initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203 g mass of water 10.00 g volume of water 10.00 mL what is denisty of water?

Q: You find a solid material and you want to find the identity of this sample. You measure the mass of…

A: Mass of the sample is 52.635 g. Volume of water is 466 mL.

Q: If 26.2 grams of carbon (grapefruit) and 69.8 grams of oxygen combine to form carbon dioxide, how…

A: The reaction of Carbon and Oxygen to form carbon-di-oxide is--------------- C + O2 → CO2 So 1 mole…

Q: What are the rounded significant figures in The mm of vit.K 1 = 450.707g/mol

A: A question based on significant figure, which is to be accomplished.

Q: What is the % by mass of a silver ring that has a mass of 12.0 g and contains 11.1 g pure silver?

A: Mass percentage of a compound represents the mass of solute present in a given mass of compound. It…

Q: I need help from questions A-C

A: DECOMPOSITION REACTION: A reaction in which a compound is cleaved into two or more smaller…

Q: seous methane (CH4) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) and…

A: CH4(g) + 2O2(g) -----> CO2(g) + 2H2O(g) Mass of CH4= 11.4 g Mass of O2 = 13 g Molar mass of CH4=…

Q: 4. Exactly 2 g of steel wool was placed in a 100 g glass jar. After 50 g of water was added to the…

A: Dear student, we are authorised to solve only one question at a time. Please post rest of the…

Q: From 1962 until 1981 pennies were made from 95% copper and 5% zinc and had a mass of 3.1 g. Starting…

A:

Q: Compound A has a density of 4.5 g/cm3. Suppose you plan to mix 197 g Element A (18.9 g/cm3) with…

A:

Q: 85.9 grams of lithium react with hydrochloric acid. How many liters of hydrogen gas are produced?…

A: Given Reaction :-  2Li + 2HCl -------> 2LiCl + H2  Mass of Li = 85.9 g  Atomic mass of Li = 7…

Q: A 45.6 g sample of zinc sulphide was found to contain 30.6 g of zinc. Find the masses of zinc and…

A: Solution- A 45.6 g sample of zinc sulphide was found to contain 30.6 g of zinc; 1 g sample of zinc…

Q: A bottle of sodium hydroxide (NaOH) was found to contain 1.23 lb of this chemical. Express the…

A: The conversion factor can be described as the numerical factor that is used to convert one set of…

Q: Calcium carbonate decomposes at 1200 °C to form carbon dioxide and calcium oxide. If 28.1 L of…

A: Charles law states that, at constant temperature the volume of gas is directly proportional to the…

Q: 5. Carbon dioxide gas reacts with calcium hydroxide to produce calcium carbonate and water. If 450…

A: Since you have asked multiple question as per our company guidelines we are supposed to answer the…

Q: Copper sulfide is formed when copper and sulfur are heated together. In this reaction, 127 g of…

A: Given: Mass of copper=127 g Mass of sulfur =41 g Mass of sulfur remain unreacted=9 g

Q: A 25.3-g sample of an unknown compound contains 0.8 g of oxygen. What is the percent by mass of…

A: Percentage by mass is defined as the ratio of the mass of a substance to the mass of the solution…

Q: 4. Compare the total mass of the reactants with the total mass of the products: Total Mass of the…

A: Given reaction is,  K2CrO4 (aq) + Pb(NO3)2 (aq) →2KNO3 (aq) + PbCrO4 (s)

Q: 0.611 gram sample of copper is carried through the steps of this experiment. At the completion of…

A: We have given that  Initial amount of Copper used in experiment = 0.611 g Amount of copper recovered…

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

A: Determine mass of phosphorus in 45 Kg person?

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 22.8 g of carbon…

A: Since in any reaction, the total mass of reactants taken should always be equal to the mass of…

Q: e mass of c

A:

Q: A chemist makes 320. mL of calcium sulfate (CaSO,) working solution by adding distilled water to…

A:

Q: a room contains 4.23 x 10^24 molecules of oxygen. what is the mass of oxygen in the room?

A: Number of mole of substance is calculated by dividing mass of substance (m) to molar mass (M) of it…

Q: percent mass

A:

Q: Use unit analysis to show how to calculate the mass of 17.2 mL of gold. (The density of gold is…

A: The question is based on the concept of density. mass per unit volume is called density . It is an…

Q: Phosphorus combines with hydrogen to form phosphine. In this reaction, 123.9 g of phosphorus…

A: The balanced chemical reaction equation between the Phosphorous(P4) and the Hydrogen(H2) to form…

Q: A chemist adds 1.78 L of a 0.0117 g/L silver oxide (AgO) solution to a flask. Calculate the mass in…

A: Density of the substance is equal to the mass of the substance divided by its volume. Write the…

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: 3. Carefully put an egg in a glass half filled with vinegar. Replace the vinegar on the second day.…

A:

Q: a chemist has 19.50g alcohol. what is the volume of the sample, what additional information is…

A: The volume of a given liquid is defined as the amount of the space occupied by the liquid that fully…

Q: 8. A 141 mg sample was placed on a watch glass that has a mass of 9.203 g. What is the mass of the…

A: Given that, mass of sample=141 mg mass of watch glass= 9.203 g then,

Q: What is the mass of water lost by a hydrate given the following data? mass of a beaker = 27.761g…

A: Mass of beaker = 27.761 g Mass of beaker and hydrate = 30.525 g Mass of hydrate = (mass of beaker…

Q: A 28.0-g sample of nitrogen gas combines completely with 6.0 g of hydrogen gas to form ammonia. What…

A: Nitrogen gas reacts with hydrogen gas to form ammonia. Write the complete reaction. N2g+3H2g→2NH3g

Q: 1. Calculate the mass of mercury(II) oxide

A: Given :- volume of O2 = 36.0 mL  Temperature = 50.0 °C  Pressure = 1 atm  To calculate :-  Mass of…

Q: A sample of 508.4 g of copper completely reacted with oxygen to form 572.4 g of a copper oxide…

A: Given : Mass of copper reacted = 508.4 g And mass of copper oxide produced = 572.4 g

Q: Tin reacts with oxygen to form tin oxide. In a particular laboratory experiment in which oxygen…

A: We will first find mass of sn, then mass of tin oxide. Using this we will calculate oxygen reacted.

Q: A 12.5g sample of a hydrate of calcium chloride is found to contain 3.06 g of water. what is the…

A: We have to predict the formula for Calcium hydrate.

Q: A chemist adds 1.75 L of a 2.80 × 10 -5 mol/L mercury(II) iodide (Hgl,) solution to a reaction…

A: The concentration of any solution can be given by its molarity, molality and normality. The molarity…

Q: he mass of 1 n

A:

Q: Earth's atmosphere is approximately 78.0% nitrogen and 21.0% oxygen. What is the mass in grams of…

A: Earth's atmosphere consists of 78.0% nitrogen and 21.0% oxygen apart from 0.9% argon and 0.1% other…

Q: Earth's atmosphere is approximately 78.0% nitrogen and 21.0% oxygen. What is the mass in grams of…

A: Pressure of air (P) = 1 atm Volume of air (V) = 1000 L Temperature of air (T) = 298 K Universal gas…

Q: Liquid heptane, C,H,6 , burns in oxygen gas to yield carbon dioxide and water. What mass of carbon…

A:

Q: what is the mass of the methane

A: At STP :- 1 mol = 22.4 L  Molar mass of CH4 = 16.04 g/mol Mass of CH4 = number of moles of CH4 ×…

Q: 1. A 25g of Gold is found. Compute for the number of molecules and atoms present in the substance.

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Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 x 102 g. Use this information to answer…

A:

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 21.6 g of carbon…

A: The carbon and oxygen react to form carbon dioxide as follows: The stoichiometry of the reaction…

Q: An oxygen atom has a mass of 2.66 x 10 g and a glass of water has a mass of 0.050 kg. Use this…

A: 1 mole  of a substance is equal to 6.023 x 1023 atoms/ions/molecules. 6.023 x 1023  is called as the…

Q: A student observed the following data: Water temperature change Weight of water 8° C Metal…

A:

Q: Steam at a temperature of 134 °C is vented into an aluminum cup of mass 218 grams containing 600…

A: Given, Initial temperature of steam= 134°C Final temperature = 20°C Iniatial temperature of…

Q: If 45.98 g of sodium combines with an excess of chlorine gas to form 116.89 g of sodium chloride,…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

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.