Answer:
20920J
Explanation:
E=m×c×difference in temperature
E=1kg×4184J/kgK×5K
E=20920J
Answer:
6.39 × 10⁻³ M
Explanation:
First, we will calculate the moles of HCl using the ideal gas equation.
P × V = n × R × T
n = P × V / R × T
n = 1.06 atm × 0.222 L / 0.0821 atm.L/mol.K × (26.0 + 273.15) K
n = 9.58 × 10⁻³ mol
The molar concentration of HCl is:
M = moles of HCl / liters of solution
M = 9.58 × 10⁻³ mol / 1.5 L
M = 6.39 × 10⁻³ M
%= total atomic mass of element/formula mass of the compoundX100
atomic mass(Ar) of sulfur- 32
Ar of Cu- 64
Ar of O-16
64+32+(16x4)= 160
32/160=0.2
0.2x100=20
20%
Answer:
Explanation:
Well, looking at your units only, considering that every mole has a mass of 180 g., I would do:
360/180=2mol
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