Calculate the number of potassium ions in 11.6 g of potassium nitrate. Enter your answer in scientific notation. × 10 (select) potassium ions

Q: A chemist determined by measurements that 0.040 moles of sodium participated in a chemical reaction.…

A: Consider the given information is as follow: Moles of sodium participated = 0.040 mol…

Q: How much water, in mL, needs to be added to 29.7 mL of 11.2 M HNO3 to make a 6.05 M solution with…

A: Given values,  V1 = 29.7mL N1=11.2M N2=6.05M And V2=?

Q: mass

A:

Q: Calculate the number of hydrogen atoms in a 100.0 g sample of ammonia (NH,). Be sure your answer has…

A: One mole of any molecule contains approximatly 6.022 x 1023 (Avogadro's number) molecules. And the…

Q: What is the molar mass of the compound Carbon dioxide?   You are expected to know the formula for…

A:

Q: A chemist determined by measurements that 0.015 moles of gallium participated in a chemical…

A:

Q: sample of lead has a mass of 0.490. Calculate the number of moles. Your answer should be rounded to…

A: Given mass=0.49g Molar mass =207 Mole= mass/molar mass Mole=0.49/207 Mole= 0.0023

Q: How many kcal/mol are in 206.16 kJ/mol? Do not put units in your answer. Do use proper significant…

A: Kcal/mol to KJ/ mol  1kcal/mol= 4.184 kilojoules   In SI units one kilocalorie per mole is…

Q: Calculate the number of oxygen atoms in a 110.0 g sample of glucose (C,H1,0). Be sure your answer…

A:

Q: How many molecules are in one drop of water if 1.00 g of water contains 3.34 × 10 ²² molecules?…

A: 1 gm is equal to 1 mL. Given 1mL=20 drops.

Q: The molecular formula of a compound contains 2 oxygen atoms. The compound is 4.03% oxygen by mass.…

A:

Q: The chemical formula for strontium sulfide is SrS. A chemist measured the amount of strontium…

A: Mass of SrS = 6.7  g  Number of moles of SrS = ?

Q: A chemist prepares a solution of silver nitrate  AgNO3  by measuring out  0.666kg  of silver…

A: Given values - Weight of AgNO3=0.666kg 1kg = 1000gm  0.666kg = 0.666×1000gm                = 666gm…

Q: A chemist weighed out 7.64 g of tungsten. Calculate the number of moles of tungsten she weighed out.…

A:

Q: Calculate the number of hydrogen atoms in a 70.0 g sample of ammonia (NH3). Be sure your answer has…

A: Given: Mass of NH3 is 70.0 g Molar mass of NH3  is 17 g/mol Atoms in 1 mole is 6.022×1023  To find:…

Q: mass

A:

Q: QUESTION#1: TOPIC: Limiting reactants Gaseous ethane (CH3CH3) will react with gaseous oxygen (O2)…

A: Applying concept of limiting reagent.

Q: Calculate the number of moles of carbon dioxide that are present in 192.9 g of carbon dioxide. Enter…

A:

Q: Calculate the number of carbon atoms in a 80.0 g sample of glucose (C,H1,06). Be sure your answer…

A: Molecular formula =C 6H12 O6 Molar mass =6×12+12×1+16×6= 180gmol-1

Q: O CHEMICAL REACTIONS Using molarity to find solute mass and solution volume -7 Calculate the volume…

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Q: Calculate the number of iron atoms in a 150.0 g sample of iron(III) oxide (Fe₂O3). Be sure your…

A:

Q: Calculate the concentration in mol/L of the chemist's iron(II) bromide solution. Round your answer…

A: given-mass of FeBr2 = 111 gvolume of FeBr2 = 250 mLto find-concentration in mol/L

Q: A chemist measures the amount of fluorine gas produced during an experiment. She finds that 635. g…

A:

Q: What is the maximum number of pure gold that could be extracted from 95.0 g of calaverite, a gold…

A: Given: The mass of calaverite is 95.0 g The molar mass of AuTe2 (calaverite) is 452.17 g/mol The…

Q: A chemist determines by measurements that 0.035 moles of hydrogen gas participate in a chemical…

A: Given,  Moles of hydrogen gas participate = 0.035 mol.  The mass of hydrogen gas participate is:

Q: A chemist prepares a solution of calcium bromide (CaBr,) by measuring out 84.7 g of calcium bromide…

A:

Q: mol

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Q: Calculate the concentration in /molL  of the chemist's barium chloride solution. Round your answer…

A: Given  Moles of Barium chloride is 44umol Volume of solution is 150 mL We have to determine…

Q: How many.grams F in 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A: Number of moles is defined as given mass divided by molecular mass.

Q: A chemist prepares a solution of barium chloride (BaCl,) by measuring out 17.1 g of barium chloride…

A: Given that : Mass of BaCl2 = 17.1 g Molecular weight of BaCl2 = 208.23 g/mol Volume (V) = 300 mL =…

Q: What is the mass in grams of 9.35 x 1024 molecules of CO2 ? Please express in decimal form, not…

A: Given- Molecules of CO2 = 9.35 x 1024 To find - Mass of CO2 in grams

Q: B. Answer the following questions. Show calculations where applicable. Observe the use of…

A: Recall the following expression of Molarity       Molarity=wM×VHere, mass of solute(w) is expressed…

Q: A chemist weighed out 73.5 g of barium. Calculate the number of moles of barium she weighed out.…

A:

Q: Calculate the number of carbon atoms in a 50.0 g sample of camphor (C10H160). Be sure your answer…

A: Mass of 1 mole = Molar mass  1 mole = 6.022 x 1023 particles/atoms/molecules

Q: A sample of vinegar (20.0000 g) contains 1.0763 g of acetic acid. What it the mass% of acetic acid…

A: There are several terms to express the concentration of the solution. Mass percentage is one of the…

Q: A chemist measures the amount of nitrogen gas produced during an experiment. She finds that 51.1 g…

A: Given, mass of Nitrogen (N2) gas produced = 51.1 g moles of Nitrogen (N2) gas produced = ? Note:…

Q: During the experiment, the mass of original sample was 2.226 g, and the mass of copper obtained was…

A: In the question, only two elements Copper (Cu) and Chlorine(Cl) are mentioned.So, we can conclude…

Q: You have been asked to compound 8 capsules of lithium sulfate, containing 6 mEq Li* per capsule. The…

A: Given,  1 capsule contains = 6 mEq of Li+  Molar mass of Li2SO4 = 109.9 g/mole Weight of 8 capsules…

Q: How many grams of calcium nitrate contain 4.50 g of oxygen? Write your answer on the blank with the…

A: Using molar mass of calcium nitrate and oxygen in calcium nitrate we can solve this problem.

Q: A chemist prepares a solution of iron(III) bromide (FcBr,) by measuring out 483, umol of iron(III)…

A: From given dataNumber of moles, n = 483mol × = 0.483 mmolVolume of solution, V = 400 mL = 0.400 LAs,…

Q: During the experiment, a student calculated the mass of chlorine in the compound to be 1.153 g. How…

A:

Q: A chemist measures the amount of nitrogen gas produced during an experiment. He finds that 5.72 g of…

A:

Q: How many grams F in 511.9 g Br2F6?    Put the answer in the box in regular (non-scientific)…

A: Given: Mass of Br2F6 is 511.9 g and we know that the molar mass of Br2F6 is 273.7984 g/mol

Q: A chemist measures the amount of nitrogen gas produced during an experiment. She finds that 34.5 g…

A:

Q: Consider a sample containing 8.398x10-18 grams of Fe3O4. How many oxygen atoms are in the sample?…

A: Thank you.

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.