE OR FALSE: Read each statement carefully. Write TRUE if the statement is correct and FALSE if…

A: Percentage composition gives a brief ideas about each elemental composition as follows.

Q: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

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Q: Mass NaHCO36.9341 5. Calculate the moles of NaHCO3 in the sample and record the data below. 0.0825…

A: Mass of sodium bicarbonate dissolved= 6.9341 g  Volume of the solution= 0.05 L  Density of the…

Q: 4) Zinc oxide can be produced by the following reaction: 2 Zn (s) + O2 (g) 2 ZnO (s) - There are…

A: Given-> Surface area = 5500 cm2 For 1 cm2 surface required atom of Zn = 1.9 × 1020

Q: OAn organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a…

A:

Q: 4A. How many grams of potassium chloride are produced from... ...2.50 g of potassium and excess…

A:

Q: Cobalt(II) chloride forms several hydrates with the general formula CoCl2 ·x H2O , where  x  is an…

A: Here we are required to number of hyrate attached to the salt.

Q: A particular carborane has the following mass percentages: 21.30%C and 67.09%B. What is the…

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Q: 11. The compound As214 is synthesized by reaction of arsenic metal with arsenic triiodide. If a…

A: The reaction between As metal and AsI3 can be shown as: As+AsI3→As2I4 This is an imbalance chemical…

Q: 4 g of Y reacts completely with oxygen. The following equation (ii) represents the reaction. 4 g Y…

A: From now onwards, please, post the question in English only. We have to predict the mass of product…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.