Chemistry

Chemistry, 31.07.2019 15:10, diaamondz

What is the volume of a sample that has a mass of 30 g and a density of 4 g/ml?

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Chemistry, 08.10.2019 09:10, meowandcake

Scott needs to determine the density of a metallic rod. first, he should determine the of his sample on a second he should measure the of his sample finally he can calculate the by dividing word bank: mass spring scale volume by water displacement density volume/mass mass/volume the laboratory balance

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Chemistry, 09.10.2019 16:10, keaganaplin

Pressure and temperature affect the amount of space between gas molecules, which affects the volume and, therefore, the density of the gas since density=massvolume the molar mass of a substance, however, is a constant and can be used to identify an unknown gas sample. molar mass is found by dividing the mass of a sample (in grams) by the number of moles in that sample. the number of moles of gas can be calculated using the ideal gas law pv=nrt which can be rearranged as n=pvrt given the number of moles of a gas and its molar mass, you can calculate the mass of the gas. since density is equal to the ratio of the mass and volume, you can then divide by the volume to find density. alternatively, you can use the ratio n/v from the ideal gas equation where n is the number of moles and v is the volume, and convert from moles per unit volume to grams per unit volume using molar mass part a calculate the density of oxygen, o2, under each of the following conditions: stp 1.00 atm and 30.0 ∘c express your answers numerically in grams per liter. enter the density at stp first and separate your answers by a comma. view available hint(s) density at stp, density at 1 atma t m and 30.0 ∘c = nothing g/l part b to identify a diatomic gas (x2), a researcher carried out the following experiment: she weighed an empty 3.1-l bulb, then filled it with the gas at 1.20 atm and 25.0 ∘c and weighed it again. the difference in mass was 4.3 g . identify the gas.

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Physics, 18.10.2019 17:30, CameronVand21

The density of a substance is the ratio of its mass to its volume. the formula for density is: d = mass/volume. if the density and the volume of a liquid are known, its mass can be found by a) adding its density to its volume. b) dividing its density by its volume. c) multiplying its volume and density. d) subtracting its density from its volume

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Physics, 18.10.2019 17:30, savyblue1724707

The density of a substance is the ratio of its mass to its volume. the formula for density is: d = mass/volume. if the density and the volume of a liquid are known, its mass can be found by a) adding its density to its volume. b) dividing its density by its volume. c) multiplying its volume and density. d) subtracting its density from its volume

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