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How many grams are there in 1.3 x 1023 molecules of BCl3
How many gram formula weights of H2SO4?
How many milliliters of 3 F KOH can be prepared from 100 grams of KOH?
Calculate the number of grams-formula weights in 50 g of NaCl
Indicate how concentrated H2SO4 for which is 18 F may be diluted to produce 300 ml of 3 F H2SO4-
- If 75ml of AgNO3 solution reacts with enough Cu to produce 0.25g of Ag by single displacement, what is the molarity of the initial AgNO3 solution ?for the reaction AgNO3+Cu=Cu(NO2)2+Ag
In the following equation, label the Bronsted-Lowry acid, base and conjugate pairs. (2 marks)
CH3NH2 (aq) + H2PO4- (aq) ↔
CH3NH3+ (aq) +
pOH
HPO42- (aq)
A biochemist is investigating the conversion of atmospheric nitrogen to unstable form by bacteria that inhabit the root system of certain legumes and needs to know the pressure in Kilo Pascal exerted by 1.25g of nitrogen gas in a flask of volume 500mL at 37°C.
Calculate the number of grams-formula weights in 50 g of NaCl
How many grams of solute are in 500 ml 6 F HCl?
