If a cube of gold has a length of 2.50 cm, what is the mass of the gold sample? Convert 19.3 g cm-3 to units of mg L-1.

Q: Mercury metal is poured into a graduated cylinder to exactly 22.5 mL. The mercury used to fill the…

A: Given information: Volume = 22.5 mL Mass of empty graduated cylinder = 12.0 g Mass of mercury +…

Q: What are 2 cups of chocolate chips converted into nanograms? 1 cup of chocolate chips = 170 g 1…

A:

Q: Claculate the mass of each sample.

A: Density = mass/volume  So, mass = density × volume

Q: The mass of earth is 5.98 ×10²⁴ kg. What is the mass expressed in tera-grams?

A: Given that : Mass of earth = 5.98 ×10²⁴ kg

Q: A chemist must dilute 28.6 mL of 801. mM aqueous aluminum sulfate (Al₂(SO4)3) solution until the…

A:

Q: An antacid tablet weighing 0.938 g contained calcium carbonate as the active ingredient, in addition…

A: We know that, according to the law of conservation of mass in a chemical reaction, the mass of the…

Q: The volume of a metal bar can be determined by immersing it in water in a graduated cylinder and…

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Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

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Q: A piece of metal ore weighs 8.75 g. When a student places it into a graduated cylinder containing…

A: The density of the ore is to be calculated

Q: A chemist weighed out 22.5 g of calcium. Calculate the number of moles of calcium she weighed out.…

A: In the realm of chemistry, precise measurements and calculations are fundamental to understanding…

Q: An 8.90 g sample of nickel occupies 1mL. Which statement is TRUE? The density of a 2 mL sample would…

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Q: Iron is found in Earth's crust as several iron compounds: Calculate the mass (in kg) of each…

A: Part B Given :-  mass of iron in the compound = 6.3 × 103 kg  formula of compound = Fe3O4  To…

Q: A chemist adds 375.0 mL of a 0.012 mM iron(II) bromide (FeBr₂) solution to a reaction flask.…

A: Given, Concentration of iron(II) bromide (FeBr2) solution= 0.012 mM = 0.000012 M = 0.000012 mol/L…

Q: A chemist must dilute 15.5 mL of 5.62 M aqueous sodium chloride (NaCl) solution until the…

A: Given, initial concentration of aqueous solution of NaCl =5.62 Minitial volume of solution =15.5…

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: Calculate the volume in mL

A:

Q: The total amount of fresh water on earth is estimated to be 3.73 x 10^8 km^3. What is this volume In…

A: Given: Amount of fresh water = 3.73×108 km3

Q: A chemist prepares a solution of zinc nitrate (Zn(NO,) by measuring out 91.0 µmol of zinc nitrate…

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Q: If a sample of unknown substance has a mass of 3.50 kg and a volume of 1.30 L, what is the density…

A: Given : Mass of substance = 3.50 Kg = 3500 g…

Q: A chemistry student weighs out 0.117 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: We know at the equivalent point the number of moles of NaOH must be equal to number of moles of…

Q: A beaker weighs 145.60 grams. The chemical weighs 3.467 grams. What is the total mass?

A: Given: Weight of beaker = 145.60 g Weight of chemical = 3.467 g

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.