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the specific heat of ethylene glycol is 2.42 j/k-g. How many j of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1°c to 40.5°c?
A 757 mL gas sample at STP is compressed toa volume of 202 mL, and the temperature isincreased to 30 degrees C. What is the new pressureof the gas in Pa?
Determine the mass of the liquids in grams if this liquid is added to the beaker the combined mass becomes 238.254 grams? Given that the mass of beaker=225.08 g?
In the reaction MnO4- + 8H+ + 5e- ⇔ Mn2+ + 4H20, the manganese in 3.95 grams of KMnO4 is reduced to Mn2+. How many coulombs of charge must have been transferred to the permanganate ion.
Calculate the mass of hydrogen per oxide needed to obtain 0.460 L of oxygen gas at STP. 2H2O2(aq) → 2H2O(l) + O2(g).
If the density of water is 1.00g/mL, what is the weight in pounds of gallon of water? you may assume that mass and weight are equivalent at the earth's surface.
What substance is in excess? D) How many grams of the excess reactant is leftover (remaining) after the reaction stops
How many liters of O2 are needed to react completely with 45.0L of H2S at STP? 2H2S(g) + 3O2(g) -> 2SO2(g) +2H20(g)
Alkynes can be hydrated in the presence of acid and HgSO4, by electrophilic addition of a molecule of water to the triple bond.
A 20-g mass of argon occupies 15.0 l at a pressure of 25 kpa . find the volume of the argon when the pressure is increased to 530 kpa.
Net ionic equation for Sodium Carbonate and Lithium sulfate. Sodium carbonate and sulfuric acid. Strontium chloride and lithium sulfate.
Describe how soap works, include a drawing of a micelle in your description. Describe the difference between saturated and unsaturated fats. How can you as a consumer tell one from the other?
calculate the PH of a buffer solution prepared by dissolving 21.5 g benzoic acid and 37.7g sodium benzoate in 200.0 mL of solution?
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