A microbiologist is preparing a medium on which to culture E. coli bacteria. She buffers the medium at pH 7.00 to minimize the effect of acid-producing fermentation. What volumes of equimolar aqueous solutions of K2HPO4 and KH2PO4 must she combine to make 250.0 mL of the pH 7.00 buffer?
Answers: 2
Chemistry, 21.06.2019 17:00, kathleendthomas
Look at the reaction below: ca(hco3)2 --> caco3 + co2 + h2o first, balance the reaction. once balanced, use dimensional analysis or another method to find out how many moles of carbon dioxide will be produced if we start with 16.5 moles of calcium bicarbonate (calcium hydrogen carbonate). = mol of co2 number needs to be reported to three significant figures.
Answers: 1
Chemistry, 21.06.2019 17:10, lindseyklewis1p56uvi
A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?
Answers: 1
Chemistry, 21.06.2019 21:00, jasminortega2002
Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o
Answers: 1
Chemistry, 21.06.2019 23:50, stephaniero6
2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit
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