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is butane miscible by water
infants and children require a daily allowance of 0.52mg of copper per kg of body weight. Calculate for a 12kg infant the number of moles of copper required per day.
A (Ni+2) solution is electrolyzed using a current of 1.25A. What mass of (Ni0 ) plates out in 30 minutes.
Phosphorus-32 is used in biochemical studies to follow the pathway taken by
metabolites. Its half-life is 14.3 days. A vial containing 10µg of P-32 is accidentally
spilled into a sink. a) How long will it take P-32 in the drain to exhibit 65% of its original activity?
b) How many atoms of P-32 remain in the sink after 785 days?
6.87 g of solid calcium carbonate is mixed with 150.00ml of 120 m phosphoric
- balanced equation
-total ionic equation and identify spectator ions
- net ionic question
- number of moles of carbon dioxide gas
-pressure of carbon dioxide exert if collected in a 2.50 L container at SATP
If the pH of a solution is 4.2, what is the concentration of Mg(OH)₂? Also could you please show how you got to the answer, thanks.
Using half-reaction method, balance equation between Magnesium metal and Nitrogen gas.
Calculate the specifying gravity of a substance who’s density is 1.19 g/mL. water at the same temperature has a density of 0.98 g/mL
#331389 on Nov 2022