Answer:
Volume of ice is 1.09 m³.
Explanation:
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
D=m/v
D= density
m=mass
V=volume
Symbol:
The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.
Given data:
Mass of ice = 1000 Kg
Volume = ?
Solution:
The density of ice is 919 Kg/m³
d = m/v
v = m/d
v = 1000 Kg / 919 Kg/m³
v = 1.09 m³
The digestive and circulatory system
The mole ratio one would need to calculate will be the ratio of grams of O2 are in one mole; that's the atomic mass of oxygen from the periodic table.
Oxygen has an atomic mass of 15.998 (most of the time, rounding to 16 is fine). But remember, oxygen always exists in nature as a diatomic molecule (two atoms covalently bonded together) as O2...so (32 grams O2/1 mole O2)
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I believe it’s A, they form whole-number ratios in the compound
Molarity (M) = moles of the solute (mol) / Volume of the solution (L)
The molarity of the given KCl solution = 2.10 M
Volume of the given KCl solution = 85.0 mL
Hence,
2.10 M = Moles of KCl / 85.0 x 10⁻³ L
Moles of KCl = 2.10 M x 85.0 x 10⁻³ L
= 0.1785 mol
Moles (mol) = Mass (g) / Molar mass (g mol⁻¹)
Molar mass of KCl = 74.56 g mol⁻¹
Hence,
0.1785 mol = Mass of KCl / 74.56 g mol⁻¹
Mass of KCl = 0.1785 mol x 74.56 g mol⁻¹
= 13.30 g
Hence, mass of given KCl in 85.0 mL is 13.30 g.
