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A rigid cylinder with a movable piston contains a sample of hydrogen gas. At 330. K, this sample has a pressure of 150. kPa and a volume of 3.50 L. What is the volume of this sample at STP?

If a seed crystal was added to a supersaturated solution, how would you characterize the resulting solution?

Identify the correct formula for Beryllium Phosphate. Question options: Be3 (PO4) 2 Be2 (PO4) 3 Be (PO4) 2 BePO4

Cold packs are used to treat minor injuries. Some cold packs contain NH4NO3 (s) and a small packet of water at room temperature before activation. To activate this type of cold pack, the small packet must be broken to mix the water and NH4NO3 (s).

How many moles of solute are dissolved in 6.5 L of a solution that has a molarity of 4.8 M? 31 moles 1.4 moles 0.74 moles

How many molecules are in 237g (about a cup of water)

3. A compound was analyzed and found to contain 9.8 g of nitrogen, 0.70 g of hydrogen, and 33.6 g of oxygen. What is the empirical formula of the compound?

A 126-gram sample of titanium metal is heated from 20.0°C to 45.4°C while absorbing 1.68 kJ of heat. What is the specific heat of titanium?

What pressure (in atm) will a sample of o2 gas occupy at 100.0 ml, if o2 has a volume of 25.00 ml at 2.0 atm?

What happens when francium and nitrogen are mixed