A) how many grams of Zinc (II) Nitrate would be required to
produce 350 ml of a .50 M solution?
Water is Unusual because...(Choose All true)
- soilid phase is less compact than the liquid phase.
-Most molecules as small as water are gases at room
temperature
-most molecules as small as water have higher boiling points
than water does
-its very strong hydrogen bonding and polarity (among other
things) give it unusual properties
1. hown many grams of Mg must react with HCl in order
to produce 80.0 mL of hydrogen gas at STP?
2. when dertermining the pressure of dry hydrogen gas, explain how
the measured atmospheric pressure is corrected for the
following:
a- the presence of water vapor
b- at level of liquid in the tube higher than in the beacher.
3. what special precautions should be taken when genetating
hydrogen gas
4. if 0.071g of magnesium is used in this...
How many grams of Cu(NO3)2 are required to
prepare 20.00 mL of a 0.118 M Cu2+ solution? Please use
the Periodic Table to calculate the molar mass using the
significant figures in that specific table.
molecular weight
???? g/mol Cu(NO3)2
mass Cu(NO3)2
required
???? g
how many grams of magnesium metal are required to react with
excess hydrochloric acid to produce 28.50 ml of hydrogen, measured
at 26.0 C and 760 mm Hg
1. How many grams of NaCl are required to prepare 500.
ml of 1.20M NaCl solution?
2. ) Write the balanced equation for the reaction that
occurs when sulfuric acid, H2SO4 is titrated with the base, sodium
hydroxide, NaOH. Sodium sulfate, Na2SO4 is the salt
produced.
3. SO2 gas is in a 2.0L flask at STP (0 o C, 1
atm).
A. Using the Ideal Gas Law, determine the concentration of the
gas in moles/L
B. Calculate the density of...
Determine the mass (in grams) of magnesium metal required to
produce 40.0 mL of H2 with a temperature of 26.9 oC and an
atmospheric pressure of 745 mmHg. Be sure to take into account
water vapour.
3. A sample of a halogen gas has a mass of 0.538 g and exerts a
pressure of 600.0 torr at 14.0 oC in a 100.0 mL flask. Calculate
the molar mass of the halogen gas. Is the halogen gas F2, Cl2, Br2
or...
How many grams of Mg(OH)2 will be needed to neutralize 25mL of
stomach acid if stomach acid is .10M HCL?
How many mL of a .10 M NaOH solution are needed to neutralize
15mL of 0.20 M H3PO4 solution?
1. How many mg of fluconazole are contained in 300 mL of a 0.4%
solution?
2. How many mL of a 20% magnesium sulfate solution will contain
14 grams of magnesium sulfate?
3.The label on a 30 mL aminophylline vial indicates a strength
of 500 mg/20 mL. How many mL of aminophylline would contain 225 mg
of the drug?
A. How many grams of lithium nitrate, LiNO3 (68.9 g/mol), are
required to prepare 342.6 mL of a 0.783 M LiNO3 solution? B. What
mass of H3PO4 (98.0 g/mol) is present in 36.2 L of a 0.0827 M
solution of H3PO4? C. The formula mass of zinc acetate trihydrate,
Zn(CH3COO)2 • 3H2O, is ? D. A 2.39-g sample of an oxide of chromium
contains 1.48 g of chromium. Calculate the simplest formula for the
compound E. The analysis of an...