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Chemistry Chick
Questions and answers by visitors named
Chemistry Chick
Questions (13)
A candy sample is completely combusted in a bomb calorimeter. The calorimeter contains 982 g of water, and the measured
4 answers
4,282 views
If 5.20 g of HCl is added to enough distilled water to form 3.00 L of solution, what is the molarity of the
solution? [Use
4 answers
6,388 views
Calculate the molarity of a solution if 300.0 mL of it contains 16.8 g of KNO3.
[Use formula weight: KNO3, 101.11
4 answers
4,208 views
Calculate the osmolarity of a 2.0 × 10-3 M Na3PO4 solution. Na3PO4 is an ionic compound and produces an electrolytic solution.
3 answers
1,146 views
Calculate the osmotic pressure of a 6.0 × 10-2 M solution of NaCl at 20°C (293 K).
4 answers
1,835 views
Calculate the concentration (% W/V) of NaCl solution that was made by dissolving 15.0 g of sodium chloride in enough water to
3 answers
972 views
Calculate the concentration (% W/V) of NaCl solution that was made by dissolving 15.0 g of sodium chloride in enough water to
4 answers
3,459 views
Calculate the osmotic pressure of a 6.0 × 10-2 M solution of NaCl at 20°C (293 K).
Okay when I set up problem MRT....I get
3 answers
3,029 views
A buffer solution contains HC2H3O2 at a concentration of 0.225 M NaC2H3O at a concentration of 0.164 M. The value of Ka for
3 answers
2,091 views
I am stuck in the PLUG-N-CHUG PART. Here is what I get when I plug-n-chug...1.75 x 10-5 + log[0.164M/0.225M] I get the pH as
1 answer
367 views
In the industrial synthesis of ammonia, the equilibrium constant expression may be written as: Keq= [NH3]^2/[N2][H2]^3
Calculate
4 answers
3,453 views
Consider the reversible reaction: A(g)-2B(g)At equilibrium, the concentration of A is 0.381 M and that of B is 0.154 M. What is
4 answers
1,625 views
Ethylene glycol has a specific heat of 0.578 cal/(g×°C). If 23.2 g of ethylene glycol absorbs 75.6 cal of heat energy, what
4 answers
3,811 views
Answers (7)
UR CORRECT
a. the norms upon which the test was developed did not reflect her background.
1 K = 1 °C = 1.8 °F = 1.8 °R
75-3(8)=51
Helplessly looking at the fresh batch of cupcakes you removed from the oven, you notice their nakedness. Stepping back from the cupcakes, you ask yourself what will they where?
Imagine the soft, potent smell of cupcakes baking in your oven. As the warm aroma saturates the home, the mind quickly begins formulating designs for the cupcakes......
Okay I think i figured it out...the answer given for this problem: 0.533M is incorrect! The right answer is: 0.553M b/c u do have to convert 300 mL into L. so problem looks like this: (16.8g/101.11)/0.3L
