A buffer solution that is 0.403 M in HF and 0.403 M in NaF has a pH of 3.14.
(1) The add...
Chemistry, 02.03.2020 21:12 stgitskaysie9028
A buffer solution that is 0.403 M in HF and 0.403 M in NaF has a pH of 3.14.
(1) The addition of 0.01 mol of H3O+ to 1.0 L of this buffer would cause the pH to increase slightly increase by 2 units decrease slightly decrease by 2 units not change.
(2) The capacity of this buffer for added H3O+could be increased by the addition of 0.148 molof the weak acid of the salt.
Consider these compounds:
A. CaCrO4
B. Fe2S3
C. CaCO3
D. Ca3(PO4)2
Complete the following statements by entering the letter corresponding to the correct compound.
Without doing any calculations it is possible to determine that zinc phosphate is more soluble than , and zinc phosphate is less soluble than .
It is not possible to determine whether zinc phosphate is more or less soluble than by simply comparing Ksp values.
Answers: 3
Chemistry, 22.06.2019 02:10
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)
Answers: 3
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