An atom of a particular element has a volume of 7.8 x 10¯31 m3 What is this volume in cubic nanometers ?

Q: There are many minerals which contain silver. A 2.22 g sample of one of these, matildite, is placed…

A: The reaction between silve and magnesium chloride for analysis of Ag in matildite . 2 Ag + MgCl2 → 2…

Q: A chemist prepares a solution of aluminum sulfite (Al, (SO,)) by measuring out 57.0 umol of aluminum…

A:

Q: A scientist removed a sample of 37.8 grams of a chemical from a container. The sample was 4 1/4 less…

A: Given the mass of the sample removed out of the total mass = 37.8 g  Suppose the total mass of the…

Q: The concentration of mercury in a polluted lake is 0.33 micrograms per liter of water. What is the…

A: Given,Volume of the lake = 1.5 x 1012cm30.33 micrograms per liter of water

Q: You add 8.34 grams of sodium bicarbonate in a test tube weighing 31.43 grams. After heating with a…

A:

Q: A chemist must prepare 475. mL of 1.00 M aqueous sodium nitrate (NaNO3) working solution. He'll do…

A: Volume of sodium nitrate =475 mL = V2 Concentration of sodium nitrate =1.00 M =M2 Molarity=5.64mol/L…

Q: Calculate the mass of NH3 (in grams) in 5.6x10^24 hydrogen atoms. Give your answer in decimal places…

A:

Q: The composition of a mixture of potassium chlorate and potassium chloride is to be determined. A…

A: The objective of this question is to determine the percent by mass of potassium chlorate in a…

Q: ne chemical reaction. bund your answer to 3 significant digits.

A: Mass = mole × molar mass

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: You add 297 grams of NaCl to a container and then you add 898 grams of water to that same container.…

A:

Q: A chemist adds 0.45 L of a 2.9 × 10 M copper(II) fluoride (CuF,) solution to a reaction flask.…

A:

Q: A protein is 600 micromole per liter. The molecular mass is 68,500 g/mol. What is the…

A:

Q: Calculate the mass of camphor C10H16O  that contains a trillion  ×1.01012  carbon atoms.

A: Number of carbon atoms = 1.0 x 10 12 atoms

Q: Which numerical process will determine a mass (in g) carbon and 1.312 mol of acetaminophen…

A: Mass of C (in g)  = n × m × MMC Where, n = number of mole of compound              m = number of mol…

Q: A certain compound has a molar mass of 323.4 g/mole  .  Determine the number of grams in 2.73 x 10-2…

A:

Q: The source of bitterness in dark chocolate is the compound theobromine, an alkaloid present in cocoa…

A: Number of moles is defined as the ratio of given mass by the molar mass. moles =massmolar mass

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

A:

Q: laboratory procedure calls for making 510.0 mL of a 1.3 MKNO3 solution. How much KNO3 in grams is…

A:

Q: The nickel is comprised of two metals, nickel and copper. Surprisingly, the coin is only 25% nickel.…

A: The coin is comprised of nickel and copper. The mass percentage of nickel in the coin is = 25% The…

Q: A chemist adds 215.0 mL of a 0.047 mmol/L sodium thiosulfate (Na₂S203) solution to a reaction flask.…

A: Volume = 215.0 mLMolarity of sodium thiosulfate(Na2S2O3) = 0.047 mmol/Lmolar mass of sodium…

Q: The average dollar bill is 1.8x107 nm long and weighs 0.987 g.  The distance to the sun is 1.5x108…

A: Mole : Mole is the unit by which we measure the amount of substance. One mole is equal to the number…

Q: Suppose 1.39g  of potassium nitrate is dissolved in  350.mL  of a  75.0mM  aqueous solution of…

A: Molarity is defined as number of mole present in 1L solution. Here, 39.285 mmol KNO3 contains in 1L…

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 nanomoles is a 83.9 pg sample of platinum?

A: Given :- mass of Pt = 83.9 pg  To calculate :- number of nanomoles of Pt  Number of moles =…

Q: Gaseous butane (CH3(CH2)2CH3) will react with gaseous oxygen O2 to produce gaseous carbon dioxide…

A: As given in the question that butane reacts with gaseous oxygen to produced carbon dioxide and…

Q: Atoms are the smallest spherical particles that make up any matter. If 6.0x10^23 atoms of aluminum…

A: Avogadro’s number is used to determine the number of atoms present in 1 mol of an element.…

Q: The volume of a single barium atom is 4.29 x 10 μL cm³. What is the volume of a barium atom in…

A: We know that the relationship between cubic centimeter (cm3) and microliter(µL) is :1 cm3 = 1000 µL

Q: A chemist prepares a solution of potassium iodide (KI) by measuring out 2.4 x 10² μmol of potassium…

A: we have to calculate the concentration of KI solution

Q: What is the mass of 25.0mL octane, density= 0.707g/cm^3?

A:

Q: Calculate the molar mass of an element if a 1.20 mol sample of it has a density of 2.18 g/cm3 and…

A: General chemistry.

Q: A chemist prepares a solution of potassium bromide (KBr) by measuring out 1.75 g of KBr into a 250.…

A: Mass of KBr = 1.75 g  Volume of solution = 250 mL = 0.25 L

Q: The source of bitterness in dark chocolate is the compound theobromine, an alkaloid present in cocoa…

A: The number of molecules of theobromine present in the sample = 6.58 × 10206.58 × 1020 molecules…

Q: Convert 3.25 × 103 terameters (Tm) into nanometers (nm).

A: Given information,    3.25 × 103 terameters

Q: An aluminum cylinder is 0.512 ft in length and has a diameter of 0.3142 inch. The density of…

A: The objective of the question is to calculate the volume, mass and the number of aluminum atoms in…

Q: A chemist prepares a solution of magnesium fluoride (MgF₂) by measuring out 0.00648 µmol of…

A: The amount of the solute is = 0.00648 μmol The volume of the solution is = 500. mL The concentration…

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: 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: you are filling up a helium ballon for a birthday party. the balloon already had 0.38 moles of…

A:

Q: (2.23 x 10^3 g) (9.0 x 10^-3 g)/ 10.1 x 10^-7 s^2=

A: The given quantities are in the units of grams and seconds. The expression has been solved below.

Q: A chemist prepares a solution of sodium chloride (NaCl) by measuring out 67. µmol of sodium chloride…

A:

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

A:

Q: Analysis of a sample showed that it contained 68.3% lead, 10.6% sulfur, and 21.1% oxygen. What is…

A:

Q: A student performs a dehydration experiment and starts with 4.4021 grams of hydrate. After heating…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.