7) Andre added 25mL of water to 75mL of a 5.0M stock solution to make 10 points
100mL. What is...
Chemistry, 03.05.2020 12:55 netflixacc0107
7) Andre added 25mL of water to 75mL of a 5.0M stock solution to make 10 points
100mL. What is the concentration of the new, diluted solution? *
Answers: 2
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Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery
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Chemistry, 22.06.2019 13:50
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
Chemistry, 22.06.2019 17:50
Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?
Answers: 2
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