1) The equation for density, d, is d=mV where m is mass and V isvolume. What is the density, d, of a substance with a volume of V =13.8 cm3 and a mass of m = 52.7 g ? Express your answer numericallyin grams per cubic centimeter.
2) The equation for molarity, M, is M=nV where V is volume and nis the number of moles of solute. A certain solution has a molarityof M = 5.90 mol/L and has a volume of V = 0.900 L . What is thevalue of n? Express your answer numerically in moles.
3) The equation for photon energy, E, is E=hcλ where h =6.626Ã10â34 Jâ s (Planck's constant) and c = 2.99Ã108 m/s (the speedof light). What is the wavelength, λ, of a photon that has anenergy of E = 4.14Ã10â19 J ? Express your answer numerically inmeters
4) If 43x=27, what is the value of x?
1) The equation for density, d, is d=mV where m is mass and V isvolume. What is the density, d, of a substance with a volume of V =13.8 cm3 and a mass of m = 52.7 g ? Express your answer numericallyin grams per cubic centimeter.
2) The equation for molarity, M, is M=nV where V is volume and nis the number of moles of solute. A certain solution has a molarityof M = 5.90 mol/L and has a volume of V = 0.900 L . What is thevalue of n? Express your answer numerically in moles.
3) The equation for photon energy, E, is E=hcλ where h =6.626Ã10â34 Jâ s (Planck's constant) and c = 2.99Ã108 m/s (the speedof light). What is the wavelength, λ, of a photon that has anenergy of E = 4.14Ã10â19 J ? Express your answer numerically inmeters
4) If 43x=27, what is the value of x?
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