Calculate the number of O atoms in 0.0985 g of  CaSO4 · 2H2O Help i have no idea how to solve this. It also asks for the answer to be in scientific notation

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A: A chemical equation is said to be balanced, if the number of atoms of each element or compound is…

Q: Be sure to answer all parts. How many H atoms are in 31.3 g of isopropanol (rubbing alcohol), C3H3O?…

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Q: 77. A binary compound of boron and hydrogen has the following percentage composition: 78.14% boron,…

A: Determination of empirical formula The percentage composition of elements present in given compound…

Q: Part B Calculate the number of CO2 molecules in 1.19x102 mole of CO2. Express your answer using…

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Q: How many moles of cobalt (Co) atoms are there in 6.00 × 10° (6.00 billion) Co atoms? x 10 mol Enter…

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Q: How many molecules of C7H12 would you have if you have 3.31 mol? Report your answer with 3…

A: A mole is defined as the quantity containing avogadro number of particles (6.02 x 1023 particles).…

Q: Chemistry (1= T15HW Question 5 Homework Unanswered O Determine the percent by mass of both magnesium…

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Q: How many molecules of C6H12C6H12 would you have if you have 3.31 mol? Report your answer with 3…

A: Given, Number of moles of C6H12C6H12 = 3.31 moles Number of molecules of C6H12C6H12 = ?

Q: How many moles are in 2.45 x 10^23 molecules of Na2S? Answer the equation in the format in the…

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Q: Use the molar mass of Ca3(PO3)2 to calculate the moles of oxygen in 6.66 x 106 g of CP.  Give your…

A: given mass of  Ca3(PO3)2 = 6.66 x 106 g    Molar mass of Ca = 40.078 g/mol Molar mass of P = 30.974…

Q: What is the molar mass of acetic acid, in g/mol? Use two decimal places in atomic masses. Only give…

A: Given , molecule : acetic acid

Q: How many molecules of C8 H18 would you have if you have 2.51 mol? Report your answer with 3…

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Q: The chemical formula of trinitrotoluene (TNT) is C7H5N3O6. What is the molecular mass of TNT?…

A: We have to find the molecular mass of trinitrotoluene (TNT) is C7H5N3O6. Atomic mass of Carbon =…

Q: How many molecules are present in one mole of water, H2O? Express your answer in scientific…

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: Calculate the mass percent composition of nitrogen in CO(NH2)2. Express your answer using four…

A: The percent composition of a component present in the mixture is calculated by dividing the mass of…

Q: Convert 6.92 x 1024 molecules of CO2 to grams CO2.

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: chemist determines by measurements that 0.0600 moles of oxygen gas participate in a chemical…

A: Number of moles of oxygen gas = 0.0600 moles

Q: What is the mass (in grams) of 9.43 x 1023 molecules of sucrose (C12H22O11)? First determine the…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 0.18 g of FeBr, into a…

A: Molarity of a solution is expressed by moles of solute present per litre of solution. Recall the…

Q: How many grams of Al2(CrO4)3 (HINT: F.M. = 401.96) would be required to obtain 12.00 g of…

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Q: When xenon tetrafluoride reacts with water it produces xenon element, xenon trioxide, hydrogen…

A: Given, xenon tetrafluoride reacts with water and produces xenon elementxenon trioxide, hydrogen…

Q: How many moles of H3PO4 can be made from 1.39 X 1027 molecules of P4O10? 12 HCIO4 + P4010 4 H3 PO4 +…

A: When two reactive compounds are mixed, then they react according to the stoichiometry of the…

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Given: Compound: CH3COOH Moles of Oxygen are 1.88 moles. To find: Moles of H in the sample

Q: Calculate the mass in grams of 3.96 x 1024 molecules of dichlorine hexaoxide. Enter your answer in…

A: The compound given is dichlorine hexaoxide. From the name we can see that the compound will have 2…

Q: How many moles are in 87 g of Na2O? All answers have units of moles of Na2O O 1.4 6.0 x 1023 O 5.2 x…

A: Answer

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

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

Q: Maggie filtered out a sample of copper (II) chloride, CuCl2 from a local pond, and found its mass to…

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Q: How many moles are in 9.26 x 1023 molecules of NH3 ? Do not put units in your answer. Do use proper…

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Q: 2 NH3 + 3 CuO --> 3 Cu + N₂ + 3H₂O In the above equation how many moles of N₂ can be made when 190.1…

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Q: This Is the chemical formula for talc (the main Ingredient In talcum powder): Mg,(Si,0,),(OH), An…

A: Using the number of moles of oxygen, we will calculate the moles of hydrogen in the talc from its…

Q: How many moles are in 1.06 x1020 atoms of iron?

A: Given :- number of atoms of iron = 1.06 x1020 atoms  To calculate :- number of moles of iron

Q: When the equation _NH, +_0, →_HNO, +_ H,0 is completely balanced using smallest whole numbers, the…

A: Find the solution below

Q: Calculating and using the molar mass of diatomic elements A chemist determines by measurements that…

A: Explanation given as follows

Q: Use the molar mass of Ca3(PO3)2 to calculate the number of formula units in 10.0 g of CP.  Give your…

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Q: How many molecules are there in 47.5 g of PF3? You will need to divide your answer by 1.0x10^23.

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass.…

Q: A student places 5.00 g of an unknown metal(X) ribbon in a crucible. The crucible is heated until…

A: The molar mass of any substance is the mass of one mole of substance, which is expressed as g/mol.…

Q: The chemical formula for potassium bromide is KBr. A chemist measured the amount of potassium…

A: Chemical formula of potassium bromide = KBr  Given mass of KBr = 58.1 gram

Q: What is the mass in grams of 250 liters of oxygen gas, O2? Answer the equation in the format in the…

A: One mole of any gas contains 22.4 literof volume.

Q: Potassium is the second most abundant metal in the human body. Calculate the following: (a) The…

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Q: A student weighed out 1.106 g of KHP How many moles was that?

A: A student weighed out 1.106 g of KHP. The moles of KHP in 1.106 g are to be calculated.

Q: How many moles of Al2(CO3)3 are there in 127 g of Al2(CO3)3 ? Round your answe to 2 decimals. Your…

A: The formula mass of a substance is the sum of the average atomic masses of each atom represented in…

Q: 2 NH3 + 3 CuO → 3 Cu + N₂ + 3 H₂O In the above equation, how many grams of N₂ can be made when 18.4…

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Q: mass

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Q: What is the mass in grams of 0.402 mol of magnesium fluoride? Round your answer to the correct…

A: Given: Number of moles of magnesium fluoride (MgF­2) = 0.402 mol Molar mass of MgF­2 = 62.3018 g/mol

Q: How many carbon atoms are present in a mole of 12C? Express your answer using four significant…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many molecules are present in 3.46  10–4 g hydrogen gas? The answer is 1.03 x 10^20 H2 . How to…

A: Given :  Mass of hydrogen (H2) gas = 3.46 x 10-4 g  Also,  Molar mass of H2 gas = 2 g/mol

Q: 2. If 0.0276 g of magnesium metal reacts with excess hydrochloric acid according to the equation…

A: Given, number of moles of magnesium metal for reaction =0.0276 moleswe are asked to calculate the…

Q: A philosophy student was counting grains of sand and found they had 3.7 x 10^24 molecules of…

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Q: How many molecules are present in 45g of fluorine gas, F₂? 2.71 x 1025 1.03 x 1027 7.13 x 1023 1.97…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.