What is the mass of phosphorus in a 45 kg person? .017 mass of P Incorrect

Q: A chemist measures the amount of oxygen gas produced during an experiment. He finds that 6.63 g of…

A:

Q: if a 5.00 g ring of 14k gold has a 2.92 g of gold and the rest is copper, what is the percentage of…

A: Given that a 5.00 g of a 14k gold has a 2.92 g of gold and rest is copper. We have to find the…

Q: The mass of an average blueberry is 0.75 gg and the mass of an automobile is 2200 kgkg . Find the…

A: Given : mass of 1 blueberry = 0.75 g And mass of 1 automobile = 2200 Kg = 2.2 X 106 g…

Q: How many significant figures are in each number?

A: Given :- A)  0.1 s B)  108,700 km  To calculate :-  Number of significant figures in each number

Q: How many atoms are contained in 18.50 mL of water (d = 0.997 g/mL)?

A:

Q: 2. Discussion Questions: a. How would you measure the mass of a solid if it existed as a powder or…

A: In the realm of accurate measurements, the use of weighing boats and precise balances stands as a…

Q: complete the percent by mass of each element in the compound to one decimal.  a. C12H22O11 b. K2CrO4…

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Q: Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her…

A: Molar mass of H2O is 18.02 g/mol. Molar mass of CoCl2 is 129.84 g/mol. Mass of water removed can be…

Q: A person could count gold atoms as converting lead to gold. They counted very fast and counted 1000…

A: According to the question , number of gold atoms counted in 1 sec = 1000 gold atoms…

Q: Part A How many significant figures are in each number? 0.1 s O 4 2 3 6 7 The number of significant…

A: Rules for identifying significant figures:  1. The digits except zero are always significant 2. The…

Q: a) How many grams of Ca, how many of C and how many of O are contained in 20g of calcium carbonate?…

A: The form of ratios that are used to calculate the quantities of reactants or products in a chemical…

Q: 1-mass of crucible and lid containing magnesium oxide 2- mass of empty crucible and lid from this…

A: To determine the mass of crucible + Lid + Magnesium oxide therefore from the given data table the…

Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Significant number: The non-zero digits are all significant. Among non-zero digits, there are large…

Q: Calculate the mass percent composition of each of the following Part A. 6.00 g of Si and 5.55 g of O…

A: Mass percentage can be calculated using the following formula: mass percent=masstotal mass×100

Q: How many atoms are contained in 4.1 g of carbon? How can you round this answer to 2 significant…

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of carbon atoms weigh 12 g.

Q: How many grams of gold (Au)are there in 88.93 moles of Au? Be sure your answer has the correct…

A: When the moles of the substance are given, it has to be calculated by knowing the molar mass of that…

Q: Copper has two naturally occurring isotopes, Cu (isotopic mass 62.9296 amu) and 5 Cu (isotopic mass…

A:

Q: If you have 52% silicon dioxide in a 12.09 g sample, what mass of silicon dioxide do you have?   Am…

A: Given, Mass % = 52%  Mass of sample = 12.09 g  Mass of SiO2 = ?

Q: A  penny  weighs  2.507g  and  is  made  of  an alloy which  is  97.6%  zinc  and  2.4%  copper.…

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Q: In the number 723.4, which digit is estimated? 02 0 3 01 4

A: The given number is = 723.4This number contains a decimal place.

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: A chemist measures the amount of bromine liquid produced during an experiment. She finds that 2.3 g…

A: Given :- mass of bromine liquid produced = 2.3 g  To calculate :-  Number of moles of bromine liquid…

Q: What is the mass percent of phosphorus in P5O2?

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Q: The following prompt will be used to answer the first six questions. An experiment was performed to…

A: Given :

Q: b. U.00004042 fng 4.042 x 10-5 mg Which sample of element is heavier? Show appropriate calculations…

A: Given: The moles of N2 = 2 moles. The moles of Fe = 1 mol. The moles of F2  = 1.5 moles.

Q: The mole is a unit for counting. O False O True

A: One mole of a substance is equal to 6.022×10^23 of that substance present in  ( atoms, molecules, or…

Q: How many atoms are there in each of the following substances? 1.88 g Bi Express your answer using…

A: Calculate number of atoms in each element given--

Q: Part D 1.5630 x 1011 n m O 1 2 O 3 O 4 O 7 O 5 O 6 Tho numho of significant fig

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Q: Calculate the mass in grams of each sample 4.8×1025 O3 molecules to g Express your answer using two…

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Q: O final the average must and the standard deviation of the empty vial Lilleanse, find the average…

A: Since you have asked multiple questions, we will solve first one for you. For remaining questions,…

Q: Please answer question number 2  correctly with the correct answer. there is a picture of an example…

A: 32.0 g/mol approx. is the molar mass of dioxygen (O2) gas and there are 6.022x1023 of molecules of…

Q: What is the mass, in grams, of each of the following? I.) 2.1×10−3 mol Sb Express your answer…

A:

Q: INTERACTIVE EXAMPLE The Average Mass of an Element = When a sample of natural silver is vaporized…

A: Step 1: Step 2: Step 3: Step 4:

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".